java-problems-hr.txt

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JAVA.1
easy
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PROBLEM STATEMENT:
Welcome to the world of Java! In this challenge, we practice printing to stdout.

The code stubs in your editor declare a Solution class and a main method. Complete the main method by copying the two lines of code below and pasting them inside the body of your main method.

[expression]
[expression]


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JAVA.2
easy
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PROBLEM STATEMENT:
Most HackerRank challenges require you to read input from stdin (standard input) and write output to stdout (standard output).

One popular way to read input from stdin is by using the Scanner class and specifying the Input Stream as System.in. For example:

[expression]
[expression]
[expression]
[expression]

[expression]
[expression]



The code above creates a Scanner object named [expression] and uses it to read a String and an int. It then closes the Scanner object because there is no more input to read, and prints to stdout using System.out.println(String). So, if our input is:

Hi 5


Our code will print:

myString is: Hi
myInt is: 5


Alternatively, you can use the BufferedReader class.

Task 
In this challenge, you must read [expression] integers from stdin and then print them to stdout. Each integer must be printed on a new line. To make the problem a little easier, a portion of the code is provided for you in the editor below.
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JAVA.3
easy
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PROBLEM STATEMENT:
In this challenge, we test your knowledge of using if-else conditional statements to automate decision-making processes. An if-else statement has the following logical flow:



Source: Wikipedia

Task 
Given an integer, [expression], perform the following conditional actions:


If [expression] is odd, print Weird
If [expression], print Not Weird
If [expression], print Weird
If [expression], print Not Weird


Complete the stub code provided in your editor to print whether or not [expression] is weird.
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JAVA.4
easy
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PROBLEM STATEMENT:
In this challenge, you must read an integer, a double, and a String from stdin, then print the values according to the instructions in the Output Format section below. To make the problem a little easier, a portion of the code is provided for you in the editor.

Note: We recommend completing Java Stdin and Stdout I before attempting this challenge.
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JAVA.5
easy
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PROBLEM STATEMENT:
Java's System.out.printf function can be used to print formatted output. The purpose of this exercise is to test your understanding of formatting output using printf.

To get you started, a portion of the solution is provided for you in the editor; you must format and print the input to complete the solution.
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JAVA.6
easy
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PROBLEM STATEMENT:
Objective 
In this challenge, we're going to use loops to help us do some simple math.

Task 
Given an integer, [expression]) should be printed on a new line in the form: N x i = result.
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JAVA.7
easy
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PROBLEM STATEMENT:
We use the integers [expression] to create the following series:

[expression]

You are given [expression] space-separated integers. 
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JAVA.8
easy
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PROBLEM STATEMENT:
Java has 8 primitive data types; char, boolean, byte, short, int, long, float, and double. For this exercise, we'll work with the primitives used to hold integer values (byte, short, int, and long):


A byte is an 8-bit signed integer.
A short is a 16-bit signed integer.
An int is a 32-bit signed integer.
A long is a 64-bit signed integer.


Given an input integer, you must determine which primitive data types are capable of properly storing that input.

To get you started, a portion of the solution is provided for you in the editor.

Reference: https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html
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JAVA.9
easy
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PROBLEM STATEMENT:

  "In computing, End Of File (commonly abbreviated EOF) is a condition in a computer operating system where no more data can be read from a data source."
  — (Wikipedia: End-of-file)


The challenge here is to read [expression] lines of content.

Hint: Java's Scanner.hasNext() method is helpful for this problem.
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JAVA.10
easy
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PROBLEM STATEMENT:
Static initialization blocks are executed when the class is loaded, and you can initialize static variables in those blocks.

It's time to test your knowledge of Static initialization blocks. You can read about it here.  

You are given a class Solution with a main method. Complete the given code so that it outputs the area of a parallelogram with breadth [expression]. You should read the variables from the standard input.

If [expression], the output should be "java.lang.Exception: Breadth and height must be positive" without quotes.
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JAVA.11
easy
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PROBLEM STATEMENT:
You are given an integer [expression], you have to convert it into a string.

Please complete the partially completed code in the editor. If your code successfully converts [expression] the code will print "Good job". Otherwise it will print "Wrong answer".

[expression] inclusive.
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JAVA.12
easy
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PROBLEM STATEMENT:
The Calendar class is an abstract class that provides methods for converting between a specific instant in time and a set of calendar fields such as YEAR, MONTH, DAY_OF_MONTH, HOUR, and so on, and for manipulating the calendar fields, such as getting the date of the next week.



You are given a date. You just need to write the method, [expression], which returns the day on that date.  To simplify your task, we have provided a portion of the code in the editor. 

For example, if you are given the date [expression] as the day on that date. 


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JAVA.13
easy
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PROBLEM STATEMENT:
Given a double-precision number, [expression] into the US, Indian, Chinese, and French currency formats. Then print the formatted values as follows:

US: formattedPayment
India: formattedPayment
China: formattedPayment
France: formattedPayment


where [expression] formatted according to the appropriate Locale's currency.

Note: India does not have a built-in Locale, so you must construct one where the language is en (i.e., English).
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JAVA.14
easy
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PROBLEM STATEMENT:

  "A string is traditionally a sequence of characters, either as a literal constant or as some kind of variable." — Wikipedia: String (computer science)


This exercise is to test your understanding of Java Strings. A sample String declaration:

String myString = "Hello World!"


The elements of a String are called characters. The number of characters in a String is called the length, and it can be retrieved with the String.length() method.

Given two strings of lowercase English letters, [expression], perform the following operations:


Sum the lengths of [expression].
Determine if [expression] in the dictionary?).
Capitalize the first letter in [expression] and print them on a single line, separated by a space.

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SOLUTION NOT FOUND
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