Java do while loop convert decimal number to binary number

Question

We would like to write a program that prompts the user to enter a decimal integer.

Display its corresponding binary value.

Don't use Java's Integer.toBinaryString(int) in this program. 


import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    Scanner input = new Scanner(System.in);
    System.out.print("Enter a decimal integer: ");
    int dec = input.nextInt();

    System.out.println(decToBin(dec));
  }// w w  w.ja  v a 2 s .c  o m

  private static String decToBin(int dec) {
    //your code here
  }
}





import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    Scanner input = new Scanner(System.in);
    System.out.print("Enter a decimal integer: ");
    int dec = input.nextInt();

    System.out.println(decToBin(dec));
  }

  private static String decToBin(int dec) {
    StringBuilder bin = new StringBuilder();
    do {
      bin.insert(0, dec % 2);
      dec /= 2;
    } while (dec != 0);
    return bin.toString();
  }
}



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