What are Operators in Java - Types of Operators in Java ( With Examples )

What are Operators in Java - Types of Operators in Java ( With Examples )

28 Mar 2024
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Operators in Java: An Overview

The operators in Java programming act as potent instruments for data manipulation and control flow are its heart and soul. In this Java tutorial, we'll explore the different types of Java operatorsand give examples of how they can be used.

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What are Java Operators?

Operators in Java, a Java toolkit, are being used as a symbol that performs various operations according to the code. Some Operators of JAVA are "+","-","*","/" etc. The idea of using Operators has been taken from other languages so that it behaves expectedly.

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Types of Operators in Java

There are various types of Operators in Java that are used for operating. These are,

  1. Arithmetic operators in Java
  2. Relational operators in Java
  3. Logical operators in Java
  4. Assignment operator in Java
  5. Unary operator in Java
  6. Bitwise operator in Java
  7. Comparison operator in Java
  8. Ternary operator in Java

Types of Operators in Java

Arithmetic Operators in Java

Arithmetic Operators in Java are particularly used for performing arithmetic operations on given data or variables. There are various types of operators in Java, such as

Operators Operations
+ Addition
- Subtraction
x Multiplication
/ Division
% Modulus

Arithmetic Operators in Java

Arithmetic Operators in Java Example


class Main
{
 public static void main(String[] args)
 {

  // declare variables
  int a = 15, b = 5;

  // addition operator
  System.out.println("a + b = " + (a + b));

  // subtraction operator
  System.out.println("a - b = " + (a - b));

  // multiplication operator
  System.out.println("a * b = " + (a * b));

  // division operator
  System.out.println("a / b = " + (a / b));

  // modulo operator
  System.out.println("a % b = " + (a % b));

 }
}

Output

a + b = 20
a - b = 10
a * b = 75
a / b = 3
a % b = 0

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Assignment Operator in Java

Assignment Operators are mainly used to assign the values to the variable that is situated in Java programming. There are various assignment operators in Java, such as

Operators Examples Equivalent to
= X = Y; X = Y;
+= X += Y; X = X + Y;
-= X -= Y; X = X - Y;
*= X *= Y; X = X * Y;
/= X /= Y; X = X / Y;
%= X %= Y; X = X % Y;

Assignment Operator in Java

Assignment Operator in Java Example


class Main
{
  public static void main(String[] args)
  {

   // create variables
   int a = 5;
   int var;

   // assign value using =
   var = a;

   System.out.println("var using =: " + var);

   // assign value using =+
   var += a;

   System.out.println("var using +=: " + var);

   // assign value using =*
   var *= a;

   System.out.println("var using *=: " + var);

  }
 }

Output

var using =: 5
var using +=: 10
var using *=: 50

Relational Operators in Java

Java relational operators are assigned to check the relationships between two particular operators. There are various relational operators in Java, such as

Operators Description Example
== Is equal to 3 == 5 returns false
!= Not equal to 3 != 5 returns true
> Greater than 3 > 5 returns false
< Less than 3 < 5 returns true
>= Greater than or equal to 3 >= 5 returns false
<= Less than or equal to 3 <= 5 returns true

Relational Operators in Java

Relational Operators in Java Example

Let's look at the working of relational operators in the Java Compiler.

class Main
{
  public static void main(String[] args)
  {

   // create variables
   int a = 7, b = 11;

   // value of a and b
   System.out.println("a is " + a + " and b is " + b);

   // == operator
   System.out.println(a == b); // false

   // != operator
   System.out.println(a != b); // true

   // > operator
   System.out.println(a > b); // false

   // < operator
   System.out.println(a < b); // true

   // >= operator
   System.out.println(a >= b); // false

   // <= operator
   System.out.println(a <= b); // true

  }
 }

Output

a is 7 and b is 11
false
true
false
true
false
true

Logical Operators in Java

Logical Operators in Java check whether the expression is true or false. It is generally used for making any decisions in Java programming. Not only that but Jump statements in Java are also used for checking whether the expression is true or false. It is generally used for making any decisions in Java programming.
OperatorsExampleMeaning
&& [ logical AND ]expression1 && expression2(true) only if both of the expressions are true
|| [ logical OR ]expression1 || expression2(true) if one of the expressions in true
! [ logical NOT ]!expression(true) if the expression is false and vice-versa

Logical Operators in Java

Logical Operators in Java Example


class Main
 {
  public static void main(String[] args)
  {

   // && operator
   System.out.println((6 > 3) && (8 > 6)); // true
   System.out.println((6 > 3) && (8 < 6)); // false

   // || operator
   System.out.println((6 < 3) || (8 > 6)); // true
   System.out.println((6 > 3) || (8 < 6)); // true
   System.out.println((6 < 3) || (8 < 6)); // false

   // ! operator
   System.out.println(!(6 == 3)); // true
   System.out.println(!(6 > 3)); // false

  }
 }

Output

true
false
true
true
false
true
false

Unary Operator in Java

Unary Operators in Java are used in only one operand. There are various types of Unary Operators in Java, such as

Operators Description
+ Unary Plus
- Unary Minus
++ Increment operator
-- Decrement Operator
! Logical complement operator

Unary Operator in Java

Unary Operator in Java Example

We'll see the demonstration of the increment and decrement operator in Java in our Java Playground.

class Main
{
  public static void main(String[] args)
  {

   // declare variables
   int a = 13, b = 13;
   int result1, result2;

   // original value
   System.out.println("Value of a: " + a);

   // increment operator
   result1 = ++a;
   System.out.println("After increment: " + result1);

   System.out.println("Value of b: " + b);

   // decrement operator
   result2 = --b;

   System.out.println("After decrement: " + result2);

  }
 }

Output

Value of a: 13
After increment: 14
Value of b: 13
After decrement: 12

Bitwise Operators in Java

Bitwise Operators in Java are used to assist the performance of the operations on individual bits. There are various types of Bitwise Operators in Java, such as. We will see the working of the Bitwise Operators in the Java Online Compiler.

Operators Descriptions
~ Bitwise Complement
<< Left shift
>> Right shift
>>> Unsigned Right shift
& Bitwise AND
^ Bitwise exclusive OR

Bitwise Operators in Java

Bitwise Operators in Java Example


class Main
 {
  public static void main(String[] args)
  {

   String str = "ScholarHat";
   boolean result;

   // checks if str is an instance of
   // the String class
   result = str instanceof String;

   System.out.println("Is str an object of String? " + result);
  }
 }

Output

Is str an object of String? true

Comparison Operators in Java

To compare two values (or variables), comparison operators are used. This is crucial to programming since it facilitates decision-making and the search for solutions. A comparison's return value is either true or false. These are referred to as "Boolean values."

Operators Operations
== Equal to
!= Not equal
> Greater than
< Less than
>= Greater than or equal to
<=Less than or equal to

Example


public class ComparisonOperatorsExample {
public static void main(String[] args) {
int num1 = 10;
int num2 = 20;

// Equal to (==) operator
boolean isEqual = (num1 == num2);
System.out.println("num1 is equal to num2: " + isEqual);

// Not equal to (!=) operator
boolean isNotEqual = (num1 != num2);
System.out.println("num1 is not equal to num2: " + isNotEqual);

// Greater than (>) operator
boolean isGreaterThan = (num1 > num2);
System.out.println("num1 is greater than num2: " + isGreaterThan);

// Less than (<) operator
boolean isLessThan = (num1 < num2);
System.out.println("num1 is less than num2: " + isLessThan);

// Greater than or equal to (>=) operator
boolean isGreaterThanOrEqual = (num1 >= num2);
System.out.println("num1 is greater than or equal to num2: " + isGreaterThanOrEqual);

// Less than or equal to (<=) operator
boolean isLessThanOrEqual = (num1 <= num2);
System.out.println("num1 is less than or equal to num2: " + isLessThanOrEqual);
}
}

Output

num1 is equal to num2: false
num1 is not equal to num2: true
num1 is greater than num2: false
num1 is less than num2: true
num1 is greater than or equal to num2: false
num1 is less than or equal to num2: true

Ternary Operators in Java

The only conditional operator that accepts three operands is the ternary operator in Java. Java programmers frequently use it as a one-line alternative to the if-then-else expression. The ternary operator can be used in place of if-else statements, and it can even be used to create switch statements with nested ternary operators. The conditional operator uses less space and aids in writing if-else statements as quickly as possible even if it adheres to the same algorithm as an if-else statement

Ternary Operators in Java

Example


public class TernaryOperatorExample {
public static void main(String[] args) {
int num1 = 10;
int num2 = 20;

// Using the ternary operator to find the maximum of two numbers
int max = (num1 > num2) ? num1 : num2;

System.out.println("The maximum number is: " + max);
}
}

Output

The maximum number is: 20

Operator Precedence in Java

Summary

Wow, what a journey we just took together exploring these special Operators in Java with examples! To wrap up, Java operators are an extremely helpful tool to have in your programming arsenal, especially if you're pursuing a Java online course with a certificate. After reading this article and taking the time to learn Java, you should now be more familiar with how each of these operators works and understand the examples provided.

FAQs

Q1. What are operators in Java with examples?

Different operations are carried out on variables by Java operators. Examples include adding two integers together, as in 2 + 3.

Q2. What are the 8 types of operators in Java?

Arithmetic, relational, assignment, logical, bitwise, conditional (ternary), instanceof, and unary operators are the 8 different categories of operators in Java.

Q3. What is the ++ operator in Java?

The Java "++" operator increases a variable's value by 1 and is known as the increment operator.

Q4. What is the == operator in Java?

The Java "==" equality operator is used to determine whether two values are equal.

Q5. What are the 3 logical operators in Java?

&& (logical AND), || (logical OR), and! (logical NOT) are the three logical operators in Java.

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About Author
Shailendra Chauhan (Microsoft MVP, Founder & CEO at Scholarhat by DotNetTricks)

Shailendra Chauhan is the Founder and CEO at ScholarHat by DotNetTricks which is a brand when it comes to e-Learning. He provides training and consultation over an array of technologies like Cloud, .NET, Angular, React, Node, Microservices, Containers and Mobile Apps development. He has been awarded Microsoft MVP 8th time in a row (2016-2023). He has changed many lives with his writings and unique training programs. He has a number of most sought-after books to his name which has helped job aspirants in cracking tough interviews with ease.
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