Question

I am using the Blue Pelican Java textbook and am stuck on the project for Lesson 19. It asks to:
Modify the code below to print two side-by-side columns. The first column should be in ascending order (like the code below will print), and the second column should be in descending order. The output should be:

Ascend   Descend
Agnes    Thomas
Alfred   Mary
Alvin    Lee
Bernard  Herman
Bill     Ezra
Ezra     Bill
Herman   Bernard
Lee      Alvin
Mary     Alfred
Thomas   Agnes

The code currently is:

import java.util.*;
public class Tester
{
    public static void main(String args[])
    {
        String ss[] = {"Bill", "Mary", "Lee", "Agnes", "Alfred", "Thomas", "Alvin", "Bernard", "Ezra", "Herman"};
        Arrays.sort(ss);
        for(String varSs: ss)
            System.out.println(varSs);
    }
}

How do I make the Descending column?
Thanks, -AJ

Answer 1

You could try:

Arrays.sort(ss, Collections.reverseOrder());

import java.util.Collections which you’ve already imported includes the reverseOrder method which will sort in descending order.