Java's Integer.numberOfTrailingZeros() method

The Integer.numberOfTrailingZeros() method returns the number of trailing zeros after the lowest order ("rightmost") zero bit in the binary representation of the specified int value.

We take the following decimal as an example.

int dec =　199;

Calculate the binary using Integer.toBinaryString() as shown below-

Integer.toBinaryString(dec);

Let's take a look at the implementation of the Integer.numberOfTrailingZeros() method now.

Example

public class Demo {
　　　public static void main(String []args) {
　　　　　　int dec =　199;
　　　　　　System.out.println("Binary = ");　+　Integer.toBinaryString(dec));
　　　　　　System.out.println("Count of one bits = ");　+　Integer.bitCount(dec));
　　　　　　System.out.println("Number of trailing zeros: ");　+　Integer.numberOfTrailingZeros(dec));
　　　}
}

Output result

Binary =　11000111
Count of one bits =　5
Number of trailing zeros: 0