how to convert decimal numberr to binary number in java code example

Example 1: Java program to convert decimal to binary using toBinaryString and stack

Convert decimal to binary using toBinaryString() method
public class DecimalToBinary
{
   public static void main(String[] args)
   {
      System.out.println("decimal to binary using toBinaryString() 104: ");
      // to binary string java
      System.out.println(Integer.toBinaryString(104));
      System.out.println("\ndecimal to binary using toBinaryString() 554: ");
      // tobinarystring
      System.out.println(Integer.toBinaryString(554));
      System.out.println("\ndecimal to binary using toBinaryString() 644: ");
      System.out.println(Integer.toBinaryString(644));
   }
}

Example 2: Java program to convert decimal to binary using toBinaryString and stack

Convert decimal to binary using stack in java
import java.util.*;
public class DecimalBinaryExample
{
   public static void main(String[] args)
   {
      Scanner sc = new Scanner(System.in);                
      Stack<Integer> numStack = new Stack<Integer>();     
      System.out.println("Please enter a decimal number : ");
      int number = sc.nextInt();
      while(number != 0)
      {
         int a = number % 2;
         numStack.push(a);
         number /= 2;
      }
      System.out.println("Binary number : ");
      while(!(numStack.isEmpty()))
      {
         System.out.print(numStack.pop());
      }
      System.out.println();
      sc.close();
   }
}