statistics.java

/*
 * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
 * Click nbfs://nbhost/SystemFileSystem/Templates/GUIForms/JFrame.java to edit this template
 */
//package com.mycompany.dbms;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.table.DefaultTableModel;

/**
 *
 * @author AJAY KUMAR
 */
public class statistics extends javax.swing.JFrame {

    /**
     * Creates new form statistics
     */
    public statistics() {
        initComponents();
        setVisible(false);
    }
    String message="";
    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        jLabel1 = new javax.swing.JLabel();
        jScrollPane1 = new javax.swing.JScrollPane();
        jTable1 = new javax.swing.JTable();
        jLabel2 = new javax.swing.JLabel();
        jTextField1 = new javax.swing.JTextField();
        jLabel3 = new javax.swing.JLabel();
        jTextField2 = new javax.swing.JTextField();
        jButton1 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jLabel1.setFont(new java.awt.Font("Segoe UI", 0, 25)); // NOI18N
        jLabel1.setText("previous records");

        jTable1.setFont(new java.awt.Font("Segoe UI", 0, 16)); // NOI18N
        jTable1.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {

            },
            new String [] {
                "area_id", "city_id", "Date", " pollution(in %)"
            }
        ));
        jScrollPane1.setViewportView(jTable1);

        jLabel2.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jLabel2.setText("Area id");

        jTextField1.setFont(new java.awt.Font("Segoe UI", 0, 20)); // NOI18N
        jTextField1.setHorizontalAlignment(javax.swing.JTextField.CENTER);
        jTextField1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextField1ActionPerformed(evt);
            }
        });

        jLabel3.setFont(new java.awt.Font("Segoe UI", 0, 20)); // NOI18N
        jLabel3.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jLabel3.setText("city id ");

        jTextField2.setFont(new java.awt.Font("Segoe UI", 0, 20)); // NOI18N
        jTextField2.setHorizontalAlignment(javax.swing.JTextField.CENTER);
        jTextField2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextField2ActionPerformed(evt);
            }
        });

        jButton1.setText("Fetch");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(75, 75, 75)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addComponent(jLabel3, javax.swing.GroupLayout.DEFAULT_SIZE, 97, Short.MAX_VALUE)
                            .addComponent(jLabel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                        .addGap(117, 117, 117)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 157, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 157, javax.swing.GroupLayout.PREFERRED_SIZE)))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(61, 61, 61)
                        .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 488, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(220, 220, 220)
                        .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 111, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(15, 15, 15)
                        .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 240, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap(93, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(38, 38, 38)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 47, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel2, javax.swing.GroupLayout.PREFERRED_SIZE, 47, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(35, 35, 35)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 47, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel3, javax.swing.GroupLayout.PREFERRED_SIZE, 39, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 42, Short.MAX_VALUE)
                .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(31, 31, 31)
                .addComponent(jLabel1)
                .addGap(30, 30, 30)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 182, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(20, 20, 20))
        );

        pack();
    }// </editor-fold>                        

    private void jTextField1ActionPerformed(java.awt.event.ActionEvent evt) {                                            
        // TODO add your handling code here:
    }                                           

    private void jTextField2ActionPerformed(java.awt.event.ActionEvent evt) {                                            
        // TODO add your handling code here:
    }                                           

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        // TODO add your handling code here:
        validate_();
        if(message.length()==0)
        {
            try{  
        	//step1 load the driver class  
        	Class.forName("oracle.jdbc.driver.OracleDriver");  
        	  
        	//step2 create  the connection object  
        	Connection con=DriverManager.getConnection("jdbc:oracle:thin:@218.248.0.7:1521:RDBMS","it20737122","vasavi");  
        	String areastr = this.jTextField1.getText();
                String citystr = this.jTextField2.getText();
                String sql = "SELECT * FROM pollution_info where area_id=? AND city_id=?";
                PreparedStatement statement = con.prepareStatement(sql);
                statement.setInt(1,Integer.parseInt(areastr));
                statement.setInt(2,Integer.parseInt(citystr));             
                statement.execute();
                int rowsfound = statement.executeUpdate();
                System.out.println("Hello");
                if(rowsfound==0) 
               	 {
                        //write logic for data insertion into the database
                        JOptionPane.showMessageDialog(new JFrame(),"No details Found! ", "error", JOptionPane.ERROR_MESSAGE);
                 }
                else {
        	     Statement st=con.createStatement();
                 String query="SELECT * FROM pollution_info where area_id="+areastr+" AND city_id ="+citystr;
                 //statement.setString(1,pname1);
                 System.out.println(query);
                 //PreparedStatement st = con.prepareStatement(query);
                 ResultSet rs=st.executeQuery(query);
                 //table.setModel(DbUtils.resultSetToTableModel(rs));
                 while(rs.next())
                         {
                           String aid=String.valueOf(rs.getInt("area_id"));
                           String cid=rs.getString("city_id");
                           String day=rs.getString("day");
                           String ppoll=rs.getString("per_pollution");
                           String tbData[]={aid,cid,day,ppoll};
                           DefaultTableModel tblModel=(DefaultTableModel)jTable1.getModel();
                           tblModel.addRow(tbData);
                         }
            System.out.println(query);}
            
        	//stmt.executeQuery(query);  
        	System.out.println("Done");
        	  
        	//close the connection object  
        	con.close();  
        	  
        	}catch(Exception e){ 
        		System.out.println(e);
        		} 
        }
    }                                        

    /**
     * @param args the command line arguments
     */
     public void  validate_()
        {
            String areastr=jTextField1.getText();
            String citystr=jTextField2.getText();
            if(areastr.length()==0){
                    message=message+"Enter area id \n";
                }
            else {
			for(char c : areastr.replaceAll(" ", "").toCharArray()) {
                            if (!Character.isDigit(c)) {
					message = message + "area id cannot have alphabets and special characters!\n";
					break;
				}
			}
		}
            if(citystr.length()==0){
                    message=message+"Enter city id \n";
                }
            else {
			for(char c : citystr.replaceAll(" ", "").toCharArray()) {
                            if (!Character.isDigit(c)) {
					message = message + "city id cannot have alphabets and special characters!\n";
					break;
				}
			}
		}
                if (message.length() != 0) {
			JOptionPane.showMessageDialog(new JFrame(), message, "error", JOptionPane.ERROR_MESSAGE);
                
		}
        }
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(statistics.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(statistics.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(statistics.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(statistics.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new statistics().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify                     
    private javax.swing.JButton jButton1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTable jTable1;
    private javax.swing.JTextField jTextField1;
    private javax.swing.JTextField jTextField2;
    // End of variables declaration                   
}