Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
3rd Edition
ISBN: 9780134038179
Author: Tony Gaddis, Godfrey Muganda
Publisher: PEARSON
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Expert Solution & Answer
Chapter 14, Problem 4FTE
Explanation of Solution
Given code:
public class MyPanel extends JPanel //Line 1
{
public MyPanel() //Line 2
{
//Constructor code...
}
public void paint(Graphics g) //Line 3
{
//paint method code...
}
}
Drawing on panels:
- User can draw on a panel by simply obtaining a reference to the panels “Graphics” object and then drawing using that object’s method.
- So, the resulting graphics are drawn only on the panel.
- The “paintComponent” method helps for “JPanel”.
- This method is automatically called once the component requires to be redisplayed.
- When this method is called, this method takes the argument of “Graphics” object.
- The header for this method’s is shown below:
public void paintComponent(Graphics g)
- When user override the above method, first the user should call the superclass “paintComponent” method to confirm that the given component is correctly showed...
Expert Solution & Answer
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Students have asked these similar questions
public class DebugBox
{
privateint width;
privateint length;
privateint height;
publicDebugBox()
{
length = 1;
width = 1;
height = 1;
}
publicDebugBox(intwidth,intlength,intheight)
{
width = width;
length = length;
height = height;
}
publicvoidshowData()
{
System.out.println("Width: " + width + "Length: " +
length + "Height: "+ height);
}
publicdoublegetVolume()
{
double vol = length * width * height;
return vol;
}
}
// This class uses a DebugBox class to instantiate two Box objects
public class DebugFour3
{
publicstaticvoidmain(Stringargs[])
{
int width =12,
length = 10,
height = 8;
DebugBox box1 =newDebugBox();
DebugBox box2 =newDebugBox(width, length, height);
System.out.println("The dimensions of the first box are");
box1.showData();
System.out.print("The volume of the first box is ");
showVolume(box1);
System.out.println("The dimensions of the second box are");
box2.showData();
System.out.print("The volume of the second box is ");
showVolume(box2);
}…
Please check the images for the whole question. Thank you.
/* TestCarSensor.java - program to test the CarSensor class.*/public class TestCarSensor{public static void main (String[] args){// 1. declare CarSensor objectsCarSensor generic = new CarSensor(); // default sensor, all values "zero"CarSensor tempCel = new CarSensor("temperature sensor", -50, +300, "C"); // temperature sensor (Celsius)CarSensor speed = new CarSensor("speed sensor", 0, 200, "km/h"); // speed sensor (kms/hour)CarSensor speed2 = new CarSensor("speed sensor 2", 0, 200, "m/h"); // speed sensor 2 (miles/hour)// 2. test changing desc and limitsSystem.out.println ();System.out.println ( generic ); // display generic sensor (zero)generic.setDesc ("special sensor"); // change descriptiongeneric.setLimits (-5,5,"units"); // change limitsSystem.out.println ( generic ); // display generic sensor again// 3. test displaying object (calling .toString() )System.out.println ();System.out.println ( tempCel );System.out.println (…
toString() and equals() Methods
This lab will demonstrate how the toString() and equals() methods work when they are
not overridden. Type up the code and submit the BOTH results.
CODE
public class ObjectToString(
public static void main(String[] args) {
ClassOne co new ClassOne();
ClassTwo ct = new ClassTwo();
}
}
public class Classone {
System.out.println(co);
System.out.println(ct);
System.out.println(co.equals(ct));
public void printfle() {
System.out.println("I am from ClassOne");
}
public class ClassTwo (
public void printMe() {
}
System.out.println("I am from ClassTwo");
Run the program and notice the output.
Chapter 14 Solutions
Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
Ch. 14.1 - Prob. 14.1CPCh. 14.1 - Prob. 14.2CPCh. 14.2 - Prob. 14.3CPCh. 14.2 - Prob. 14.4CPCh. 14.2 - Prob. 14.5CPCh. 14.2 - Prob. 14.6CPCh. 14.2 - Prob. 14.7CPCh. 14.2 - Prob. 14.8CPCh. 14.2 - Prob. 14.9CPCh. 14.2 - Prob. 14.10CP
Ch. 14.2 - Prob. 14.11CPCh. 14.3 - Prob. 14.12CPCh. 14.3 - Prob. 14.13CPCh. 14.3 - Prob. 14.14CPCh. 14.3 - Prob. 14.15CPCh. 14.4 - Prob. 14.16CPCh. 14.4 - Prob. 14.17CPCh. 14.5 - Prob. 14.18CPCh. 14.5 - Prob. 14.19CPCh. 14.5 - Prob. 14.20CPCh. 14.5 - Prob. 14.21CPCh. 14.5 - Prob. 14.22CPCh. 14.5 - Prob. 14.23CPCh. 14.5 - Prob. 14.24CPCh. 14.5 - What Graphics class methods do you use to perform...Ch. 14.6 - Prob. 14.26CPCh. 14.6 - Prob. 14.27CPCh. 14.6 - Prob. 14.28CPCh. 14.6 - Prob. 14.29CPCh. 14.6 - Prob. 14.30CPCh. 14.7 - Prob. 14.31CPCh. 14.7 - Prob. 14.32CPCh. 14.7 - Prob. 14.33CPCh. 14.7 - Prob. 14.34CPCh. 14.8 - Prob. 14.35CPCh. 14.8 - Prob. 14.36CPCh. 14.8 - Prob. 14.37CPCh. 14.8 - Prob. 14.38CPCh. 14 - Prob. 1MCCh. 14 - Prob. 2MCCh. 14 - Prob. 3MCCh. 14 - Prob. 4MCCh. 14 - When using Swing to write an applet, you extend...Ch. 14 - Prob. 6MCCh. 14 - Prob. 7MCCh. 14 - Prob. 8MCCh. 14 - Prob. 9MCCh. 14 - Prob. 10MCCh. 14 - Prob. 11MCCh. 14 - Prob. 12MCCh. 14 - Prob. 13MCCh. 14 - Prob. 14MCCh. 14 - Prob. 15MCCh. 14 - Prob. 16MCCh. 14 - Prob. 17MCCh. 14 - Prob. 18MCCh. 14 - Prob. 19MCCh. 14 - Prob. 20MCCh. 14 - Prob. 21MCCh. 14 - Prob. 22MCCh. 14 - Prob. 23TFCh. 14 - Prob. 24TFCh. 14 - Prob. 25TFCh. 14 - Prob. 26TFCh. 14 - Prob. 27TFCh. 14 - Prob. 28TFCh. 14 - Prob. 29TFCh. 14 - Prob. 30TFCh. 14 - Prob. 31TFCh. 14 - Prob. 32TFCh. 14 - Prob. 33TFCh. 14 - Prob. 34TFCh. 14 - Prob. 35TFCh. 14 - Prob. 1FTECh. 14 - Prob. 2FTECh. 14 - Prob. 3FTECh. 14 - Prob. 4FTECh. 14 - Prob. 5FTECh. 14 - Prob. 6FTECh. 14 - Prob. 1AWCh. 14 - Prob. 2AWCh. 14 - Prob. 3AWCh. 14 - Prob. 4AWCh. 14 - Prob. 5AWCh. 14 - Prob. 6AWCh. 14 - Prob. 1SACh. 14 - Prob. 2SACh. 14 - Prob. 3SACh. 14 - Prob. 4SACh. 14 - Prob. 5SACh. 14 - Prob. 6SACh. 14 - Prob. 7SACh. 14 - Prob. 8SACh. 14 - Prob. 9SACh. 14 - Prob. 1PCCh. 14 - House Applet Write an applet that draws the house...Ch. 14 - Prob. 3PCCh. 14 - Thermometer Applet Write an applet that displays a...Ch. 14 - Prob. 5PCCh. 14 - Prob. 6PCCh. 14 - Prob. 7PCCh. 14 - Prob. 8PCCh. 14 - Prob. 9PC
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