Adding some comments

fifthlab/src/main/java/com/ds/fifthlab/Combination.java

@@ -3,9 +3,16 @@ package com.ds.fifthlab;
 import java.util.Vector;
 
 public class Combination<T, S> {
-    /*
-    Produces all the permutations
-    */
+    /**
+     * This creates an array of the permutations of all the elements choosing 1 from .
+     * 
+     * @param <T> The parameterized type of vec1.
+     * @param <S> The parameterized type of vec2.
+     * @param vec1 The first vector to pull elements from for combinations.
+     * @param vec2 The second vector to pull elements from for combinations.
+     * @return An array of all per
+     * @throws IndexOutOfBoundsException if vec1 and vec2 aren't the same size.
+     */
     public static <T, S> Pair[] getPermutation( Vector<T> vec1, Vector<S> vec2){
         if(vec1.size() != vec2.size()){
             throw new IndexOutOfBoundsException("Vectors not the same size");