java date difference between two dates - using jDateChooser in Java

In this tutorial I show you how get date difference using jDate chooser. You can see two ways get dates difference between dates.You can download all source codes and watch video tutorial.

Here include complete java class file.

package daydif;

import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.Month;
import java.time.Period;
import java.time.temporal.ChronoUnit;
import java.util.Date;
import java.util.Locale;
import java.util.concurrent.TimeUnit;
import javax.swing.JTextField;

/**
 *
 * @author ccs
 */
public class Day extends javax.swing.JFrame {
   // private boolean dif;

    /**
     * Creates new form Day
     */
    public Day() {
        initComponents();
    }

    /**
     * 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() {

        jPanel1 = new javax.swing.JPanel();
        fromdate01 = new com.toedter.calendar.JDateChooser();
        todate01 = new com.toedter.calendar.JDateChooser();
        btn01 = new javax.swing.JButton();
        jLabel5 = new javax.swing.JLabel();
        jLabel1 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();
        jLabel4 = new javax.swing.JLabel();
        jTextField1 = new javax.swing.JTextField();
        btn02 = new javax.swing.JButton();
        txt2 = new javax.swing.JTextField();
        jLabel2 = new javax.swing.JLabel();
        fromdate02 = new com.toedter.calendar.JDateChooser();
        todate02 = new com.toedter.calendar.JDateChooser();
        jLabel7 = new javax.swing.JLabel();
        jLabel8 = new javax.swing.JLabel();
        jLabel6 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jPanel1.setBackground(new java.awt.Color(255, 153, 255));
        jPanel1.setLayout(new org.netbeans.lib.awtextra.AbsoluteLayout());

        fromdate01.setDateFormatString("MM/dd/yyyy");
        fromdate01.setFont(new java.awt.Font("Tahoma", 0, 14)); // NOI18N
        jPanel1.add(fromdate01, new org.netbeans.lib.awtextra.AbsoluteConstraints(70, 90, 160, 30));

        todate01.setDateFormatString("MM/dd/yyyy");
        todate01.setFont(new java.awt.Font("Tahoma", 0, 14)); // NOI18N
        jPanel1.add(todate01, new org.netbeans.lib.awtextra.AbsoluteConstraints(280, 90, 160, 30));

        btn01.setFont(new java.awt.Font("Sitka Text", 1, 14)); // NOI18N
        btn01.setText("Day Diff");
        btn01.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btn01ActionPerformed(evt);
            }
        });
        jPanel1.add(btn01, new org.netbeans.lib.awtextra.AbsoluteConstraints(70, 130, 160, 30));

        jLabel5.setFont(new java.awt.Font("Sitka Text", 3, 24)); // NOI18N
        jLabel5.setForeground(new java.awt.Color(0, 51, 204));
        jLabel5.setText("Difference Between Two Dates");
        jPanel1.add(jLabel5, new org.netbeans.lib.awtextra.AbsoluteConstraints(30, 30, -1, -1));

        jLabel1.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(153, 0, 0), 2));
        jPanel1.add(jLabel1, new org.netbeans.lib.awtextra.AbsoluteConstraints(10, 10, 440, 60));

        jLabel3.setFont(new java.awt.Font("Sitka Text", 3, 14)); // NOI18N
        jLabel3.setText("From");
        jPanel1.add(jLabel3, new org.netbeans.lib.awtextra.AbsoluteConstraints(20, 100, -1, -1));

        jLabel4.setFont(new java.awt.Font("Sitka Text", 3, 14)); // NOI18N
        jLabel4.setText("To");
        jPanel1.add(jLabel4, new org.netbeans.lib.awtextra.AbsoluteConstraints(250, 100, -1, -1));

        jTextField1.setFont(new java.awt.Font("Tahoma", 0, 14)); // NOI18N
        jPanel1.add(jTextField1, new org.netbeans.lib.awtextra.AbsoluteConstraints(280, 130, 160, 30));

        btn02.setFont(new java.awt.Font("Sitka Text", 1, 14)); // NOI18N
        btn02.setText("Day Diff");
        btn02.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btn02ActionPerformed(evt);
            }
        });
        jPanel1.add(btn02, new org.netbeans.lib.awtextra.AbsoluteConstraints(80, 310, 150, 30));
        jPanel1.add(txt2, new org.netbeans.lib.awtextra.AbsoluteConstraints(290, 310, 150, 30));

        jLabel2.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(153, 0, 0), 2));
        jPanel1.add(jLabel2, new org.netbeans.lib.awtextra.AbsoluteConstraints(10, 70, 440, 130));

        fromdate02.setDateFormatString("yyyy-MM-dd");
        jPanel1.add(fromdate02, new org.netbeans.lib.awtextra.AbsoluteConstraints(80, 250, 150, 30));

        todate02.setDateFormatString("yyyy-MM-dd");
        jPanel1.add(todate02, new org.netbeans.lib.awtextra.AbsoluteConstraints(290, 250, 150, 30));

        jLabel7.setFont(new java.awt.Font("Sitka Text", 3, 14)); // NOI18N
        jLabel7.setText("From");
        jPanel1.add(jLabel7, new org.netbeans.lib.awtextra.AbsoluteConstraints(30, 250, -1, -1));

        jLabel8.setFont(new java.awt.Font("Sitka Text", 3, 14)); // NOI18N
        jLabel8.setText("To");
        jPanel1.add(jLabel8, new org.netbeans.lib.awtextra.AbsoluteConstraints(250, 250, -1, -1));

        jLabel6.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(153, 0, 0), 2));
        jPanel1.add(jLabel6, new org.netbeans.lib.awtextra.AbsoluteConstraints(10, 220, 440, 170));

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, 457, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, 401, javax.swing.GroupLayout.PREFERRED_SIZE)
        );

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

    private void btn01ActionPerformed(java.awt.event.ActionEvent evt) {                                    
   
         try {  
SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy", Locale.ENGLISH);
                        Date firstDate = fromdate01.getDate();
                        Date secondDate = todate01.getDate();

                        long diffInMillies = Math.abs(secondDate.getTime() - firstDate.getTime());
                        long diff = TimeUnit.DAYS.convert(diffInMillies, TimeUnit.MILLISECONDS);

                       jTextField1.setText(String.valueOf(diff));

} catch (Exception e) {
e.printStackTrace();
}
    }                                  

    private void btn02ActionPerformed(java.awt.event.ActionEvent evt) {                                    
   
                String fromdate=((JTextField)fromdate02.getDateEditor().getUiComponent()).getText();
                String todate=((JTextField)todate02.getDateEditor().getUiComponent()).getText();
             
                LocalDate fday=LocalDate.parse(fromdate);
                LocalDate tday=LocalDate.parse(todate);
             
                Long day_gap=ChronoUnit.DAYS.between(fday, tday);
                txt2.setText(String.valueOf(day_gap));
     
     
     
     
     
    }                                  

 
 
    /**
     * @param args the command line arguments
     */
    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(Day.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(Day.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(Day.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(Day.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 Day().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify                  
    private javax.swing.JButton btn01;
    private javax.swing.JButton btn02;
    private com.toedter.calendar.JDateChooser fromdate01;
    private com.toedter.calendar.JDateChooser fromdate02;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLabel jLabel5;
    private javax.swing.JLabel jLabel6;
    private javax.swing.JLabel jLabel7;
    private javax.swing.JLabel jLabel8;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JTextField jTextField1;
    private com.toedter.calendar.JDateChooser todate01;
    private com.toedter.calendar.JDateChooser todate02;
    private javax.swing.JTextField txt2;
    // End of variables declaration                
}