When I press the button, the button is not working?

Question

I have created simple GUI in java to test the working of the click button. But when I press the button, button is not working.

import javax.swing.*;
import java.awt.event.*;
import java.util.*;

public class rigotechnology implements ActionListener{
    JFrame test;
    JButton Try;

    public void main(){
       JFrame test = new JFrame("TEST FILE");
       test.setLayout(null);
       JButton Try = new JButton("TRY");
       Try.setBounds(50,50,80,80);
       test.add(Try);
       test.setSize(200,200);
       test.setVisible(true);
       Try.addActionListener(this);
    }

    public void actionPerformed(ActionEvent e){
       if(e.getSource()==Try){
          JOptionPane.showMessageDialog(test,"hello");
       }
    }

   public static void main(String args[]){
        rigotechnology o = new rigotechnology();
        o.main();
     }
}

Answer 1

In your method main() , you redefine a local JButton Try, so Try in actionPerformed is always null.

public void main(){
   test = new JFrame("TEST FILE");
   test.setLayout(null);
   Try = new JButton("TRY");
   Try.setBounds(50,50,80,80);
   test.add(Try);
   test.setSize(200,200);
   test.setVisible(true);
   Try.addActionListener(this);
}