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Chapter 20.6, Problem 20.6.4CP

Explanation of Solution

Comparator interface:

Comparator interface offers the sequence of multiple sorting which offers the compare() method to sort the data.

  • It helps the compare the data of different classes.
  • The Comparable interface is present in java.util package.
  • The lambda expression is used in Comparator interface to simply the code.

Create Comparator interface by using the lambda expression is given below:

//Create object for Collection and compare size of e1 and //e2

(e1, e2) -> e1.size() – e2.size()  

Explanation:

In the above code,

  • Create the two objects for Collection such as “e1” and “e2”...

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Chapter 20 Solutions

MyLab Programming with Pearson eText -- Access Card -- for Introduction to Java Programming and Data Structures, Comprehensive Version

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