refactor 201

Author: fishercoder1534

src/main/java/com/fishercoder/solutions/_201.java

@@ -5,7 +5,14 @@
  *
  * Given a range [m, n] where 0 <= m <= n <= 2147483647, return the bitwise AND of all numbers in this range, inclusive.
  *
- * For example, given the range [5, 7], you should return 4.
+ * Example 1:
+ * Input: [5,7]
+ * Output: 4
+ *
+ * Example 2:
+ * Input: [0,1]
+ * Output: 0
+ *
  */
 public class _201 {