Add reverseArrayChallenge

ReverseArrayChallenge/ReverseArrayChallenge.iml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
+

ReverseArrayChallenge/src/com/ranokuhl/Main.java

@@ -0,0 +1,34 @@
+package com.ranokuhl;
+
+import java.util.Arrays;
+
+public class Main {
+
+    public static void main(String[] args) {
+
+
+        int[] firstArray = {1,2,3,4,5};
+
+        System.out.println("Initial array: " + Arrays.toString(firstArray));
+
+        reverse(firstArray);
+
+        System.out.println("After sort array: " + Arrays.toString(firstArray));
+
+    }
+
+    private static void reverse(int[] array) {
+
+        int maxIndex = array.length-1;
+        int halfLength = array.length/2;
+
+        for (int i = 0; i < halfLength; i++) {
+
+            int temp = array[i];
+
+            array[i] = array[maxIndex -i];
+
+            array[maxIndex -i] = temp;
+        }
+    }
+}