Question

Write a JAVA application allowing user to input a Decimal number and output a Binary number.

Answer 1

//DecimalToBinary.java
import java.util.Scanner;
public class DecimalToBinary {
  public static void printBinary(int value){
    if(value > 0){
      printBinary(value/2);
      System.out.printf("%d",(value%2));
    }
  }

  public static void main(String args[]){
    Scanner scanner = new Scanner(System.in);
    System.out.printf("Enter decimal value: ");
    int num = scanner.nextInt();
    printBinary(num);
  }
}