Big Java, Binder Ready Version: Early Objects
Big Java, Binder Ready Version: Early Objects
6th Edition
ISBN: 9781119056447
Author: Cay S. Horstmann
Publisher: WILEY
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Chapter 2, Problem 23RE

Explanation of Solution

Calling “paintComponent ()” method:

  • The “paintComponent ()” is a method used in the Java programming language.
  • This method is called whenever the user wants to redraw the diagram.
  • When a window becomes resized or visible, the system automatically calls the “paintComponent ()” method for all area of the screen which have to be redrawn.

Example:

Consider an example for the “paintComponent ()” method as follows:

//include the required header files

import javax.swing.JComponent;

import java.awt.Color;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.geom.Ellipse2D;

//definition of "Ellipse" class

public class Ellipse extends JComponent

{

    //definition of "paintComponent" method

    public void paintComponent(Graphics g)

    {

        //create an object for "Graphics2D"

        Graphics2D g2 = (Graphics2D) g;

/*declare the required variables and call the required methods*/

        double wid = getWidth();

        double ht = getHeight();

        //create an object for "Ellipse2D"

Ellipse2D o = new Ellipse2D...

Explanation of Solution

Occurrence of “paintComponent()” method:

  • A graphic object is the argument to the “paintComponent()”method.

    The “repaint ()” method is used to refresh the screen...

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Chapter 2 Solutions

Big Java, Binder Ready Version: Early Objects

Ch. 2.2 - Prob. 11SCCh. 2.2 - Prob. 12SCCh. 2.2 - Prob. 13SCCh. 2.3 - Prob. 14SCCh. 2.3 - Prob. 15SCCh. 2.3 - Prob. 16SCCh. 2.3 - Prob. 17SCCh. 2.3 - Prob. 18SCCh. 2.3 - Prob. 19SCCh. 2.3 - Prob. 20SCCh. 2.4 - How do you construct a square with center (100,...Ch. 2.4 - Prob. 22SCCh. 2.4 - Prob. 23SCCh. 2.4 - Prob. 24SCCh. 2.4 - Prob. 25SCCh. 2.5 - Prob. 26SCCh. 2.5 - Prob. 27SCCh. 2.5 - Prob. 28SCCh. 2.5 - Prob. 29SCCh. 2.5 - Prob. 30SCCh. 2.6 - Prob. 31SCCh. 2.6 - Prob. 32SCCh. 2.6 - Prob. 33SCCh. 2.6 - Prob. 34SCCh. 2.6 - Prob. 35SCCh. 2.7 - Prob. 36SCCh. 2.7 - Prob. 37SCCh. 2.8 - Prob. 38SCCh. 2.8 - Prob. 39SCCh. 2.9 - Prob. 40SCCh. 2.9 - Prob. 41SCCh. 2.9 - Prob. 42SCCh. 2.9 - Prob. 43SCCh. 2.9 - Prob. 44SCCh. 2.10 - Prob. 45SCCh. 2.10 - Prob. 46SCCh. 2.10 - Prob. 47SCCh. 2.10 - Prob. 48SCCh. 2.10 - Prob. 49SCCh. 2 - Prob. 1RECh. 2 - Prob. 2RECh. 2 - Prob. 3RECh. 2 - Prob. 4RECh. 2 - What is the value of mystery after this sequence...Ch. 2 - What is wrong with the following sequence of...Ch. 2 - Prob. 7RECh. 2 - Give an example of a method that has an argument...Ch. 2 - Write Java statements that initialize a string...Ch. 2 - Write Java statements that initialize a string...Ch. 2 - Write Java statements that initialize a string...Ch. 2 - Explain the difference between an object and an...Ch. 2 - Give the Java code for constructing an object of...Ch. 2 - Prob. 14RECh. 2 - Prob. 15RECh. 2 - Prob. 16RECh. 2 - Prob. 17RECh. 2 - Prob. 18RECh. 2 - Name two accessor methods and two mutator methods...Ch. 2 - Prob. 20RECh. 2 - Explain the difference between an object and an...Ch. 2 - Prob. 22RECh. 2 - Prob. 23RECh. 2 - Prob. 24RECh. 2 - Prob. 25RECh. 2 - Prob. 26RECh. 2 - Prob. 27RECh. 2 - Write an AreaTester program that constructs a...Ch. 2 - Write a PerimeterTester program that constructs a...Ch. 2 - Write a program that initializes a string with...Ch. 2 - Write a program that constructs a rectangle with...Ch. 2 - Prob. 5PECh. 2 - Prob. 6PECh. 2 - Prob. 7PECh. 2 - Prob. 8PECh. 2 - Prob. 9PECh. 2 - Prob. 10PECh. 2 - Prob. 11PECh. 2 - The Random class implements a random number...Ch. 2 - Prob. 13PECh. 2 - Look at the API of the Point class and find out...Ch. 2 - Using the Day class of Worked Example 2.1, write a...Ch. 2 - Prob. 16PECh. 2 - Prob. 17PECh. 2 - Prob. 18PECh. 2 - Prob. 19PECh. 2 - Prob. 20PECh. 2 - Prob. 1PPCh. 2 - Prob. 2PPCh. 2 - Prob. 3PPCh. 2 - Prob. 4PPCh. 2 - Prob. 5PPCh. 2 - Prob. 6PPCh. 2 - Prob. 7PPCh. 2 - Prob. 8PPCh. 2 - Prob. 9PPCh. 2 - Prob. 10PPCh. 2 - Prob. 11PPCh. 2 - Prob. 12PPCh. 2 - Prob. 13PPCh. 2 - Prob. 14PPCh. 2 - Prob. 15PP
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