Chapter 20.1, Problem 1SC

Explanation of Solution

Justification:

If two buttons are placed in the northern position of the border layout then the second button that is added only displayed.

Code:

import java.awt.BorderLayout;

import java.awt.Color;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JPanel;

//class definition

publicclass SwingDemo

{

//main method

publicstaticvoid main(String[] args)

{

//create the button1

JButton button = new JButton("Button1!");

//create the button2

JButton button1 = new JButton("Button2!");

//define the panel

JPanel bottomPanel = new JPanel(new BorderLayout());

//add the buttons

bottomPanel.add(button, BorderLayout.NORTH);

bottomPanel.add(button1, BorderLayout.NORTH);

//set the main panel

JPanel mainPanel = new JPanel(new BorderLayout());

//add the components

mainPanel...