Reverse string

Author: zgpeace

code/LeetCode/src/popular/ReverseString.java

@@ -0,0 +1,26 @@
+package popular;
+
+import java.util.Arrays;
+
+public class ReverseString {
+
+    public void reverseString(char[] s) {
+        int left = 0;
+        int right = s.length - 1;
+        while (left < right) {
+            char temp = s[left];
+            s[left] = s[right];
+            s[right] = temp;
+            left++;
+            right--;
+        }
+    }
+
+    public static void main(String[] args) {
+        char[] s = {'h','e','l','l','o'};
+        System.out.println("Input: " + Arrays.toString(s));
+        new ReverseString().reverseString(s);
+        System.out.println("Output: " + Arrays.toString(s));
+
+    }
+}