button color
I consider myself a beginner in programming so I need a little help if that is possible卋elow is the code of my program ?i have designed 100 buttons by using 2D array method?
But the problem that I抦 having is I can抰 figure out how to change the colour of any of the buttons when I click it
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.JButton;
publicclass RobotPathextends JFrame
implements ActionListener{
JPanel buttonPanel, robotPathPanel, directionPanel;
JMenuBar robotMenuBar;
JMenu fileMenu, helpMenu;
JMenuItem exitItem, aboutItem, istructionsItem;
JButton tbtForward, tbtRotate, tbtClear, tbtExit;
JButton[][] tbtPath;
int row = 10, col = 10;
int x = 0, y = 0;
publicstaticvoid main (String[] args){
RobotPath frame =new RobotPath();
frame.setTitle("Robot Path Emulator - Java Application");//frame title
frame.setBounds(250, 90,// setting the position
750, 600);//setting the size
frame.createGUI();
frame.setResizable(false);
frame.setVisible(true);//displaying the window
}
privatevoid createGUI(){
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container window = getContentPane();
window.setLayout(new BorderLayout() );// Set border layout manager
//set the menu bar
robotMenuBar =new JMenuBar();
setJMenuBar(robotMenuBar);
// file menu, with Exit
fileMenu =new JMenu("File");
exitItem =new JMenuItem("Exit");
fileMenu.add(exitItem);
exitItem.addActionListener(this);
robotMenuBar.add(fileMenu);
// help menu, with about, instructions
helpMenu =new JMenu("Help");
aboutItem =new JMenuItem("About");
helpMenu.add(aboutItem);
aboutItem.addActionListener(this);
istructionsItem =new JMenuItem("Istructions");
helpMenu.add(istructionsItem);
istructionsItem.addActionListener(this);
robotMenuBar.add(helpMenu );
//JPanel for the buttons
buttonPanel =new JPanel();
buttonPanel.setLayout(new GridLayout(20, 1));
tbtForward =new JButton("Forward");//Creating buttons: Forward,
buttonPanel.add(tbtForward);//Rotate, Clear, Exite
tbtForward.addActionListener(this);
tbtRotate =new JButton("Rotate");
buttonPanel.add(tbtRotate);
tbtRotate.addActionListener(this);
tbtClear =new JButton("Clear");
buttonPanel.add(tbtClear);
tbtClear.addActionListener(this);
tbtExit =new JButton("Exit");
buttonPanel.add(tbtExit);
tbtExit.addActionListener(this);
//JPanel for the Robot Path Emulator
robotPathPanel =new JPanel();
robotPathPanel.setBackground(Color.white);
JButton[][] tbtPath =new JButton[row][col];// Array to store buttons
for (int x = 0 ; x < row ; x++)
{
for (int y = 0 ; y < col ; y++)
{
tbtPath [x] [y] =new JButton ("(" + x +"," + y +")");
robotPathPanel.add(tbtPath[x][y]);
tbtPath [x] [y].setBackground (Color.green);
tbtPath [x] [y].addActionListener (this);
}
}
//JPanel for the directions
directionPanel =new JPanel();
window.add("East", buttonPanel);
window.add("Center", robotPathPanel);
window.add("South", directionPanel);
}
publicvoid actionPerformed(ActionEvent e){
if(e.getSource() == exitItem){
System.exit(0);
}
if(e.getSource() == tbtExit){
System.exit(0);
}
}
}
