Chapter 14, Problem 4AW

Explanation of Solution

a.

Program:

//import required packages

import javax.swing.*;

import java.awt.*;

//create a class that extends JApplet

public class drawRect extends JApplet {

//init method

public void init() {

//to set the background color to white

getContentPane().setBackground(Color.white);

}

//paint method and g is the Graphics' object

public void paint(Graphics g) {

//calling the superclass

super...

Explanation of Solution

b.

Program:

//import required packages

import javax.swing.*;

import java.awt.*;

//create a class that extends JApplet

public class fillrect extends JApplet {

//init method

public void init() {

//to set the background color to white

getContentPane().setBackground(Color.white);

}

//paint method and g is the Graphics' object

public void paint(Graphics g) {

//calling the superclass

super...

Explanation of Solution

c.

Program:

//import required packages

import javax.swing.*;

import java.awt.*;

//create a class that extends JApplet

public class drawoval extends JApplet {

//init method

public void init() {

//to set the background color to white

getContentPane().setBackground(Color.white);

}

//paint method and g is the Graphics' object

public void paint(Graphics g) {

//calling the superclass

super.paint(g);

//drawing the oval and the enclosing rectangle

g...

Explanation of Solution

d.

Program:

//import required packages

import javax.swing.*;

import java.awt.*;

//create a class that extends JApplet

public class drawline extends JApplet {

//init method

public void init() {

//to set the background color to white

getContentPane().setBackground(Color.white);

}

//paint method and g is the Graphics' object

public void paint(Graphics g) {

//calling the superclass

super.paint(g);

//drawing a red line from (0,6) to (160,175)

g...

Explanation of Solution

e.

Program:

//import required packages

import javax.swing.*;

import java.awt.*;

//create a class that extends JApplet

public class drawstrings extends JApplet {

//init method

public void init() {

//to set the background color to white

getContentPane().setBackground(Color.white);

}

//paint method and g is the Graphics' object

public void paint(Graphics g) {

//calling the superclass

super.paint(g);

//drawing the strings with the specified font

g...

Explanation of Solution

f.

Program:

package sample;

//import required packages

import javax.swing.*;

import java.awt.*;

//create a class that extends JApplet

public class polygon extends JApplet {

//init method

public void init() {

//to set the background color to white

getContentPane().setBackground(Color.white);

}

//paint method and g is the Graphics' object

public void paint(Graphics g) {

//calling the superclass

super.paint(g);

//declare an array for coordinates

int []xcords={10,10,50,50};

int []ycords={10,25,25,10};

//drawing the filled polygon

g...