Java program to handle an action event

 
import java.awt.*;
import java.awt.event.*;

class AEvent extends Frame implements ActionListener
{
    TextField tf;
    
    AEvent()
    {
        tf=new TextField();
        tf.setBounds(60,50,170,20);
        
        Button b=new Button("click me");
        b.setBounds(100,120,80,30);
        b.addActionListener(this);
        
        add(b);
        add(tf);
        
        setSize(300,300);
        setLayout(null);
        setVisible(true);
    }
 
    public void actionPerformed(ActionEvent e)
    {
        tf.setText("Welcome");
    }
 
    public static void main(String args[])
    {
        newAEvent();
    }
}