Converting decimal to binary in java.

Question:

How to convert a decimal to binary in java?

Answer:

This java code is based on the tutorial from:
http://www.wikihow.com/Convert-from-Decimal-to-Binary

Code:

public class DecimalToBinary {
 
   public static void main(String[] args) {
 
      int decimal = Integer.parseInt(args[0]);
      int results = decimal;
      int remainder = decimal;
      String binary = "";
 
      while (results >= 2) {
         remainder = results % 2;
         results = results/2;
         binary = binary + remainder;
      }
      binary = binary + results;
      binary = new StringBuilder(binary).reverse().toString();
 
      System.out.println ("Decimal : " + decimal); 
      System.out.println ("Binary : " + binary); 
   }
}

Output:

$ java DecimalToBinary 156
Decimal : 156
Binary : 10011100

$ java DecimalToBinary 255
Decimal : 255
Binary : 11111111

$ java DecimalToBinary 32
Decimal : 32
Binary : 100000