Example: Java program to convert decimal to binary using a function

C
C++
C#
Java
Python
PHP
// Java program to convert decimal to binary using a function
import java.util.Scanner;

public class Main {

    // Function to convert decimal to binary and return result
    static String convertToBinary(int num) {
        String binary = "";
        while (num > 0) {
            binary = (num % 2) + binary;
            num = num / 2;
        }
        return binary.equals("") ? "0" : binary;
    }

    public static void main(String[] args) {
        // Step-1 Input
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter a decimal number: ");
        int num = sc.nextInt();

        // Step-2 Convert using function
        String binary = convertToBinary(num);

        // Step-3 Output result
        System.out.println("Binary representation: " + binary);
        sc.close();
    }
}