Basics of Java | Operators | Day 1

Problem:

Operators are symbols that perform operations on variables and values. For example, + is an operator used for addition, while * is also an operator used for multiplication.

Operators in Java can be classified into 6 types:

• Arithmetic Operators
• Assignment Operators
• Relational Operators
• Logical Operators
• Unary Operators
• Bitwise Operators

References: Click Here.

We will discuss about arithmetic operators and rest you can study from the references mentioned above.

Arithmetic Operators:

Arithmetic operators are used to perform arithmetic operations on variables and data. For example,

a + b;

Here, the + operator is used to add two variables a and b. Similarly, there are various other arithmetic operators in Java.

Operator       Operation
   +           Addition
   -           Subtraction
   *           Multiplication 
   /           Division
   %           Modulo Operation (Remainder after division)

Task:

You are given two integers as input a and b

You need to perform several tasks in the editor below:

• In the variable named "add" store the sum of a and b.
• In the variable named "sub" store the difference of a with b.
• In the variable named "multi" store the multiplication of a and b.
• In the variable named "div" store the division of a by b.

Solution: 

import java.lang.*;

import java.util.*;

public class Main {

    public static void main(String[] args) {

    

    /***Don't change anything here***/

        Scanner inp = new Scanner(System.in);

        int a = inp.nextInt();

        inp.nextLine();

        int b = inp.nextInt();

        inp.nextLine();

        inp.close();

    /*********************************/

    

    /*Perform the task here*/

        

        int add = a+b;

        int sub = a-b;

        int multi = a*b;

        int div = a/b;

        

    /***********************/

    

    /******Don't change anything here******/

        System.out.println(add);

        System.out.println(sub);

        System.out.println(multi);

        System.out.println(div);

    

    }

}