Need to be able to have center panel change images

[Damian Zabielski]

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.io.File;
import javax.imageio.ImageIO;
import javax.swing.*;

import java.io.IOException;
import java.awt.image.BufferedImage;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.imageio.ImageIO;

/*
 * 
 * 
 */

public class DVPWS{
	public static void main(String[] args) throws IOException{
		int choice=1;
		final String a="Pedestrian_Button.jpg";
		final String b="Vehicle_Button.jpg";
		final String c="Boat_Button.jpg";
		final String d="Move_Button.jpg";
		
		
		Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();
	    double screenWidth = dim.getWidth();
	    double screenHeight = dim.getHeight();
	    double newScreenHeight=(.75*screenHeight);
	    double newScreenWidth=(.75*screenWidth);
	    int newScreenWidth1=(int) newScreenWidth;
	    int newScreenHeight1=(int) newScreenHeight;
	    
	    JPanel panel = new JPanel();
		JPanel panel2 = new JPanel();
		JPanel panel3 = new JPanel();
		JPanel panel4 = new JPanel();
		final JPanel panel5=new JPanel();
		
		panel5.setLayout(new BorderLayout());
		PicturePanel p=new PicturePanel(d);
		final PicturePanel p1=new PicturePanel(c);
		PicturePanel p2=new PicturePanel(b);
		PicturePanel p3=new PicturePanel(a);
		
		
		//panel5.getScaledInstance(newScreenWidth1-600, newScreenHeight1-400, 1);
		// String path = "Pedestrian_Button.jpg";
	     //   BufferedImage panel5 = ImageIO.read(new File(path));
	        
	   //     ImageAnimation panel5 = new ImageAnimation(image);


		
		
		panel.setPreferredSize(new Dimension(300, 300));
		panel2.setPreferredSize(new Dimension(300, 300));
		panel3.setPreferredSize(new Dimension(100, 100));
		panel4.setPreferredSize(new Dimension(300, 300));
		
		
		
//****************************************************		
		
		JMenuBar menuBar;
		JMenu menu;
		JMenu menu2;
		JMenuItem menuItem;
		JMenuItem menuItem2;
		JMenuItem menuItem3;
		
		JRadioButtonMenuItem rbMenuItem;
		JCheckBoxMenuItem cbMenuItem;

		//Create the menu bar.
		menuBar = new JMenuBar();

		//Build the first menu.
		menu = new JMenu("Menu");
		menu.setMnemonic(KeyEvent.VK_A);
		menu.getAccessibleContext().setAccessibleDescription(
		        "The only menu in this program that has menu items");
		menuBar.add(menu);

		//a group of JMenuItems
		menuItem2 = new JMenuItem("Options",
		                         KeyEvent.VK_T);
		menuItem2.addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				
			}
		});
		menuItem2.setAccelerator(KeyStroke.getKeyStroke(
		        KeyEvent.VK_1, ActionEvent.ALT_MASK));
		menu.add(menuItem2);
		

		menuItem = new JMenuItem("Exit");
		menuItem.setMnemonic(KeyEvent.VK_B);
		menu.add(menuItem);
		menuItem.addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				System.exit(0);
			}
		});
		


		//Build second menu in the menu bar.
		menu2 = new JMenu("Help");
		menu2.setMnemonic(KeyEvent.VK_N);
		menuBar.add(menu2);
		menuItem3 = new JMenuItem("Info");
	    menu2.add(menuItem3);
menuItem3.addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				JOptionPane.showMessageDialog(null, "Operate the DVPW System by pressing the toggle buttons to watch how the program works.");
			}
		});
//****************************************************

//MyCanvas my=new MyCanvas();
//MyCanvas2 my2=new MyCanvas2();
//my.setBackground(Color.orange);
//panel5.add(my,BorderLayout.CENTER);
//panel5.add(my2,BorderLayout.EAST);
JButton ped= new JButton("Pedestrian");
JButton veh=new JButton("Vehicle Traffic");
JButton boat=new JButton("Boat Traffic");
JButton move=new JButton("Move");

panel2.setLayout(new GridLayout(5,1,5,5));
panel4.setLayout(new GridLayout(5,1,5,5));

panel2.add(new JLabel("Control Unit"));
panel2.add(ped);
ped.addActionListener(new ActionListener() {
	
	@Override
	public void actionPerformed(ActionEvent e) {
		// TODO Auto-generated method stub
		
		try {
			PicturePanel p1=new PicturePanel("Pedestrian_Button.jpg");
		} catch (IOException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
		panel5.repaint();
	}
});


panel2.add(veh);
veh.addActionListener(new ActionListener() {
	
	@Override
	public void actionPerformed(ActionEvent e) {
		// TODO Auto-generated method stub
		JOptionPane.showMessageDialog(null, "Operate the DVPW System by pressing the toggle buttons to watch how the program works.");

	}
});

panel2.add(boat);
boat.addActionListener(new ActionListener() {
	
	@Override
	public void actionPerformed(ActionEvent e) {
		// TODO Auto-generated method stub
		JOptionPane.showMessageDialog(null, "Operate the DVPW System by pressing the toggle buttons to watch how the program works.");

	}
});

panel2.add(move);
move.addActionListener(new ActionListener() {
	
	@Override
	public void actionPerformed(ActionEvent e) {
		// TODO Auto-generated method stub
		JOptionPane.showMessageDialog(null, "Operate the DVPW System by pressing the toggle buttons to watch how the program works.");

	}
});


panel4.add(new JLabel("Test Unit"));
panel4.add(new JButton("Pedestrian"));
panel4.add(new JButton("Warning Lights"));
panel4.add(new JButton("Gates"));
panel4.add(new JButton("Draw Bridge"));

		panel.setBackground(Color.black);
		panel2.setBackground(Color.blue);
		panel3.setBackground(Color.green);
		panel4.setBackground(Color.red);
		
		
		JFrame frame = new JFrame("Drawbridge, Vehicle, and Pedestrian Walkway System");
		frame.setSize(newScreenWidth1, newScreenHeight1); // Set the frame size
		frame.setLocationRelativeTo(null);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		
		frame.setLayout(new BorderLayout() ); 
		frame.setResizable(false);
		frame.setVisible(true);
		 frame.add(menuBar, BorderLayout.NORTH);
		 frame.add(panel2, BorderLayout.EAST);
		 frame.add(panel3, BorderLayout.SOUTH);
		 frame.add(panel4, BorderLayout.WEST);
		 frame.add(panel5, BorderLayout.CENTER);
		 

		 
//*********************************************************
		
		 
		    panel.setVisible(true);
			panel2.setVisible(true);
			panel3.setVisible(true);
			panel4.setVisible(true);
			panel5.setVisible(true);
	}
}
import javax.imageio.ImageIO;
import javax.swing.*;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
 
 
class PicturePanel extends JPanel{
 
	private BufferedImage b ;
 
	public PicturePanel(String a) throws IOException{
		
		Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();
	    double screenWidth = dim.getWidth();
	    double screenHeight = dim.getHeight();
	    double newScreenHeight=(.75*screenHeight);
	    double newScreenWidth=(.75*screenWidth);
	    int newScreenWidth1=(int) newScreenWidth;
	    int newScreenHeight1=(int) newScreenHeight;
	    
		 b=ImageIO.read(new File(a));
		 this.setMinimumSize(new Dimension(newScreenWidth1-800,newScreenHeight1-400));
		 
	}
 
	protected void paintComponent(Graphics g){
		Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();
		 double screenWidth = dim.getWidth();
		    double screenHeight = dim.getHeight();
		    double newScreenHeight=(.75*screenHeight);
		    double newScreenWidth=(.75*screenWidth);
		    int newScreenWidth1=(int) newScreenWidth;
		    int newScreenHeight1=(int) newScreenHeight;
		super.paintComponents(g);
		Graphics2D g2=(Graphics2D)g;
		g2.drawImage(b, 0, 0, newScreenWidth1-600, newScreenHeight1-150, null);
		
	}
}

[Damian Zabielski]

The problem lies in that I do not know how to have each of the right buttons make a new image appear in the center

[Paul Clapham]

Okay, but which part of that are you having a problem with? There are two parts to that question:

How to make a button cause something to happen

How to make an image appear somewhere