Operators in Java: Arithmetic, Relational, Logical, and more

Operators in Java: An Overview

Are you a learner looking to Learn Java with a comprehensive guide on Java Operators? Look no further! In this article, we'll explore the different types of operators available in Java and give examples of how they can be used. We'll cover unary and binary operators, assignment and comparison operators, java logical operators, increment/decrement operations, bitwise operations, Java Operators, and Java operators examples much more - so get your programmer's hat on, and let’s dig into some cool coding with operands!

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.

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

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

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 = 20a - b = 10a × b = 75
a ÷ b = 3
a % b = 7

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

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

Example

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
falsetrue
false
true
false
true

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

(6 > 3) && (8 > 6) returns true because both (6 > 3) and (8 > 6) are true.
(6 > 3) && (8 > 6) returns false because the expression (8 < 6) is false
(6 < 3) || (8 > 6) returns true because the expression (8 > 6) is true
(6 > 3) || (8 < 6) returns true because the expression (6 > 3) is true
(6 < 3) || (8 < 6) returns false because both (6 < 3) and (8 < 6) are false 
! (6 == 3) returns true because 6 == 3 is false 
! (6 > 3) returns false because 6 > 3 is true

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 

Example

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

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."

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

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

FAQs

1. 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.

2. 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.

3. What is the ++ operator in Java?

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

4. What is the == operator in Java?

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

5. What are the 3 logical operators in Java?

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

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