Number of leading zeros in binary representation of a given number | Java program of number of leading zeros in binary representation of a given number ; Function to count the no . of leading zeros ; Main function
import java . io . * ; class GFG { static int countZeros ( int x ) { int y ; int n = 32 ; y = x >> 16 ; if ( y != 0 ) { n = n - 16 ; x = y ; } y = x >> 8 ; if ( y != 0 ) { n = n - 8 ; x = y ; } y = x >> 4 ; if ( y != 0 ) { n = n - 4 ; x = y ; } y = x >> 2 ; if ( y != 0 ) { n = n - 2 ; x = y ; } y = x >> 1 ; if ( y != 0 ) return n - 2 ; return n - x ; } public static void main ( String [ ] args ) { int x = 101 ; System . out . println ( countZeros ( x ) ) ; } }