Task1bVidhyaMoorthy.java

import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Graphics2D;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;

import javax.swing.JFrame;
import javax.swing.*;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;

/**
 * 
 * @author VidhyaMoorthy
 * Task1b --> Add a menu bar and add a menu called "Color" to change the background of the JFrame 
 * depending on the menu item selected
 *
 */

public class Task1bVidhyaMoorthy extends JFrame implements ActionListener{

	// initialize data members  
	private JPanel contentPane;
	private JMenuBar  menubar;
	private JMenu  color;
	private JMenuItem  red;
	private JMenuItem  blue;
	private JMenuItem  green;
	private JMenuItem  yellow;
	private JMenuItem  black;
	private JMenuItem  pink;
	private JMenuItem  cyan;
	private JMenuItem  magenta;
	private JMenuItem  random;
	/**
	 * Launch the application with a frame class that extends JFrame
	 */
	public static void main(String[] args) {
		Task1bVidhyaMoorthy frame = new Task1bVidhyaMoorthy();
		frame.setVisible(true);
	}
	
	/**
	 * Create the frame that will hold the panel of components that draws the house as a graphic
	 */
	
	public Task1bVidhyaMoorthy() {
		/**
		 * this method initiates the frame class that extends JFrame and calls the paint() method to display the 
		 * house graphic
		 */
		setTitle(" HOUSE "); 
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(200, 200, 550, 400);
		contentPane = new JPanel(); // creating the panel that holds the graphic
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		setContentPane(contentPane);
		contentPane.setLayout(null);
		//Create a menu bar that will hold the color menu
		 menubar = new JMenuBar();
		
		 /**
		 * Creating a menu "color" that holds the list of colors to be changed as background 
		 * when selected
		 */
		 
		 color =  new JMenu("Color");
		 /**
		  * Creating the menu items that represent the colors
		  * adding action listener to each menu item
		  */
		 red = new JMenuItem("Red");
		 red.addActionListener(this);
		 blue = new JMenuItem("Blue");
		 blue.addActionListener(this);
		 green = new JMenuItem("Green");
		 green.addActionListener(this);
		 yellow = new JMenuItem("Yellow");
		 yellow.addActionListener(this);
		 black = new JMenuItem("Black");
		 black.addActionListener(this);
		 pink = new JMenuItem("Pink");
		 pink.addActionListener(this);
		 cyan = new JMenuItem("Cyan");
		 cyan.addActionListener(this);
		 magenta = new JMenuItem("Magenta");
		 magenta.addActionListener(this);
		 random = new JMenuItem("Random");
		 random.addActionListener(this);

		 //register menuItems to menu
		 color.add(red);
		 color.add(blue);
		 color.add(green);
		 color.add(yellow);
		 color.add(black);
		 color.add(pink);
		 color.add(cyan);
		 color.add(magenta);
		 color.add(random);

		 // register color menu in menu bar
		 menubar.add(color);
		 //set menu bar
		 setJMenuBar(menubar);
	}

	/**
	 * this method draws the house graphic by using coordinates on the panel
	 */
	public void paint(Graphics G){
		/**
		 * this method draws the house graphic by using coordinates on the panel
		 */
		  super.paint(G);
		G.setColor(Color.BLACK); // set the color of graphic as black
		 Graphics2D g = (Graphics2D) G;
         g.setStroke(new BasicStroke(10));
         // drawing the house using coordinates(startx,starty,endx,endy)
			g.drawLine(300, 600, 300, 900); 
			g.drawLine(600, 580, 600, 950); 
			g.drawLine(300, 900, 600, 950);							
			g.drawLine(250, 650, 450, 450); 
			g.drawLine(450, 450, 650, 625); 
			g.drawLine(600, 950, 1000, 830);
			g.drawLine(1000, 830, 1000,530);
			g.drawLine(450, 450, 980, 330);
			g.drawLine(650, 625, 1100, 500);
			g.drawLine(980, 330, 1100, 500);
			g.drawLine(750, 685, 850, 660); 
			g.drawLine(750, 645, 850, 620);
			g.drawLine(750, 725, 850, 700);
			g.drawLine(750, 725, 750, 645);
			g.drawLine(850, 700, 850, 620);
			g.drawLine(800, 715, 800, 630);
			g.drawLine(405, 915, 405, 730);
			g.drawLine(465, 925, 465, 730);
			g.drawLine(405, 730, 465, 730); 
			g.drawLine(405, 915, 325, 950); 
			g.drawLine(465, 925, 400, 960); 
			g.drawLine(700, 350, 700, 450); 
			g.drawLine(750, 330, 750, 420);
			g.drawLine(700, 350, 750, 330);
			g.drawOval(800, 320, 80, 85);
			g.drawLine(840, 360, 900, 300);
			g.drawLine(840, 360, 840, 430);
			g.drawOval(420, 600, 40, 50);        
          
	}
	@Override
	public void actionPerformed(ActionEvent arg0) {
		// TODO Auto-generated method stub
		
		// If selected color is red
		if(arg0.getSource()==red){ 
		  this.getContentPane().setBackground(Color.RED);
		  red.setBackground(Color.RED);
		}
		// If selected color is blue
		if(arg0.getSource()==blue){
			  this.getContentPane().setBackground(Color.BLUE);
			  blue.setBackground(Color.BLUE);
  		}
		// If selected color is green
		if(arg0.getSource()==green){
			  this.getContentPane().setBackground(Color.GREEN);
		      green.setBackground(Color.GREEN);
			}
		// If selected color is yellow
		if(arg0.getSource()==yellow){
			  this.getContentPane().setBackground(Color.YELLOW);
		      yellow.setBackground(Color.YELLOW);
			}
		// If selected color is black
		if(arg0.getSource()==black){
			  this.getContentPane().getGraphics().setColor(Color.WHITE);
			  this.getContentPane().setBackground(Color.BLACK);
		      black.setBackground(Color.BLACK);
			}
		// If selected color is pink
		if(arg0.getSource()==pink){
			  this.getContentPane().setBackground(Color.PINK);
		      pink.setBackground(Color.PINK);
	}
		// If selected color is cyan
		if(arg0.getSource()==cyan){
			  this.getContentPane().setBackground(Color.CYAN);
		      cyan.setBackground(Color.CYAN);
			}
		// If selected color is magenta
		if(arg0.getSource()==magenta){
			  this.getContentPane().setBackground(Color.MAGENTA);
		      magenta.setBackground(Color.MAGENTA);
			}
		
		// If selected color is random
		/**
		 * create a list of possible colors and select a random one and 
		 * change the background
		 */
		List<Color> colors = new ArrayList<>();
		colors.add(Color.BLUE);
		colors.add(Color.GREEN);
		colors.add(Color.RED);
		colors.add(Color.YELLOW);
		colors.add(Color.BLACK);
		colors.add(Color.PINK);
		colors.add(Color.CYAN);
		colors.add(Color.MAGENTA);
		Random rand = new Random();
	    Color c =colors.get(rand.nextInt(colors.size()));
				if(arg0.getSource()==random){
					  this.getContentPane().setBackground(c);
				      random.setBackground(c);
					}
	
	repaint();	
	}
}