Smallest power of 2 greater than or equal to n | Java program to find smallest power of 2 greater than or equal to n ; Driver Code
import java . io . * ; class GFG { static int nextPowerOf2 ( int n ) { int p = 1 ; if ( n > 0 && ( n & ( n - 1 ) ) == 0 ) return n ; while ( p < n ) p <<= 1 ; return p ; } public static void main ( String args [ ] ) { int n = 5 ; System . out . println ( nextPowerOf2 ( n ) ) ; } }