Selection Sort Method - Sorting Array And Return Result Of Each Step

This time I am having difficulties with selection sort method, but not with the method itself (I think). So I need to sort an array and return the result of each step.

This is the main code:

public class Functionality {
public static int[][] selctionsort(int[] a) {
for (int i=0; i<a.length; i++) {
int least = i;
for (int j=i+1; j<a.length; j++)

[Code] ....

And this is the Test folder:

import static org.junit.Assert.assertArrayEquals;
 public class PublicTests {
public static void main(String[] args) {
int[] a = new int[] { 35, 7, 63, 42, 24, 21 };
int[][] b = new int[][] { new int[] { 7, 35, 63, 42, 24, 21 },

[Code] ....

Now I am not sure what should I write in return since the 2nd (test) project has int[][] and in my main project I am working with int [].