Question

Write Java code which will create a GUI window on screen. The window has one button: Doggy. When the user selects Doggy, “Bow Bow” should be printed on screen. Justify your syntax.

Answer 1

Main.java

import java.awt.event.*;

import javax.swing.*;

public class Main {

public static void main(String[] args) {

//Creates a new window

JFrame f=new JFrame("Doggy");

/* To display message 'Bow Bow' on button click

label is create */

JLabel l1;

l1=new JLabel();

//To place on the window coordinate and size it set

l1.setBounds(50,150, 100,30);

//Creates button name 'Doggy'

JButton b=new JButton("Doggy");

//To place on the window coordinate and size it set

b.setBounds(50,100,95,30);

//On button click function will called to display message

b.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e){

//This message will be added to created label and display on the window

l1.setText("Bow Bow");

}

});

//button and label are added to created window

f.add(b); f.add(l1);

//Setting size of the window

f.setSize(400,400);

f.setLayout(null);

f.setVisible(true);

}

}

Code Snippet (For Indentation):

Output: