Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
11th Edition
ISBN: 9780134670942
Author: Y. Daniel Liang
Publisher: PEARSON
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Chapter 20.6, Problem 20.6.2CP

Explanation of Solution

Comparable interface:

Comparable interface offers the sequence of single sorting which offers the compareTo() method to sort the data.

  • It helps the compare the data of same classes.
  • The Comparable interface is present in java.lang package.

Class to implement the Comparable interface is given below:

//Class A is implements the Comparable interface

public class A implements Comparable<A>

{

//Method definition

public int compareTo(A o)

{

//Return the value

return variable;

}

}

Explanation:

In the above code,

  • Define the class with name of “A” which is implements the Comparable interface.
  • This interface contains the compareTo() method to return the value.

Yes”, two instances of the “A” class comparable.

Reason:

  • Comparable interface helps the compare the data of same classes.
  • It offers the compareTo() method to sort the data.

Class to implement the Comparator interface is given below:

/*Class B is implements the Comparator interface with type "B1"...

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Chapter 20 Solutions

Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)

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