Introduction to Java Programming and Data Structures: Brief Version (11th Global Edition)
11th Edition
ISBN: 9780134671710
Author: Y. Daniel Liang
Publisher: PEARSON
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Textbook Question
Chapter 11.4, Problem 11.4.2CP
True or false? You can override a static method defined in a superclass.
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True or False
A class can implement more than one interface.
Design/code/test a Java program containing an abstract the class absWelcome. This class should
contain:
1. A public abstract void method (you name it) that is empty
2. A public regular method (you name it) that prints "Welcome to "
Next, create a subclass clsHello that extends absWelcome. This class should contain:
• A public regular method (you name it) that prints "Java Programming"
Finally, inside the Main class create an object (you name it) from the clsHello class. Use this new
object reference to:
1. Output "Welcome to " from the abstract class
2. Output "Java Programming" from the subclass
Your output should resemble that shown below
>sh -c javac -classpath
-type f-name '*.java')
java -classpath :targe
Welcome to
Java Programming
When a method in a subclass overrides a method in superclass, it is still possible to call the overridden method using super keyword. If you write super.func() to call the function func(), it will call the method that was defined in the superclass.
You are given a partially completed code in the editor. Modify the code so that the code prints the following text:
Hello I am a motorcycle, I am a cycle with an engine. My ancestor is a cycle who is a vehicle with pedals.
import java.util.*;import java.io.*;
class BiCycle{String define_me(){return "a vehicle with pedals.";}}
class MotorCycle extends BiCycle{String define_me(){return "a cycle with an engine.";}MotorCycle(){System.out.println("Hello I am a motorcycle, I am "+ define_me());
//////code hereString temp=define_me(); //Fix this line and code here/////code ends here
System.out.println("My ancestor is a cycle who is "+ temp );}}class Solution{public static void main(String []args){MotorCycle M=new MotorCycle();}}
Chapter 11 Solutions
Introduction to Java Programming and Data Structures: Brief Version (11th Global Edition)
Ch. 11.2 - True or false? A subclass is subset of a...Ch. 11.2 - What keyword do you use to define a subclass?Ch. 11.2 - What is single inheritance? What is multiple...Ch. 11.3 - What is the output of running the class C in (a)?...Ch. 11.3 - How does a subclass invoke its superclasss...Ch. 11.3 - True or false? When invoking a constructor from a...Ch. 11.4 - True or false? You can override a private method...Ch. 11.4 - True or false? You can override a static method...Ch. 11.4 - How do you explicitly invoke a superclasss...Ch. 11.4 - How do you invoke an overridden superclass method...
Ch. 11.5 - Identify the problems in the following code:...Ch. 11.5 - Prob. 11.5.2CPCh. 11.5 - If a method in a subclass has the same signature...Ch. 11.5 - If a method in a subclass has the same signature...Ch. 11.5 - If a method in a subclass has the same name as a...Ch. 11.5 - Prob. 11.5.6CPCh. 11.7 - Prob. 11.7.1CPCh. 11.8 - Prob. 11.8.1CPCh. 11.8 - Prob. 11.8.2CPCh. 11.8 - Can you assign new int[50], new Integer [50], new...Ch. 11.8 - Prob. 11.8.4CPCh. 11.8 - Show the output of the following code:Ch. 11.8 - Show the output of following program: 1public...Ch. 11.8 - Show the output of following program: public class...Ch. 11.9 - Indicate true or false for the following...Ch. 11.9 - For the GeometricObject and Circle classes in...Ch. 11.9 - Suppose Fruit, Apple, Orange, GoldenDelicious, and...Ch. 11.9 - What is wrong in the following code? 1public class...Ch. 11.10 - Prob. 11.10.1CPCh. 11.11 - Prob. 11.11.1CPCh. 11.11 - Prob. 11.11.2CPCh. 11.11 - Prob. 11.11.3CPCh. 11.11 - Prob. 11.11.4CPCh. 11.11 - Prob. 11.11.5CPCh. 11.12 - Correct errors in the following statements: int[]...Ch. 11.12 - Correct errors in the following statements: int[]...Ch. 11.13 - Prob. 11.13.1CPCh. 11.14 - What modifier should you use on a class so a class...Ch. 11.14 - Prob. 11.14.2CPCh. 11.14 - In the following code, the classes A and B are in...Ch. 11.14 - In the following code, the classes A and B are in...Ch. 11.15 - Prob. 11.15.1CPCh. 11.15 - Indicate true or false for the following...Ch. 11 - Sections 11.211.4 11.1(The Triangle class) Design...Ch. 11 - (Subclasses of Account) In Programming Exercise...Ch. 11 - (Maximum element in ArrayList) Write the following...Ch. 11 - Prob. 11.5PECh. 11 - (Use ArrayList) Write a program that creates an...Ch. 11 - (Shuffle ArrayList) Write the following method...Ch. 11 - (New Account class) An Account class was specified...Ch. 11 - (Largest rows and columns) Write a program that...Ch. 11 - Prob. 11.10PECh. 11 - (Sort ArrayList) Write the following method that...Ch. 11 - (Sum ArrayList) Write the following method that...Ch. 11 - (Remove duplicates) Write a method that removes...Ch. 11 - (Combine two lists) Write a method that returns...Ch. 11 - (Area of a convex polygon) A polygon is convex if...Ch. 11 - Prob. 11.16PECh. 11 - (Algebra: perfect square) Write a program that...Ch. 11 - (ArrayList of Character) Write a method that...Ch. 11 - (Bin packing using first fit) The bin packing...
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