von Lena

ArrayManipulation2.java

@@ -0,0 +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)));
+  }
+}