Add ReverseStringInArray class to reverse characters

Author: harshithasudhakar

Arrays/Two Pointer/ReverseStringInArray.java

@@ -0,0 +1,16 @@
+class ReverseStringInArray {
+    public void reverseString(char[] s) {
+
+        int i = 0;
+        int j = s.length-1;
+        char temp;
+        while(i<=j){
+            temp = s[j];
+            s[j] = s[i];
+            s[i] = temp;
+
+            j--;
+            i++;
+        }
+    }
+}