29 lines
755 B
Java
29 lines
755 B
Java
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package Maths;
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/**
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* A utility to check if a given number is power of two or not.
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* For example 8,16 etc.
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*/
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public class PowerOfTwoOrNot {
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public static void main(String[] args) {
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assert !checkIfPowerOfTwoOrNot(0);
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assert checkIfPowerOfTwoOrNot(1);
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assert checkIfPowerOfTwoOrNot(8);
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assert checkIfPowerOfTwoOrNot(16);
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assert checkIfPowerOfTwoOrNot(1024);
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}
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/**
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* Checks whether given number is power of two or not.
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*
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* @param number the number to check
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* @return {@code true} if given number is power of two, otherwise {@code false}
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*/
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public static boolean checkIfPowerOfTwoOrNot(int number) {
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return number != 0 && ((number & (number - 1)) == 0);
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}
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}
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