Question

How can I write in java to find the first power of 2 larger than n, if n is some number. Thanks

Answer 1

import java.util.Scanner;

public class LargerPower2 {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter a value for n: ");
        int n = in.nextInt();
        int p = 1;
        while (p <= n) {
            p *= 2;
        }
        System.out.println("First power of 2 larger than " + n + " is " + p);
    }
}