ProgressBar.java

package Swing;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class ProgressBar {
    public static void main(String[] args) {
        new Progress();

    }
}
class Progress extends JFrame implements ActionListener{
    int i=0;
    JProgressBar p;
    JButton b;
    Timer t;
    public Progress(){
        p=new JProgressBar(0,20);
        add(p);
        b=new JButton("Click Me");
       add(b);
         t=new Timer(250,this);
       b.addActionListener(new ActionListener() {
           @Override
           public void actionPerformed(ActionEvent e) {
               t.start();
           }
       });
         setLayout(new FlowLayout());
          setTitle("Progress");
          setVisible(true);
          setSize(400,400);
          setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }
    @Override
    public void actionPerformed(ActionEvent e) {
        i++;
        p.setValue(i);
        if(i>=20) {
            t.stop();
            new Add();
            dispose();

        }
    }
}