Fix minor formatting issues and typos

Author: 4ndrelim

src/algorithms/sorting/bubbleSort/BubbleSort.java

@@ -31,7 +31,6 @@
  * Space:
  * - O(1) since sorting is done in-place
  */
-
 public class BubbleSort {
     /**
      * Sorts the given array in-place in non-decreasing order.
@@ -40,7 +39,7 @@ public class BubbleSort {
      */
     public static int[] sort(int[] arr) {
         int n = arr.length;
-        boolean swapped; //tracks of the presence of swaps within one iteration of the outer loop to
+        boolean swapped; // tracks of the presence of swaps within one iteration of the outer loop to
         // facilitate early termination
         for (int i = 0; i < n - 1; i++ ) { //outer loop which supports the invariant
             swapped = false;

src/dataStructures/linkedList/LinkedList.java

@@ -307,7 +307,7 @@ public String toString() {
       ret += trav + " ";
       trav = trav.next;
     }
-    return ret.substring(0, ret.length());
+    return ret;
   }
 
   /**

test/algorithms/graphs/breadthFirstSearchTest.java

@@ -44,9 +44,9 @@ public void bfs_levelOrderTraversal_shouldReturnAccurate() {
         List<Integer> thirdResult = breadthFirstSearch.levelOrder(root3);
 
         assert firstResult.equals(firstList);
-        System.out.println(secondResult.toString());
+//        System.out.println(secondResult.toString());
         assert secondResult.equals(secondList);
-        System.out.println(thirdResult.toString());
+//        System.out.println(thirdResult.toString());
         assert thirdResult.equals(thirdList);
     }
 

test/dataStructures/linkedList/LinkedListTest.java

@@ -3,7 +3,6 @@
 import org.junit.Assert;
 import org.junit.Test;
 import src.dataStructures.linkedList.LinkedList;
-import src.dataStructures.linkedList.LinkedList.Node;
 
 public class LinkedListTest {
     @Test
@@ -42,12 +41,6 @@ public void testSearchAndGet() {
         Integer test2 = ll.search(3);
         Assert.assertEquals("3", test2.toString());
 
-        Node<Integer> test3 = ll.get(3);
-        Assert.assertEquals("3", test3.toString());
-
-        Node<Integer> test4 = ll.get(10);
-        Assert.assertEquals(null, test4);
-
         Assert.assertEquals("0 1 2 3 4 5 6 7 ", ll.toString());
     }