Task - Exception Handling - User Input Validation #29
akash-coded
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Tasks
Replies: 49 comments 11 replies
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import java.util.*;
class PhoneNumber {
String countryCode;
String phNo;
PhoneNumber(String countryCode, String phNo) {
this.countryCode = countryCode;
this.phNo = phNo;
}
@Override
public String toString() {
return countryCode + "-" + phNo;
}
}
class IndianPhoneNumber extends PhoneNumber {
IndianPhoneNumber(String phNo) {
super("+91", phNo);
}
}
class PersonDetails {
String firstName;
String lastName;
String email;
String password;
IndianPhoneNumber[] phoneNumbers;
Date dateOfBirth;
public PersonDetails(String firstName, String lastName, String email, String password,
IndianPhoneNumber[] phoneNumbers, Date date ) {
this.firstName = firstName;
this.lastName = lastName;
this.email = email;
this.password = password;
this.phoneNumbers = phoneNumbers;
this.date = date;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public String getFullName() {
return firstName + " " + lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public Date getDateOfBirth() {
return dateOfBirth;
}
public void setDateOfBirth(Date dateOfBirth) {
this.dateOfBirth = dateOfBirth;
}
public IndianPhoneNumber[] getPhoneNumbers() {
return phoneNumbers;
}
public void setPhoneNumbers(IndianPhoneNumber[] phoneNumbers) {
this.phoneNumbers = phoneNumbers;
}
@Override
public String toString() {
return "PersonDetails [email=" + email + ", firstName=" + firstName + ", lastName=" + lastName + ", password="
+ password + ", phoneNumbers=" + Arrays.toString(phoneNumbers) + "]";
}
}
public class Validation {
static boolean isAlphabet(String s) {
for (int i = 0; i < s.length(); i++) {
if (!(Character.isLetter(s.charAt(i))))
return false;
}
return true;
}
static boolean isValidPhoneNumber(String phone) {
if (phone.length() != 10)
return false;
for (int i = 0; i < phone.length(); i++) {
if (!(Character.isDigit(phone.charAt(i))))
return false;
}
return true;
}
static boolean isValidEmail(String email) {
int dot = 0;
int at = 0;
for (int i = 0; i < email.length(); i++) {
if (email.charAt(i) == ' ')
return false;
if (email.charAt(i) == '@')
at++;
if (email.charAt(i) == '.')
dot++;
}
return (dot > 0 && at > 0);
}
static boolean isValidPassword(String password) {
if (password.length() < 8 || password.length() > 16)
return false;
int digits = 0;
for (int i = 0; i < password.length(); i++) {
if (Character.isDigit(password.charAt(i)))
digits++;
}
return digits > 0;
}
static boolean isValidDate(Date dateOfBirth) {
Calendar cal = Calendar.getInstance();
cal.setTime(dateOfBirth);
return ((cal.get(Calendar.MONTH) >= 1 || cal.get(Calendar.MONTH) <= 12)
&& (cal.get(Calendar.DATE) >= 1 || cal.get(Calendar.DATE) <= 31)
&& (cal.get(Calendar.YEAR) >= 1900 || cal.get(Calendar.YEAR) <= 2009));
}
static void validate(PersonDetails p) throws IllegalArgumentException {
if (!isAlphabet(p.getFirstName()))
throw new IllegalArgumentException("First name can only contain alphabets.");
if (!isAlphabet(p.getLastName()))
throw new IllegalArgumentException("Last name can only have alphabets.");
if (!isValidEmail(p.getEmail()))
throw new IllegalArgumentException(
"Email should contain an (.) and an (@) and should not have any spaces in between");
if (!isValidPassword(p.getPassword()))
throw new IllegalArgumentException(
"Password should be between 8 an 16 characters and should contain atleast one digit");
IndianPhoneNumber[] phoneNumbers = p.getPhoneNumbers();
for (int i = 0; i < phoneNumbers.length; i++) {
if (!isValidPhoneNumber(phoneNumbers[i].phNo))
throw new IllegalArgumentException("Phone numbers should be 10 digits");
}
if (!isValidDate(d.dateOfBirth)) {
throw new IllegalArgumentException("Invalid DOB");
}
}
public static void main(String[] args) throws IllegalArgumentException {
Scanner sc = new Scanner(System.in);
System.out.println("Enter first name: ");
String firstName = sc.next();
System.out.println("Enter Last name: ");
String lastName = sc.next();
System.out.println("Enter email : ");
String email = sc.next();
System.out.println("Enter Password : ");
String password = sc.next();
System.out.println("Enter total phone numbers");
int n = sc.nextInt();
sc.nextLine();
IndianPhoneNumber[] phoneNumbers = new IndianPhoneNumber[n];
System.out.println("Enter " + n + " phone numbers");
for (int i = 0; i < n; i++) {
phoneNumbers[i] = new IndianPhoneNumber(sc.next());
}
System.out.println("Enter DOB ");
Date date = new SimpleDateFormat("dd-MM-yyyy").parse(sc.next());
SimpleDateFormat d = new SimpleDateFormat("yyyy-MM-dd E");
System.out.println("d.format(dateOfBirth) ");
PersonDetails person = new PersonDetails(firstName, lastName, email, password, phoneNumbers, date);
try {
validate(person);
String fullName = person.getFullName();
System.out.println("Full name: " + fullName);
System.out.println(person);
} catch (IllegalArgumentException e) {
System.out.println(e.getMessage());
}
}
} |
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2 replies
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Almost perfect. Can change |
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Okay sir |
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`package Exception_Handling; } } } public Date getDateOfBirth() { } } User user=new User(email,password,firstName,lastName,phoneNumber,date); try{ } }` |
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2 replies
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Perfect. You can make the data members private for better security. |
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In the 'User' class, the data member |
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4 replies
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okay sir |
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Updated sir @akash-coded |
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Updated for Date Of Birth @akash-coded |
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Done sir @akash-coded |
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`import java.util.Scanner; } class IndianPhoneNumber extends PhoneNumber { class User{ } public class UserDetails { } |
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UPDATED : : |
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import java.util.Scanner; class PhoneNumber { } class Person { } public class FileOperations { } |
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Updated |
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`import java.util.; class PhoneNumber { } class IndianPhoneNumber extends PhoneNumber { class User { } class InvalidInputException extends Exception { class Validate { } public class DetailsCode { } |
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class PhoneNumber { PhoneNumber(String phNo) { @OverRide class UserDetails { public UserDetails(String email, String password, String firstName, String lastName, String[] phoneNumbers) { public String getEmail() { public void setEmail(String email) { public String getPassword() { public void setPassword(String password) { public String getFirstName() { public void setFirstName(String firstName) { public String getLastName() { public void setLastName(String lastName) { public PhoneNumber[] getPhoneNumbers() { public void setPhoneNumbers(String[] phoneNumbers) { class User extends UserDetails { public boolean isAlphabet(String str) { public boolean passwordCheck(String str) { public boolean emailCheck(String str) { public boolean phoneNumberCheck(PhoneNumber[] phoneNumbers) { } public class ExceptionHandelingTask2 { |
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import java.util.*;
class PhoneNumber {
String countryCode;
String phNo;
PhoneNumber(String countryCode, String phNo) {
this.countryCode = countryCode;
this.phNo = phNo;
}
@Override
public String toString() {
return countryCode + "-" + phNo;
}
}
class IndianPhoneNumber extends PhoneNumber {
IndianPhoneNumber(String phNo) {
super("+91", phNo);
}
}
class Inputs {
String firstName;
String lastName;
String email;
String password;
IndianPhoneNumber[] phoneNumber;
String dob;
public Inputs(String firstName, String lastName, String email, String password, IndianPhoneNumber[] phoneNumber,
String dob) {
this.firstName = firstName;
this.lastName = lastName;
this.email = email;
this.password = password;
this.phoneNumber = phoneNumber;
this.dob = dob;
}
boolean isValidAlphabet(String s) {
for (int i = 0; i < s.length(); i++) {
if (!(Character.isLetter(s.charAt(i))))
return false;
}
return true;
}
boolean isValidPhoneNumber(String ph) {
int n = ph.length();
if (n < 10)
return false;
for (int i = 0; i < n; i++) {
if (!(ph.charAt(i) >= '0' && ph.charAt(i) <= '9'))
return false;
}
return true;
}
boolean isValidEmail(String email) {
int op = 0;
int s = 0;
for (int i = 0; i < email.length(); i++) {
if (email.charAt(i) == ' ')
return false;
if (email.charAt(i) == '@')
s++;
if (email.charAt(i) == '.')
op++;
}
return (op > 0 && s > 0);
}
boolean isValidPassword(String pass) {
if (!(pass.length() >= 8 && pass.length() <= 16)) {
return false;
}
for (int i = 0; i < pass.length(); i++) {
if (pass.charAt(i) >= '0' && pass.charAt(i) <= '9') {
return true;
}
}
return false;
}
boolean isValidDob(String Dob) {
int date = Integer.parseInt(Dob.substring(0, 2));
int month = Integer.parseInt(Dob.substring(3, 5));
int year = Integer.parseInt(Dob.substring(6, 10));
if (date > 0 && date < 31) {
if (month > 0 && month < 13) {
return (year > 1900 && year <= 2019);
} else
return false;
}
return false;
}
void validate() throws IllegalArgumentException {
if (!(isValidAlphabet(this.firstName) && isValidAlphabet(this.lastName))) {
throw new IllegalArgumentException("Please Enter only alphabetic characters in name.");
}
if (!isValidPassword(password)) {
throw new IllegalArgumentException(
"The length of password should be between 8 to 16 charcaters and it must include atleast one digit");
}
if (!isValidDob(dob)) {
throw new IllegalArgumentException("The date of birth is invalid.");
}
if (!isValidEmail(email)) {
throw new IllegalArgumentException("Email must contain @ and '.' Example: abc@gmail.com");
}
IndianPhoneNumber[] phone = this.phoneNumber;
for (int i = 0; i < phone.length; i++) {
if (!isValidPhoneNumber(phone[i].phNo))
throw new IllegalArgumentException("Phone nnumber must contain only digits and should be of 10 digits");
}
}
@Override
public String toString() {
return "Inputs [email=" + email + ", firstName=" + firstName + ", lastName=" + lastName + ", Date of Birth="
+ dob
+ "], password=" + password + ", phoneNumber=" + Arrays.toString(phoneNumber) + "]";
}
}
public class Validate {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter your firstname: ");
String firstName = sc.nextLine();
System.out.println("Enter your lastname: ");
String lastName = sc.nextLine();
System.out.println("Enter the Date of Birth: ");
String dob = sc.nextLine();
System.out.println("Enter your email: ");
String email = sc.nextLine();
System.out.println("Enter your password: ");
String password = sc.nextLine();
System.out.println("Enter number of phonenumbers: ");
int n = sc.nextInt();
sc.nextLine();
IndianPhoneNumber[] phoneNumbers = new IndianPhoneNumber[n];
for (int i = 0; i < n; i++) {
System.out.println("Enter the " + i + " Phone number");
phoneNumbers[i] = new IndianPhoneNumber(sc.next());
}
Inputs obj = new Inputs(firstName, lastName, email, password, phoneNumbers, dob);
try {
obj.validate();
System.out.println(obj.toString());
} catch (IllegalArgumentException e) {
System.out.println(e.getMessage());
}
sc.close();
}
} |
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import java.util.Scanner;
class PhoneNumber {
String countryCode;
String phNo;
PhoneNumber(String countryCode, String phNo) {
this.countryCode = countryCode;
this.phNo = phNo;
}
@Override
public String toString() {
return countryCode + "-" + phNo;
}
}
class IndianPhoneNumber extends PhoneNumber {
IndianPhoneNumber(String phNo) {
super("+91", phNo);
}
}
class User
{
String email;
String password;
String firstName;
String lastName;
PhoneNumber phoneNumber;
public User(String email, String password, String firstName, String lastName,PhoneNumber phoneNumber) {
this.email = email;
this.password = password;
this.firstName = firstName;
this.lastName = lastName;
this.phoneNumber = phoneNumber;
}
void validate(User user) throws IllegalArgumentException{
if(validAlphabets(user.firstName))
throw new IllegalArgumentException("First Name Should only contain alphabets");
if(validAlphabets(user.lastName))
throw new IllegalArgumentException("Last Name Should only contain alphabets");
if(!(validPassword(user.password)))
throw new IllegalArgumentException("Password Should contain 8-16 characters and atleast 1 digit");
if(!(validEmail(user.email)))
throw new IllegalArgumentException("Email Should contain @ and . in it");
}
boolean validPhoneNumber(String phno){
int n=phno.length();
if(n<10)
return false;
for(int i=0;i<n;i++){
if(!(phno.charAt(i)>='0'&&phno.charAt(i)<='9'))
return false;
}
return true;
}
boolean validEmail(String email) {
int dot=0,sym=0,n=email.length();
for(int i=0;i<n;i++){
if(email.charAt(i)=='@')
sym=1;
if(email.charAt(i)=='.')
dot=1;
if(email.charAt(i)==' ')
return false;
}
return (sym==1 && dot==1);
}
boolean validPassword(String pswd) {
int n = pswd.length();
if((n<8)||(n>16))
return false;
else{
int c=0;
for(int i=0;i<n;i++){
if(pswd.charAt(i)>='0' && pswd.charAt(i)<='9')
c=1;
}
if(c==1)
return true;
}
return false;
}
boolean validAlphabets(String str) {
int n = str.toLowerCase().length();
for(int i=0;i<n;i++){
if(!(str.charAt(i)>='a' && str.charAt(i)<='z'))
return false;
}
return true;
}
}
public class UserDetails {
public static void main(String[] args) {
String firstName,lastName,password,email,phno,code;
Scanner scanner = new Scanner(System.in);
System.out.println("Enter User Details");
System.out.println("Enter User First Name:");
firstName = scanner.next();
System.out.println("Enter User Last Name:");
lastName = scanner.next();
System.out.println("Enter User Email:");
email = scanner.next();
System.out.println("Enter User Password:");
password = scanner.next();
System.out.println("Phone Number :");
System.out.println("Enter Country code :");
code = scanner.next();
System.out.println("Enter Phone Number :");
phno = scanner.next();
PhoneNumber phoneNumber = new PhoneNumber(code,phno);
User user = new User(email,password,firstName,lastName,phoneNumber);
System.out.println("Enter n :");
int n = scanner.nextInt();
IndianPhoneNumber[] indianPhoneNumbers = new IndianPhoneNumber[n];
System.out.println("Enter the numbers :");
for(int i=0;i<n;i++){
String phnum=scanner.next();
indianPhoneNumbers[i] = new IndianPhoneNumber(phnum);
}
try{
user.validate(user);
}
catch(IllegalArgumentException e){
System.out.println(e);
}
String fullName = user.firstName+user.lastName;
System.out.println(fullName);
for(int i=0;i<n;i++)
System.out.println(indianPhoneNumbers[i]);
}
}
|
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javaimport java.util.Scanner; } class IndianPhoneNumber extends PhoneNumber { class Triplet { } class Pair { } class DigPair { } class Info { } public class Exceptions3 { } |
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class PhoneNumber { } class UserDetails { } class User extends UserDetails { } public class ExceptionHandelingTask2 { |
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package com.validation;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
public class Main{
public static Scanner sc = new Scanner(System.in);
public static void main(String[] args) throws ParseException {
System.out.println("Enter the first name:");
String firstName = sc.nextLine();
System.out.println("Enter the last name:");
String lastName = sc.nextLine();
System.out.println("Enter the email:");
String email = sc.nextLine();
System.out.println("Enter the Password:");
String password = sc.nextLine();
System.out.println("Enter dob [dd-mm-yyyy]:");
String dateOfBirth = sc.nextLine();
System.out.println("how many phone number you want to add:");
int n = Integer.parseInt(sc.nextLine());
String[] numbers = new String[n];
System.out.println("Enter the phone numbers:");
for(int i = 0; i < n; i++) {
numbers[i] = sc.nextLine();
}
User userObj = new User(email,password, firstName, lastName, dateOfBirth,numbers);
try{
userObj.validate();
printFullName(userObj.getFirstName(), userObj.getLastName());
printPhoneNumbers(userObj.getPhoneNumbers());
printDateofBirthWithDate(userObj.getDateOfBirth());
}
catch(IllegalArgumentException e){
System.out.println(e);
}
}
public static void printFullName(String firstName, String lastName) {
System.out.println("FullName :" + firstName + " " + lastName);
}
public static void printPhoneNumbers(String[] numbers) {
for(int i = 0; i < numbers.length; i++) {
IndianPhoneNumber IndianPhone = new IndianPhoneNumber(numbers[i]);
System.out.println("Phone :" + IndianPhone);
}
}
public static void printDateofBirthWithDate(String dateOfBirth) throws ParseException {
Date date = new SimpleDateFormat("dd-MM-yyyy").parse(dateOfBirth);
SimpleDateFormat d = new SimpleDateFormat("yyyy-MM-dd E");
System.out.print("Date :");
System.out.println(d.format(date) );
}
}package com.validation;
import java.util.Arrays;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class User {
String email;
String password;
String firstName;
String lastName;
String dateOfBirth;
String[] phoneNumbers;
public User(String email, String password, String firstName, String lastName, String dateOfBirth,
String[] phoneNumbers) {
super();
this.email = email;
this.password = password;
this.firstName = firstName;
this.lastName = lastName;
this.dateOfBirth = dateOfBirth;
this.phoneNumbers = phoneNumbers;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getDateOfBirth() {
return dateOfBirth;
}
public void setDateOfBirth(String dateOfBirth) {
this.dateOfBirth = dateOfBirth;
}
public String[] getPhoneNumbers() {
return phoneNumbers;
}
public void setPhoneNumbers(String[] phoneNumbers) {
this.phoneNumbers = phoneNumbers;
}
@Override
public String toString() {
return "User [email=" + email + ", password=" + password + ", firstName=" + firstName + ", lastName=" + lastName
+ ", dateOfBirth=" + dateOfBirth + ", phoneNumbers=" + Arrays.toString(phoneNumbers) + "]";
}
//validation
void validate() throws IllegalArgumentException{
if(!isFirstAndLastNameValid(this.firstName, this.lastName)) {
throw new IllegalArgumentException("Please Enter only alphabetic characters in name.");
}
if(!isValidPassword(this.password)) {
throw new IllegalArgumentException(
"The length of password should be between 8 to 16 charcaters and it must include atleast one digit");
}
if(! isValidEmail(this.email)) {
throw new IllegalArgumentException("Email must contain @ and '.' Example: def@gmail.com");
}
if(! isValidPhoneNumber(this.phoneNumbers)) {
throw new IllegalArgumentException("Phone nnumber must contain only digits and should be of 10 digits");
}
if(! isValidDate(this.dateOfBirth)) {
throw new IllegalArgumentException("1 <= month <= 1 && 1 <= date <= 31"
+ "1900 <= year <= 2009 (check if the user is at least 13 years old)");
}
}
//validate firstName and lastName
boolean isFirstAndLastNameValid(String firstName, String lastName) {
boolean res1 = firstName.matches("[a-zA-Z]+");
boolean res2 = lastName.matches("[a-zA-Z]+");
return res1&&res2;
}
//validate password
boolean isValidPassword(String password) {
String regex = "^(?=.*[0-9])"
+ "(?=.*[a-z])(?=.*[A-Z])"
+ "(?=\\S+$).{8,16}$";
Pattern p = Pattern.compile(regex);
if (password == null) {
return false;
}
Matcher m = p.matcher(password);
return m.matches();
}
boolean isValidEmail(String email) {
String emailRegex = "^[a-zA-Z0-9_+&*-]+(?:\\."+
"[a-zA-Z0-9_+&*-]+)*@" +
"(?:[a-zA-Z0-9-]+\\.)+[a-z" +
"A-Z]{2,7}$";
Pattern pat = Pattern.compile(emailRegex);
if (email == null)
return false;
return pat.matcher(email).matches();
}
//check numbers for valid
boolean isValidPhoneNumber(String[] numbers) {
for(int i = 0; i < numbers.length; i++) {
if(! isvalid(numbers[i])) {
return false;
}
}
return true;
}
boolean isvalid(String num) {
Pattern p = Pattern.compile("^\\d{10}$");
Matcher m = p.matcher(num);
return (m.matches());
}
boolean isValidDate(String date) {
String[] dayMonthYear = date.split("-", 3);
int day = Integer.parseInt(dayMonthYear[0]);
int month = Integer.parseInt(dayMonthYear[1]);
int year = Integer.parseInt(dayMonthYear[2]);
return ((month >= 1 || month <= 12) && (day>=1 || day <= 31) && (year >= 1900 || year <= 2009));
}
}package com.validation;
public class PhoneNumber {
String countryCode;
String phNo;
PhoneNumber(String countryCode, String phNo) {
this.countryCode = countryCode;
this.phNo = phNo;
}
@Override
public String toString() {
return countryCode + "-" + phNo;
}
}
package com.validation;
public class IndianPhoneNumber extends PhoneNumber{
final static String countryCode = "+91";
public IndianPhoneNumber(String num) {
super(countryCode, num);
}
} |
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package com.lingu;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.Iterator;
import java.util.Scanner;
public class Persondetails {
String password;
String firstName;
String lastName;
String email;
Date date;
IndianPhoneNumber[] phoneNumbers;
Persondetails(String email,String password,String firstName,String lastName, Date date,IndianPhoneNumber[] phoneNumbers)
{
this.email=email;
this.password=password;
this.firstName=firstName;
this.lastName=lastName;
this.date=date;
this.phoneNumbers=phoneNumbers;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getFullName() {
return this.firstName + this.lastName;
}
public Date getDate() {
return date;
}
public void setDate(Date date) {
this.date = date;
}
public IndianPhoneNumber[] getPhoneNumbers() {
return phoneNumbers;
}
public void setPhoneNumbers(IndianPhoneNumber[] phoneNumbers) {
this.phoneNumbers = phoneNumbers;
}
static boolean isvalidate(String f)
{
boolean flag=true;
for(int i=0;i<f.length();i++)
{
if(!Character.isLetter(f.charAt(i)))
flag=false;
}
return flag;
}
static boolean isvalidatepassword(String f)
{
boolean flag=false;
if((f.length()>=8 && f.length()<=16))
{
for(int i=0;i<f.length();i++)
{
if(Character.isDigit(f.charAt(i)))
{
flag=true;
}
else {
flag=false;
}
}
}
else {
flag=false;
}
if(flag==false)
{
return false;
}
return true;
}
static boolean isvalidateemail(String f)
{
boolean flag=false;
for(int i=0;i<f.length();i++)
{
if((f.charAt(i)=='@' && f.charAt(i)=='.'))
{
if(Character.isWhitespace(f.charAt(i)))
flag=true;
else {
flag=false;
}
}
else {
flag=false;
}
}
return flag;
}
static boolean isvalidatephonenumber(String f)
{
boolean flag=true;
if(f.length()==10)
{
for(int i=0;i<f.length();i++)
{
if(!Character.isDigit(f.charAt(i)))
{
flag=false;
}
}
}
else {
flag=false;
}
if(!flag)
return false;
return true;
}
static boolean isvalidatedate(Date d)
{
Calendar cal = Calendar.getInstance();
cal.setTime(d);
return ((cal.get(Calendar.MONTH)>=1 && cal.get(Calendar.MONTH)<=12)
&& (cal.get(Calendar.YEAR)>=1900 && cal.get(Calendar.YEAR)<=2009)
&& (cal.get(Calendar.DATE)>=1 && cal.get(Calendar.DATE)<=31));
}
static void validate(Persondetails p)throws IllegalArgumentException
{
if(isvalidate(p.getFirstName()))
{
throw new IllegalArgumentException("First name can only contain alphabets.");
}
if(isvalidate(p.getLastName()))
{
throw new IllegalArgumentException("Last name can only contain alphabets.");
}
if(isvalidatepassword(p.getPassword()))
{
throw new IllegalArgumentException("password is between 8 and 16 characters, and also contains at least one digit.");
}
if(isvalidateemail(p.getEmail()))
{
throw new IllegalArgumentException("email contains an at-symbol (@) and a dot (.) or not. There should not be any spaces in the email.");
}
IndianPhoneNumber[] phoneNumbers=p.getPhoneNumbers();
for(int i=0;i<phoneNumbers.length;i++)
{
if(isvalidatephonenumber(phoneNumbers[i].phNo))
{
throw new IllegalArgumentException("phone numbers contain only digits, and are ten-digit long.");
}
}
if(isvalidatedate(p.getDate()))
{
throw new IllegalArgumentException("1 <= month <= 12\r\n"
+ "1 <= date <= 31\r\n"
+ "1900 <= year <= 2009");
}
}
public static void main(String[] args) throws ParseException {
Scanner s=new Scanner(System.in);
System.out.println("Enter the firstname");
String firstName=s.next();
System.out.println("Enter the lastname");
String lastName=s.next();
System.out.println("Enter the email");
String email=s.next();
System.out.println("Enter the password");
String password=s.next();
System.out.println("Enter total phone numbers");
int n=s.nextInt();
IndianPhoneNumber[] phoneNumbers = new IndianPhoneNumber[n];
for(int i=0;i<n;i++)
{
phoneNumbers[i]= new IndianPhoneNumber(s.nextLine(), s.nextLine());
}
System.out.println("Enter DOB ");
//String s1=1998-01-07 wednesday);
String s1=s.nextLine();
Date dateformat = new SimpleDateFormat("yyyy-MM-dd E").parse(s1);
System.out.println(dateformat);
Persondetails p= new Persondetails(firstName,lastName,email,password,dateformat,phoneNumbers);
try {
validate(p);
System.out.println("FULL NAME IS " +p.getFullName());
} catch (Exception e) {
System.out.println(e);
}
}
@Override
public String toString() {
return "Persondetails [password=" + password + ", firstName=" + firstName + ", lastName=" + lastName
+ ", email=" + email + ", date=" + date + ", phoneNumbers=" + Arrays.toString(phoneNumbers) + "]";
}
}
class IndianPhoneNumber extends PhoneNumber{
IndianPhoneNumber(String countryCode, String phNo) {
super(countryCode, phNo);
}
}
package com.lingu;
class PhoneNumber {
String countryCode;
String phNo;
PhoneNumber(String countryCode, String phNo) {
this.countryCode = countryCode;
this.phNo = phNo;
}
@Override
public String toString() {
return countryCode + "-" + phNo;
}
} |
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codepackage test;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
class PhoneNumber {
String countryCode;
String phNo;
PhoneNumber(String countryCode, String phNo) {
this.countryCode = countryCode;
this.phNo = phNo;
}
@Override
public String toString() {
return countryCode + "-" + phNo;
}
}
class IndianPhoneNumber extends PhoneNumber {
IndianPhoneNumber(String phNo) {
super("+91", phNo);
}
}
class PersonDetails {
String firstName;
String lastName;
String email;
String password;
IndianPhoneNumber[] phoneNumbers;
Date dateOfBirth;
public PersonDetails(String firstName, String lastName, String email, String password,
IndianPhoneNumber[] phoneNumbers, Date dateOfBirth ) {
this.firstName = firstName;
this.lastName = lastName;
this.email = email;
this.password = password;
this.phoneNumbers = phoneNumbers;
this.dateOfBirth = dateOfBirth;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public String getFullName() {
return firstName + " " + lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public Date getDateOfBirth() {
return dateOfBirth;
}
public void setDateOfBirth(Date dateOfBirth) {
this.dateOfBirth = dateOfBirth;
}
public IndianPhoneNumber[] getPhoneNumbers() {
return phoneNumbers;
}
public void setPhoneNumbers(IndianPhoneNumber[] phoneNumbers) {
this.phoneNumbers = phoneNumbers;
}
@Override
public String toString() {
return "PersonDetails [email=" + email + ", firstName=" + firstName + ", lastName=" + lastName + ", password="
+ password + ", phoneNumbers=" + Arrays.toString(phoneNumbers) + "]";
}
}
public class Validation {
static boolean isAlphabet(String s) {
for (int i = 0; i < s.length(); i++) {
if (!(Character.isLetter(s.charAt(i))))
return false;
}
return true;
}
static boolean isValidPhoneNumber(String phone) {
if (phone.length() != 10)
return false;
for (int i = 0; i < phone.length(); i++) {
if (!(Character.isDigit(phone.charAt(i))))
return false;
}
return true;
}
static boolean isValidEmail(String email) {
int dot = 0;
int at = 0;
for (int i = 0; i < email.length(); i++) {
if (email.charAt(i) == ' ')
return false;
if (email.charAt(i) == '@')
at++;
if (email.charAt(i) == '.')
dot++;
}
return (dot > 0 && at > 0);
}
static boolean isValidPassword(String password) {
if (password.length() < 8 || password.length() > 16)
return false;
int digits = 0;
for (int i = 0; i < password.length(); i++) {
if (Character.isDigit(password.charAt(i)))
digits++;
}
return digits > 0;
}
static boolean isValidDate(Date dateOfBirth) {
Calendar cal = Calendar.getInstance();
cal.setTime(dateOfBirth);
return ((cal.get(Calendar.MONTH) >= 1 || cal.get(Calendar.MONTH) <= 12)
&& (cal.get(Calendar.DATE) >= 1 || cal.get(Calendar.DATE) <= 31)
&& (cal.get(Calendar.YEAR) >= 1900 || cal.get(Calendar.YEAR) <= 2009));
}
static void validate(PersonDetails p) throws IllegalArgumentException {
if (!isAlphabet(p.getFirstName()))
throw new IllegalArgumentException("First name can only contain alphabets.");
if (!isAlphabet(p.getLastName()))
throw new IllegalArgumentException("Last name can only have alphabets.");
if (!isValidEmail(p.getEmail()))
throw new IllegalArgumentException(
"Email should contain an (.) and an (@) and should not have any spaces in between");
if (!isValidPassword(p.getPassword()))
throw new IllegalArgumentException(
"Password should be between 8 an 16 characters and should contain atleast one digit");
IndianPhoneNumber[] phoneNumbers = p.getPhoneNumbers();
for (int i = 0; i < phoneNumbers.length; i++) {
if (!isValidPhoneNumber(phoneNumbers[i].phNo))
throw new IllegalArgumentException("Phone numbers should be 10 digits");
}
if (!isValidDate(p.dateOfBirth)) {
throw new IllegalArgumentException("Invalid DOB");
}
}
public static void main(String[] args) throws IllegalArgumentException,ParseException {
Scanner sc = new Scanner(System.in);
System.out.println("Enter first name: ");
String firstName = sc.next();
System.out.println("Enter Last name: ");
String lastName = sc.next();
System.out.println("Enter email : ");
String email = sc.next();
System.out.println("Enter Password : ");
String password = sc.next();
System.out.println("Enter total phone numbers");
int n = sc.nextInt();
sc.nextLine();
IndianPhoneNumber[] phoneNumbers = new IndianPhoneNumber[n];
System.out.println("Enter " + n + " phone numbers");
for (int i = 0; i < n; i++) {
phoneNumbers[i] = new IndianPhoneNumber(sc.next());
}
System.out.println("Enter DOB ");
Date dateOfBirth = new SimpleDateFormat("dd-MM-yyyy").parse(sc.next());
SimpleDateFormat d = new SimpleDateFormat("yyyy-MM-dd E");
System.out.println(d.format(dateOfBirth) );
PersonDetails person = new PersonDetails(firstName, lastName, email, password, phoneNumbers, dateOfBirth);
try {
validate(person);
String fullName = person.getFullName();
System.out.println("Full name: " + fullName);
System.out.println(person);
} catch (IllegalArgumentException e) {
System.out.println(e.getMessage());
sc.close();
}
}
} |
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import java.util.Scanner;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
class PhoneNumber {
String countryCode;
String phNo;
PhoneNumber(String countryCode, String phNo) {
this.countryCode = countryCode;
this.phNo = phNo;
}
@Override
public String toString() {
return countryCode + "-" + phNo;
}
}
class IndianPhoneNumber extends PhoneNumber {
IndianPhoneNumber(String phNo) {
super("+91", phNo);
}
}
class Users {
String firstName;
String lastName;
String email;
String password;
Date dateOfBirth;
IndianPhoneNumber[] phoneNumbers;
public Users(String firstName, String lastName, String email, String password, Date dateOfBirth,
IndianPhoneNumber[] phoneNumbers) {
this.firstName = firstName;
this.lastName = lastName;
this.email = email;
this.password = password;
this.dateOfBirth = dateOfBirth;
this.phoneNumbers = phoneNumbers;
}
public static boolean isValidName(String name) {
return (name.matches("^[a-z][A-Z]*$"));
}
public static boolean isValidEmail(String email) {
return (email.matches("^(.+)@(\\S+)$"));
}
public static boolean isValidPhoneNo(String no) {
return (no.matches("\\d{10}"));
}
public static boolean isValidPassword(String pass) {
return (pass.matches("^(?=.*[0-9])(?=\\S+$).{8,16}$"));
}
public static boolean isValidDateOfBirth(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
return ((cal.get(Calendar.MONTH) >= 1 || cal.get(Calendar.MONTH) <= 12)
&& (cal.get(Calendar.DATE) >= 1 || cal.get(Calendar.DATE) <= 31)
&& (cal.get(Calendar.YEAR) >= 1900 || cal.get(Calendar.YEAR) <= 2009));
}
public void validate() throws IllegalArgumentException {
if (!isValidName(this.firstName)) {
throw new IllegalArgumentException("First name must only contain letters");
}
if (!isValidName(this.lastName)) {
throw new IllegalArgumentException("Last name must only contain letters");
}
if (!isValidEmail(this.email)) {
throw new IllegalArgumentException("Email must contain @ and . symbols");
}
for (int i = 0; i < this.phoneNumbers.length; i++) {
if (!isValidPhoneNo(this.phoneNumbers[i].phNo)) {
throw new IllegalArgumentException("Phone No must be of 10 digits");
}
}
if (!isValidPassword(this.password)) {
throw new IllegalArgumentException(
"Password must be minimum of 8 characters and maximum of 16 characters with atleast 1 digit");
}
if (!isValidDateOfBirth(this.dateOfBirth)) {
throw new IllegalArgumentException("Invalid DOB");
}
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public Date getDateOfBirth() {
return dateOfBirth;
}
public void setDateOfBirth(Date dateOfBirth) {
this.dateOfBirth = dateOfBirth;
}
public IndianPhoneNumber[] getPhoneNumbers() {
return phoneNumbers;
}
public void setPhoneNumbers(IndianPhoneNumber[] phoneNumbers) {
this.phoneNumbers = phoneNumbers;
}
@Override
public String toString() {
SimpleDateFormat form = new SimpleDateFormat("yyyy-MM-dd E");
return String.format("Full Name: %s %nEmail id: %s %nDate Of Birth: %s %nPhone number: %s",
(this.firstName + " " + this.lastName),
this.email, form.format(this.dateOfBirth), Arrays.toString(this.phoneNumbers))
.replaceAll("\\[|\\]", "");
}
}
public class Validation {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
System.out.println("Enter first Name: ");
String fName = s.next();
System.out.println("Enter last Name: ");
String lName = s.next();
System.out.println("Enter emailId: ");
String email = s.next();
System.out.println("Enter password: ");
String password = s.next();
System.out.println("Enter your Date Of Birth (YYYY-MM-DD): ");
Date date = null;
try {
date = new SimpleDateFormat("yyyy-MM-dd").parse(s.next());
} catch (ParseException e) {
e.printStackTrace();
}
System.out.println("How many phone numbers you have: ");
int n = s.nextInt();
IndianPhoneNumber[] phoneNumbers = new IndianPhoneNumber[n];
for (int i = 0; i < n; i++) {
System.out.println("Enter phone Number: ");
phoneNumbers[i] = new IndianPhoneNumber(s.next());
}
Users user = new Users(fName, lName, email, password, date, phoneNumbers);
user.validate();
// try {
// user.validate();
// } catch (IllegalArgumentException e) {
// System.out.println(e.getMessage());
// }
System.out.println(user);
s.close();
}
} |
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import java.util.Scanner;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
class PhoneNumber {
String countryCode;
String phNo;
PhoneNumber(String countryCode, String phNo) {
this.countryCode = countryCode;
this.phNo = phNo;
}
@Override
public String toString() {
return countryCode + "-" + phNo;
}
}
class IndianPhoneNumber extends PhoneNumber {
IndianPhoneNumber(String phNo) {
super("+91", phNo);
}
}
class Users {
String firstName;
String lastName;
String email;
String password;
Date dateOfBirth;
IndianPhoneNumber[] phoneNumbers;
public Users(String firstName, String lastName, String email, String password, Date dateOfBirth,
IndianPhoneNumber[] phoneNumbers) {
this.firstName = firstName;
this.lastName = lastName;
this.email = email;
this.password = password;
this.dateOfBirth = dateOfBirth;
this.phoneNumbers = phoneNumbers;
}
public static boolean isValidName(String name) {
return (name.matches("^[a-z][A-Z]*$"));
}
public static boolean isValidEmail(String email) {
return (email.matches("^(.+)@(\\S+)$"));
}
public static boolean isValidPhoneNo(String no) {
return (no.matches("\\d{10}"));
}
public static boolean isValidPassword(String pass) {
return (pass.matches("^(?=.*[0-9])(?=\\S+$).{8,16}$"));
}
public static boolean isValidDateOfBirth(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
return ((cal.get(Calendar.MONTH) >= 1 || cal.get(Calendar.MONTH) <= 12)
&& (cal.get(Calendar.DATE) >= 1 || cal.get(Calendar.DATE) <= 31)
&& (cal.get(Calendar.YEAR) >= 1900 || cal.get(Calendar.YEAR) <= 2009));
}
public void validate() throws IllegalArgumentException {
if (!isValidName(this.firstName)) {
throw new IllegalArgumentException("First name must only contain letters");
}
if (!isValidName(this.lastName)) {
throw new IllegalArgumentException("Last name must only contain letters");
}
if (!isValidEmail(this.email)) {
throw new IllegalArgumentException("Email must contain @ and . symbols");
}
for (int i = 0; i < this.phoneNumbers.length; i++) {
if (!isValidPhoneNo(this.phoneNumbers[i].phNo)) {
throw new IllegalArgumentException("Phone No must be of 10 digits");
}
}
if (!isValidPassword(this.password)) {
throw new IllegalArgumentException(
"Password must be minimum of 8 characters and maximum of 16 characters with atleast 1 digit");
}
if (!isValidDateOfBirth(this.dateOfBirth)) {
throw new IllegalArgumentException("Invalid DOB");
}
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public Date getDateOfBirth() {
return dateOfBirth;
}
public void setDateOfBirth(Date dateOfBirth) {
this.dateOfBirth = dateOfBirth;
}
public IndianPhoneNumber[] getPhoneNumbers() {
return phoneNumbers;
}
public void setPhoneNumbers(IndianPhoneNumber[] phoneNumbers) {
this.phoneNumbers = phoneNumbers;
}
@Override
public String toString() {
SimpleDateFormat form = new SimpleDateFormat("yyyy-MM-dd E");
return String.format("Full Name: %s %nEmail id: %s %nDate Of Birth: %s %nPhone number: %s",
(this.firstName + " " + this.lastName),
this.email, form.format(this.dateOfBirth), Arrays.toString(this.phoneNumbers))
.replaceAll("\\[|\\]", "");
}
}
public class Validation {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
System.out.println("Enter first Name: ");
String fName = s.next();
System.out.println("Enter last Name: ");
String lName = s.next();
System.out.println("Enter emailId: ");
String email = s.next();
System.out.println("Enter password: ");
String password = s.next();
System.out.println("Enter your Date Of Birth (YYYY-MM-DD): ");
Date date = null;
try {
date = new SimpleDateFormat("yyyy-MM-dd").parse(s.next());
} catch (ParseException e) {
e.printStackTrace();
}
System.out.println("How many phone numbers you have: ");
int n = s.nextInt();
IndianPhoneNumber[] phoneNumbers = new IndianPhoneNumber[n];
for (int i = 0; i < n; i++) {
System.out.println("Enter phone Number: ");
phoneNumbers[i] = new IndianPhoneNumber(s.next());
}
Users user = new Users(fName, lName, email, password, date, phoneNumbers);
user.validate();
System.out.println(user);
s.close();
}
} |
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import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
class PhoneNumber {
String countryCode;
String phNo;
PhoneNumber(String countryCode, String phNo) {
this.countryCode = countryCode;
this.phNo = phNo;
}
@Override
public String toString() {
return countryCode + "-" + phNo;
}
}
class IndianPhoneNumber extends PhoneNumber {
IndianPhoneNumber(String phNo) {
super("+91", phNo);
}
}
public class UserDetails {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
try {
System.out.print("Enter Email: ");
String email = sc.nextLine();
System.out.print("Enter Password: ");
String password = sc.nextLine();
System.out.print("Enter First Name: ");
String firstName = sc.nextLine();
System.out.print("Enter Last Name: ");
String lastName = sc.nextLine();
System.out.print("Enter Date of Birth (yyyy-MM-dd): ");
String dobString = sc.nextLine();
System.out.print("Enter number of phone numbers: ");
int count = Integer.parseInt(sc.nextLine());
List<String> phoneNumbers = new ArrayList<>();
for (int i = 0; i < count; i++) {
System.out.print("Enter phone number " + (i + 1) + ": ");
phoneNumbers.add(sc.nextLine());
}
validate(firstName, lastName, password, email, dobString, phoneNumbers);
String fullName = firstName + " " + lastName;
IndianPhoneNumber[] phoneArray = phoneNumbers.stream()
.map(IndianPhoneNumber::new)
.toArray(IndianPhoneNumber[]::new);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Date dob = sdf.parse(dobString);
SimpleDateFormat outputFormat = new SimpleDateFormat("yyyy-MM-dd EEE");
String dobFormatted = outputFormat.format(dob);
System.out.println("\n--- User Info ---");
System.out.println("Full Name: " + fullName);
System.out.println("Email: " + email);
System.out.println("Date of Birth: " + dobFormatted);
System.out.println("Phone Numbers:");
for (PhoneNumber pn : phoneArray) {
System.out.println(pn);
}
} catch (IllegalArgumentException | ParseException | InputMismatchException e) {
System.out.println("Validation Error: " + e.getMessage());
} finally {
sc.close();
}
}
public static void validate(String firstName, String lastName, String password, String email,
String dobString, List<String> phoneNumbers) {
if (!firstName.matches("[A-Za-z]+"))
throw new IllegalArgumentException("First name must contain only alphabets.");
if (!lastName.matches("[A-Za-z]+"))
throw new IllegalArgumentException("Last name must contain only alphabets.");
if (password.length() < 8 || password.length() > 16 || !password.matches(".*\\d.*"))
throw new IllegalArgumentException("Password must be 8-16 characters and contain at least one digit.");
if (!email.contains("@") || !email.contains(".") || email.contains(" "))
throw new IllegalArgumentException("Invalid email format.");
for (String number : phoneNumbers) {
if (!number.matches("\\d{10}"))
throw new IllegalArgumentException("Phone number must be exactly 10 digits.");
}
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
sdf.setLenient(false);
try {
Date dob = sdf.parse(dobString);
Calendar cal = Calendar.getInstance();
cal.setTime(dob);
int year = cal.get(Calendar.YEAR);
int month = cal.get(Calendar.MONTH) + 1;
int day = cal.get(Calendar.DAY_OF_MONTH);
if (month < 1 || month > 12)
throw new IllegalArgumentException("Month must be between 1 and 12.");
if (day < 1 || day > 31)
throw new IllegalArgumentException("Day must be between 1 and 31.");
if (year < 1900 || year > 2009)
throw new IllegalArgumentException("Year must be between 1900 and 2009.");
} catch (ParseException e) {
throw new IllegalArgumentException("DOB must be a valid date in yyyy-MM-dd format.");
}
}
} |
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|
PRASETHA N package com.practice.problems.java;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
public class ExceptionHandling {
public static void main(String[] args) {
try {
UserRegistrationAndValidation user = new UserRegistrationAndValidation("ravi.mohan@google.com", "password1",
"Ravi", "Mohan", "2005-08-15", List.of("9111111111", "9123456789"));
user.validate();
System.out.println("User registration data is valid.");
System.out.println("Full Name: " + user.getFullName());
System.out.println("Date of Birth: " + user.getDateOfBirth());
System.out.println("Phone Numbers:");
for (IndianPhoneNumber num : user.getIndianPhoneNumbers()) {
System.out.println(num);
}
} catch (IllegalArgumentException e) {
System.err.println("Error: " + e.getMessage());
}
}
}
class PhoneNumber {
String countryCode;
String phNo;
PhoneNumber(String countryCode, String phNo) {
this.countryCode = countryCode;
this.phNo = phNo;
}
@Override
public String toString() {
return countryCode + "-" + phNo;
}
}
class IndianPhoneNumber extends PhoneNumber {
IndianPhoneNumber(String phNo) {
super("+91", phNo);
}
}
class UserRegistrationAndValidation {
private String email;
private String password;
private String firstName;
private String lastName;
private String dob;
private List<String> phoneNumbers;
public UserRegistrationAndValidation(String email, String password, String firstName, String lastName, String dob,
List<String> phoneNumbers) {
this.email = email;
this.password = password;
this.firstName = firstName;
this.lastName = lastName;
this.dob = dob;
this.phoneNumbers = phoneNumbers;
}
public String getFullName() {
return firstName + " " + lastName;
}
public Date getDateOfBirth() {
try {
return new SimpleDateFormat("yyyy-MM-dd").parse(dob);
} catch (ParseException e) {
return null;
}
}
public IndianPhoneNumber[] getIndianPhoneNumbers() {
IndianPhoneNumber[] arr = new IndianPhoneNumber[phoneNumbers.size()];
for (int i = 0; i < phoneNumbers.size(); i++) {
arr[i] = new IndianPhoneNumber(phoneNumbers.get(i));
}
return arr;
}
private boolean isAlphabetic(String name) {
return name.matches("[a-zA-Z]+");
}
private boolean isValidEmail(String email) {
return email.contains("@") || !email.contains(".") || email.contains(" ");
}
private boolean isValidPassword(String password) {
if (password.length() < 8 || password.length() > 16) {
return false;
}
boolean hasDigit = false;
for (char ch : password.toCharArray()) {
if (Character.isDigit(ch)) {
hasDigit = true;
break;
}
}
return hasDigit;
}
private boolean isValidPhoneNumber(String phone) {
return phone.matches("\\d{10}");
}
private boolean isValidDOB(String date) {
String[] parts = date.split("-");
if (parts.length != 3)
return false;
if (!parts[0].matches("\\d{4}") || !parts[1].matches("\\d{1,2}") || !parts[2].matches("\\d{1,2}"))
return false;
int year = Integer.parseInt(parts[0]);
int month = Integer.parseInt(parts[1]);
int day = Integer.parseInt(parts[2]);
if (year < 1900 || year > 2009)
return false;
if (month < 1 || month > 12)
return false;
if (day < 1 || day > 31)
return false;
int currentYear = Calendar.getInstance().get(Calendar.YEAR);
if ((currentYear - year) < 13)
return false;
return true;
}
public void validate() {
if (!isAlphabetic(firstName)) {
throw new IllegalArgumentException("First name must contain only letters.");
}
if (!isAlphabetic(lastName)) {
throw new IllegalArgumentException("Last name must contain only letters.");
}
if (!isValidEmail(email)) {
throw new IllegalArgumentException("Email must contain '@', '.' and no spaces.");
}
if (!isValidPassword(password)) {
throw new IllegalArgumentException("Password must be 8-16 characters and contain at least one digit.");
}
for (String numberStr : phoneNumbers) {
IndianPhoneNumber number = new IndianPhoneNumber(numberStr);
if (!isValidPhoneNumber(number.phNo)) {
throw new IllegalArgumentException("Phone number must be exactly 10 digits: " + number.phNo);
}
}
if (!isValidDOB(dob)) {
throw new IllegalArgumentException("DOB must be between 1900 and 2009 and age must be at least 13.");
}
}
} |
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|
Bhavana import java.text.ParseException; class PhoneNumber { } class IndianPhoneNumber extends PhoneNumber { } public class UserRegistration { } |
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|
Lohith R package org.example; import java.text.ParseException; public class CitadelRestoration { } class Validate { int a=0; if(a<0&&b<0){ } class UserDetails{ } class PhoneNumber { } class IndianPhoneNumber extends PhoneNumber{ } |
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import java.text.ParseException; class PhoneNumber { } class IndianPhoneNumber extends PhoneNumber { public class Main { } |
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WAP to take the following as inputs from the user:
Display DOB in the given format. Example - 2022-02-23 Wed
Before proceeding further, validate the following by calling validate() function:
In case any validation fails, raise an IllegalArgumentException (with a valid custom message) exception for the same. Handle any exceptions raised in the program.
After the inputs have been validated, do the following:
Display the detailed info of the user.
IndianPhoneNumber class extends the following class:
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