Java Guava | isPowerOfTwo() method IntMath Class
The isPowerOfTwo() method of Guava’s IntMath class is used to check if a number is power of two or not. It accepts the number to be checked as a parameter and return boolean value true or false based on whether the number is a power of 2 or not.
public static boolean isPowerOfTwo(int x)
Parameter: This method accepts a single parameter x which of integer type.
Return Value : The method returns true if x represents power of 2 and false if x doesn’t represent power of 2.
Exceptions : The method doesn’t have any exception.
Note : This differs from Integer.bitCount(x) == 1, because Integer.bitCount(Integer.MIN_VALUE) == 1, but Integer.MIN_VALUE is not a power of two.
Example 1 :
63 is not power of 2 1024 is power of 2
Example 2 :
10 is not power of 2 256 is power of 2
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