**Contents**show

## How do you do addition subtraction multiplication and division in Java?

**Java Program to Calculate the Sum, Multiplication, Division and Subtraction of Two Numbers**

- import java.util.Scanner;
- public class Calculate.
- {
- public static void main(String[] args)
- {
- int m, n, opt, add, sub, mul;
- double div;
- Scanner s = new Scanner(System. in);

## How do you add and subtract in Java?

Arithmetic operations are a core function of any programming language. This lesson will describe methods for subtraction in Java, providing working code examples.

…

Subtraction in Java.

Operator | Function |
---|---|

– | Subtract |

+ | Add |

* | Multiply |

/ | Divide |

## How do you multiply and divide in Java?

Since most keyboards don’t have the times and division symbols you learned in grammar school, **Java uses * to mean multiplication** and / to mean division. The syntax is straightforward as you see below. Floats and doubles are multiplied and divided in exactly the same way.

## How do you calculate division in Java?

**Other ways:**

- Cast into a double: int a = 10; int b = 3; System.out.println((double)a/b);
- Multiplying an integer with a double will result in a double and therefor this will also work int a = 10; int b = 3; System.out.println(1.0*a/b);

## What does -= do in Java?

The Assignment Operators

Operator | Description |
---|---|

-= | Subtract AND assignment operator. It subtracts right operand from the left operand and assign the result to left operand. |

*= | Multiply AND assignment operator. It multiplies right operand with the left operand and assign the result to left operand. |

## How do you add two numbers in Java?

**Sum of Two Numbers Using Command Line Arguments in Java**

- public class SumOfNumbers4.
- {
- public static void main(String args[])
- {
- int x = Integer.parseInt(args[0]); //first arguments.
- int y = Integer.parseInt(args[1]); //second arguments.
- int sum = x + y;
- System.out.println(“The sum of x and y is: ” +sum);

## What is command line arguments in Java?

A command-line argument is nothing **but the information that we pass after typing the name of the Java program during the program execution**. These arguments get stored as Strings in a String array that is passed to the main() function. We can use these command-line arguments as input in our Java program.

## Which comes first multiplication or division?

There are no Exponents. **We start with the Multiplication and Division**, working from left to right. NOTE: Even though Multiplication comes before Division in PEMDAS, the two are done in the same step, from left to right. Addition and Subtraction are also done in the same step.

## What are the four rules of maths?

The four rules of mathematics are **adding, subtracting, multiplying and dividing**.

## How do you multiply without using Java?

**Here is the source code of the Java Program to Multiply two numbers without using the multiplication(*) operator.**

- public class P4 {
- int a1,a2,sum=0,i; System.out.println(“Enter the two numbers :”);
- a1=cs.nextInt(); a2=cs.nextInt(); for(i=1;i

## What happens when you divide two integers in Java?

When dividing two integers, Java uses **integer division**. In integer division, the result is also an integer. The result is truncated (the fractional part is thrown away) and not rounded to the closest integer.