In this program, we will read two integer numbers and calculate the multiplication of input numbers using the "+" operator.

Program/Source Code:

The source code to multiply two numbers using the plus "+" operator is given below. The given program is compiled and executed successfully.

// Java program to multiply two numbers 
// using plus "+" operator

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    int num1 = 0;
    int num2 = 0;
    int mul = 0;

    Scanner myObj = new Scanner(System.in);

    System.out.printf("Enter first number: ");
    num1 = myObj.nextInt();

    System.out.printf("Enter second number: ");
    num2 = myObj.nextInt();

    for (int loop = 1; loop <= num2; loop++)
      mul += num1;

    System.out.printf("Multiplication of %d and %d is: %d\n", num1, num2, mul);
  }
}

Output:

Enter first number: 4
Enter second number: 5
Multiplication of 4 and 5 is: 20

Explanation:

In the above program, we imported the "java.util.Scanner" package to read input from the user. And, we created a public class Main. It contains a static method main().