Java Operators

Operators

Allow us to perform operations on variables and values.

Arithmetic Operators
Assignment Operators
Compound Assignment Operators
Comparison Operators
Logical Operators
Increment and Decrement Operators

Java operator categories

Arithmetic Operators

Used for mathematical calculations.

Addition (+)
Subtraction (-)
Multiplication (*)
Division (/)
Modulus (%)

Arithmetic Operators is used for mathematical calculations, including _______, _______, _______, _______, and _______.

public class Main{
	public static void main(String[] args){
		int a = 12;
		int b = 90;
		
		System.out.println("Addition: " + (a + b));
		System.out.println("Modulus: " + (a % b));
	}
}

OUTPUT:
10

Example of Arithmetic Operators

Assignment Operators

Used to assign values to variables. The = operator is the basic assignment operator.

public class Main{
	public static void main{
	int x = 5;
	x += 4; //Equivalent to x=x+4

	System.out.print(x);
	}
}

OUTPUT:
9

Example of Compound Assignment Operators

Comparison Operators

Used to compare values, returning a boolean result (true or false).

Equal to (==)
Not equal to (-=)
Greater than (>)
Less than (<)
Greater than or Equal to (>=)
Less than pr Equal to (<=)

Comparison operators that are used are ______, _______, _______, ______, _______, _______.

public class Main{
	public static void main(String[] args){
	int age = 29;

	System.out.print(age < 29);	

	}
}

OUTPUT:
False

Example of comparison operators

Logical Operators

Used to combine multiple conditions, returning a boolean result.

AND (&&)
OR (||)
NOT (!)

Logical operator uses different operator including _______, _______, and _______.

AND (&&)

Returns true if both conditions are true.

OR (||)

Returns true if at least one condition is true.

NOT (!)

Inverts the boolean value.

public class main{
	public static void main(String[] args){
	int allowance = 2000;
	boolean ily = true;

	System.out.print(allowance == 2000 && ily);
	}
}

OUTPUT:
true

Example of logical operators

Increment and Decrement Operators

Used to increase or decrease a variable by 1.

Prefix (++x)

Increments the value before use in an expression

Postfix (x++)

Increments the value after use in an expression.

public class Main{
	public static void main(String[] args){
	int x = 3;
	
	System.out.println(--x);
	System.out.println(x++);
	}
}

OUTPUT:
2
2 (count 3)

Example of increment and decrement

Compound Assignment Operator

Shorthand way to update a variable's value by performing an operation on it like addition or multiplication and then assigning the result back to that same variable.

public class Main{
	public static void main(String[] args){
	int x = 3;
	
	System.out.println("Initial Value: " + x);
	}
}

OUTPUT:
Initial Value: 3

Example of Assignment Operator.