import java.util.Scanner;

              class DecimaltoB
              {
              String decimalToBinary(int decimalNumber)
              {
              if(decimalNumber == 0)
              {
              return "0";
              }
              StringBuilder binary = new StringBuilder();
              while(decimalNumber > 0)
              {
              int rem = decimalNumber % 2;
              binary.insert(0, rem);
              decimalNumber/=2;
              }
              return binary.toString();
              }
              void dec2bin()
              {
              int num;
              System.out.println(" ");
              System.out.println("Program to convert decimal number to binary number");
              Scanner scan = new Scanner(System.in);
              System.out.print("Enter a decimal number : ");
              num = scan.nextInt();
              String binary = decimalToBinary(num);
              System.out.println("Binary Representation of number is : " + binary);
              }
              public static void main(String args[]){
              DecimaltoB d = new DecimaltoB();
              d.dec2bin();
              }
              }