Java Built-in Sorting

Mergesort

import java.util.*;

public class MyBuiltInSortingTest {
    public static void main (String[] args) {
        Random random = new Random();
        List numsToSort = new ArrayList();
        
        for (int i=0; i < 5; i++) {
            numsToSort.add( random.nextInt(100) );
        }
        
        Collection.sort(numsToSort);
        System.out.println("New array after builtin sort: " + numsToSort.toString());
    }
}