Converting decimal to binary in Java

Question

I\'m trying to write a code that converts a number to binary, and this is what I wrote. It gives me couple of errors in Eclipse, which I don\'t understand. What\'s wrong wit

Answer 1

Maybe you don't want to use toBinaryString(). You said that you are learning at the moment, so you can do it yourself like this:

/*
  F:\>java A 123
  123
    1  1  0  1  1  1  1  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
  0  0  0  0  0  0
*/

public class A {
    public static void main(String[] args) {

        int a = Integer.parseInt(args[0]);
        System.out.println(a);

        int bit=1;
        for(int i=0; i<32; i++) {
            System.out.print("  "+(((a&bit)==0)?0:1));
            bit*=2;
        }
    }
}