Mar 12, 2019 · Mar 11, 2019 · Mar 11, 2019
diff --git a/src/main/java/com/fishercoder/solutions/_693.java b/src/main/java/com/fishercoder/solutions/_693.java
 */

 public class _693 {
    public boolean hasAlternatingBits(int n) {
        String binaryStr = Integer.toBinaryString(n);
        for (int i = 1; i < binaryStr.length(); i++) {
            if (binaryStr.charAt(i - 1) == binaryStr.charAt(i)) {
                return false;
    public static class Solution1 {
        public boolean hasAlternatingBits(int n) {
            String binaryStr = Integer.toBinaryString(n);
            for (int i = 1; i < binaryStr.length(); i++) {
                if (binaryStr.charAt(i - 1) == binaryStr.charAt(i)) {
                    return false;
                }
            }
            return true;
        }
    }
    public static class Solution2 {
        public boolean hasAlternatingBits_oneline(int n) {
            return Integer.bitCount(((n >> 1) ^ n) + 1) == 1;
        }
        return true;
    }
 }
Original file line number	Diff line number	Diff line change
Expand Up		@@ -31,13 +31,20 @@
		*/

		public class _693 {
		public boolean hasAlternatingBits(int n) {
		String binaryStr = Integer.toBinaryString(n);
		for (int i = 1; i < binaryStr.length(); i++) {
		if (binaryStr.charAt(i - 1) == binaryStr.charAt(i)) {
		return false;
		public static class Solution1 {
		public boolean hasAlternatingBits(int n) {
		String binaryStr = Integer.toBinaryString(n);
		for (int i = 1; i < binaryStr.length(); i++) {
		if (binaryStr.charAt(i - 1) == binaryStr.charAt(i)) {
		return false;
		}
		}
		return true;
		}
		}
		public static class Solution2 {
		public boolean hasAlternatingBits_oneline(int n) {
		return Integer.bitCount(((n >> 1) ^ n) + 1) == 1;
		}
		return true;
		}
		}