Answer :
Everything that needs to be added to this program so that it compiles, runs, and noticeably responds to events.
What is program?
A computer programme is a collection of instructions that can be used as both a verb and a noun. As a verb, it refers to the process of writing a software programme using a programming language. An application, programme, or application software, as a noun, is used to perform a specific task on a computer.
Microsoft PowerPoint, for example, is a programme that allows you to create documents related to your presentation. A browser is also an application that allows us to navigate any website.
The programme instructs the computer to perform a specific task. A computer can operate with the operating system even if it lacks application software (programmes).
//CODE//
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class WhatIsMissing extends Frame implements KeyListener,ComponentListener {
public WhatIsMissing()
{ JFrame jf = new JFrame("WhatIsMissing");
jf.setLayout(new FlowLayout());
JTextField textField;
textField = new JTextField(10);
JButton jb = new JButton("Hello");
textField.addKeyListener(this); //add key listener to handle keyboard events
jb.addComponentListener(this); //add component listener to handle component events
jf.add(textField);
jf.add(jb);
jf.pack();
jf.setSize(400, 400);
jf.setVisible(true);
//to show frame
}
(atherate)Override
public void keyTyped(KeyEvent e){
System.out.println("Key Typed");
}
(atherate)Override public void keyReleased(KeyEvent e){
System.out.println("Key Released");
}
(atherate)Override public void keyPressed(KeyEvent e){
System.out.println("Key Pressed");
}
(atherate)Override public void componentMoved(ComponentEvent e){
System.out.println("Component is Moved");
}
(atherate)Override public void componentResized(ComponentEvent e){
System.out.println("Component is Resized");
}
(atherate)Override public void componentHidden(ComponentEvent e){
System.out.println("Component is Hidden");
}
(atherate)Override public void componentShown(ComponentEvent e){
System.out.println("Component is shown");
}
public static void main(String args[])
{
new WhatIsMissing();
}
}
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