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ArrayManipulation.java

@@ -1,27 +1,26 @@
-
-import java.util.Arrays;
-
-public class ArrayManipulation {
-  public static int[] reverseArray(int[] arr) {
-    for (int i = 0; i < arr.length / 2; i++) {
-      int tmp = arr[i];
-      arr[i] = arr[arr.length - 1 - i];
-      arr[arr.length - 1 - i] = tmp;
-    }
-    return arr;
-  }
-
-  public static int[] squareEach(int[] arr){
-    int[] square = new int[arr.length];
-    for (int i = 0; i < arr.length; i++) {
-      square[i] = arr[i] * arr[i];
-    }
-    return square;
-  }
-  
-  public static void main(String[] args) {
-    int[] arr = { 1, 2, 3, 4, 5 };
-    System.out.println(Arrays.toString(reverseArray(arr)));
-    System.out.println(Arrays.toString(squareEach(arr)));
-  }
-}
+
+import java.util.Arrays;
+public class ArrayManipulation {
+  public static int[] reverseArray(int[] arr) {
+    for (int i = 0; i < arr.length/2; i++) {
+      int tmp = arr[i]; arr[i] = arr[arr.length - 1 - i];
+      arr[arr.length - 1 - i] = tmp;
+    }
+    return arr;
+  }
+
+  public static int[] removeLast(int[] arr) {
+    int[] lastRemoved = new int [arr.length - 1];
+    for (int i = 0; i < lastRemoved.length; i = i + 1) {
+      lastRemoved[i] = arr[i];
+    }
+    return lastRemoved;
+  }
+
+      
+  public static void main(String[] args) {
+    int[] arr = {1,2,3,4,5};
+    System.out.println(Arrays.toString(reverseArray(arr)));
+    System.out.println(Arrays.toString(removeLast(arr)));
+    }
+  }