Chapter 8, Problem 28RE

Explanation of Solution

Writing java program without import statement:

To write a Java program without import statements, the user needs to specify the path names of the classes that are used in the program. Consider the below program,

Java program:

//A component that draws two rectangles.

public class RectangleComponent extends javax.swing.JComponent

{

//define a method paintComponent

public void paintComponent(java.awt.Graphics g)

{

// Recover Graphics2D

java.awt.Graphics2D g2 = (java.awt.Graphics2D) g;

// Construct a rectangle and draw it

java.awt.Rectangle box = new java.awt.Rectangle(5, 10, 20, 30);

g2.draw(box);

// Move rectangle 15 units to the right and 25 units down

box.translate(15, 25);

// Draw moved rectangle

g2.draw(box);

}

}

Explanation:

• Define a class “RectangleComponent” extends “javax...