Java Program to Multiply Two Numbers

Last Updated: 12 August, 2022

On this page, we are going to learn how to write a Java Program to multiply two numbers.

There are two Java programs given below as an example for understanding. In the first program we are passing two numbers into the multiply method, and in the other program we are taking numbers from the user.

multiplication of two numbers = number1 * number2

Let's see the Java Program Implementation.

Program 1: A Java program to multiply two numbers

  public class MultiplyNumbers1 {
    public static void main(String[] args) {
      multiplyTwoNumbers(20, 40);
      System.out.println();	// New Line
      multiplyTwoNumbers(10.50f, 20.75f);
    }
    
    static void multiplyTwoNumbers(float num1, float num2) {
      System.out.println("First Number: " + num1);
      System.out.println("Second Number: " + num2);
      // multiplying two numbers
      float result = num1 * num2;
      System.out.println("Output: " + result);
    }
  }

First Number: 20.0
Second Number: 40.0
Output: 800.0

First Number: 10.5
Second Number: 20.75
Output: 217.875

Program 2: A Java program to multiply two numbers using Scanner Class (User Input)

  
  import java.util.Scanner;
  public class MultiplyNumbers2 {
    public static void main(String[] args) {
      Scanner scanner = new Scanner(System.in);
      
      System.out.print("Enter first number: ");
      float num1 = scanner.nextFloat();
      System.out.print("Enter second number: ");
      float num2 = scanner.nextFloat();
      scanner.close();
      
      // multiplying two numbers
      float result = num1 * num2;
      System.out.println("Output: " + result);
    }
  }