Question

How to calculate log base 2 of an integer in Java

Answer 1

public class MyClass {
    public static int log2(int x) {
        return (int)(Math.log(x) / Math.log(2));
    }
    public static void main(String args[]) {
        int n = 100;

        System.out.println(log2(n));
    }
}




/*
run:

6

*/

 

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