Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
3rd Edition
ISBN: 9780134038179
Author: Tony Gaddis, Godfrey Muganda
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Expert Solution & Answer
Chapter 14, Problem 6FTE
Explanation of Solution
Given code:
private class MyMouseListener implements MouseAdapter
{
public void mouseClicked(MouseEvent e)
{
mouseClicked += 1;
}
}
Using adapter class:
- In Java API, an adapter class is another technique for creating a listener class.
- This technique is used to eliminate the need to define empty methods for the events that the user are not interested in.
- User can extend their classes from “MouseAdapter” or “MouseMotionAdapter” classes in the place of implementing “MouseListener” or “MouseMotionListener” interfaces.
- These classes implement the “MouseListener” and “MouseMotionListener” interfaces and gives empty definitions for necessary methods...
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
class Param3 {
public int x;
private void increase(int p)
{
x = x*p; }
public void calculateX(int y) {
increase(y);
}
public int getX() { return x; }
}
// in another class
Param3 q3 = new Param3();
q3.x = 5; q3.calculateX(7);
System.out.println(q3.getX());
what would be the answer for the last two lines ? also above were x = x*p do both x in here are the fields? wouldn't that be cnofusing?
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.
public class MyGenClass {
private T1 name;
private T2 stulD;
private T3 CGPA;
public void setStuData(
){ I/ parameters
name = n;
stulD = d:
CGPA = g;
}
public void printAsString() {
System.out.println(
}
); I/ print all information as string
public static void main(String args||) {
Il Create an object stu by parameters String, Integer, Double
Il Call setStuData() with any values you like
/l Call printAsString()
}
}
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
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- class overload { int x; double y; void add(int a , int b) { x = a + b; } void add(double c , double d) { y = c + d; } overload() { this.x 0; %3D this.y = 0; } %3D } class Overload_methods { public static void main(String args[]) { overload obj int a = 2; double b - 3.2; obj.add(a, a); obj.add(b, b); System.out.println(obj.x + } = new overload(); + obj.y); } #3Run the codearrow_forwardpublic 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); }…arrow_forwardpublic class MyGenClass { private T1 name; private T2 stulD; private T3 CGPA; public void setStuData( ){ l parameters name = n; stulD = d: CGPA = g; public void printAsString() { System.out.printin( '): # print all Information as string public static void main(String args||) { Il Create an object stu by parameters String, Integer, Double II Call setStuData() with any values you like Il Call printAsString()arrow_forward
- Create a subclass named Square from the superclass Geometricobject. Create an instance variable named width with initial value 0. Create a no-arg constructor. Create the another constructor, which has one parameter named wid. ASsign the wid to the instance variable named width. Create the getWidth() method, the setWidth() method. Override the getArea() method. Override the getPerimeter() method. Create a test class named Test to create an instance with wid= 6 from Square class. Call the getArea() and getPermeter() methods to print out the area and perimeter of the square with width=6.arrow_forwardpublic class test{ private static final int MAX = 100; private int[] sco; public test(int[] sco){ this.sco = sco; } private int comAvg() throws IllegalArgumentException{ int sum = 0; for (int i = 0; i < sco.length; i++){ int sc = sco[i]; if (sc < 0 || sc > MAX){ throw new IllegalArgumentException("Score (" + sc + ") is not in the range 0-" + MAX); } sum += sco[i]; } int av = sum / sco.length; return av; } public static void main(String[] args){ test test = new test(new int[] { 50, 70, 81 }); try{ int avgSc = test.comAvg(); char letG; if (avgSc < 60) letG = 'F'; else if (avgSc < 70) letG = 'D'; else if (avgSc < 80) letG = 'C'; else if (avgSc < 90) letG = 'B'; else letG = 'A'; System.out.println("\nAVG Score is " +…arrow_forwardpublic class TestWord { public static void main(String[] args) { /* Word w1 = new Word("Go Cubs Go", "Cub"); System.out.println("New Word object"); System.out.println("Superclass word: " + w1.getSentence()); System.out.println("Subclass word: " + w1.getNoVowelsWord()); System.out.println("Is word a substring of sentence? " + w1.isSubstring()); System.out.println(); Word w2 = new Word("Applepie", "Apple"); System.out.println("New Word object"); System.out.println("Superclass word: " + w2.getSentence()); System.out.println("Subclass word: " + w2.getNoVowelsWord()); System.out.println("Is word a substring of sentence? " + w2.isSubstring()); System.out.println(); System.out.println("w1 and w2 are the same? " + w1.equals(w2)); */ } }arrow_forward
- public class SharedCounter {int counter = 0;public static void main(String [] args) throws InterruptedException{IntCell intCell = new IntCell();//Create incrementer and decrementer objects and pass intCell to the constructor. //Call .start() on both, then .join() on both.//Finally, print the value of intcell: intCell.getVal();} } class IntCell{private int val = 0;synchronized void increment() {val++;}synchronized void decrement() {val--;}int getVal() {return this.val;}} class Incrementer extends Thread{//IntCell reference //Set via parameterized constructor //Override the run method with a for loop that runs 10000 times and calls intCell.increment();} class Decrementer extends Thread{//IntCell reference //Set via parameterized constructor //Override the run method with a for loop that runs 10000 times and calls intCell.decrement();}arrow_forwardX2, Y2------1.arrow_forwardPlease 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 (…arrow_forward
- public class Geometry{public static void main(String[] args){//asks for user's choice Scanner in = new Scanner(System.in);displayMenu();selectOption(choice);System.out.println("Enter your choice (1-3): ");int choice1 = in.nextInt();System.out.println("Thanks for using the Geometry Calculator - Goodbye!");//Prints if input is a number that is not one of the choiceswhile(choice1 < 1 || choice1 > 3 ){System.out.println("Invalid choice. Please enter 1 - 3: ");choice1 = in.nextInt();}}/**Displays the menu*/public static void displayMenu(){System.out.println("Welcome to the Geometry Calculator Application");System.out.println("1. Calculate the Area of a Circle");System.out.println("2. Calculate the Area of a Rectangle");System.out.println("3. Calculate the Area of a Triangle");}/** This method calculates the area of the circle@return the area of the circle*/public static double circle()// calculates the area of the circle{Scanner in = new Scanner(System.in);System.out.println("What is…arrow_forwardPlease encode these classes and run them for inspection/analysis/scrutiny.arrow_forward2. Using Encapsulation concept for Test1 class. package Exam; public class Test1 { private static int index = 0; public int x; Test1(){ index ++; } public static int getlndex () { return index; } public void prints(){ System.out.println("Hi Students!"); } } public class Test2 extends Test1 { @Override public void prints(){ System.out.println("OOP!"); } } public class Main { public static void main(String[] args) { } }arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill Education
Starting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSON
Digital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSON
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Programmable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
Memory Management Tutorial in Java | Java Stack vs Heap | Java Training | Edureka; Author: edureka!;https://www.youtube.com/watch?v=fM8yj93X80s;License: Standard YouTube License, CC-BY