Java | Operators | Tutorial 3

 

Programming Language: Java

Topic: Operators

Video: 3

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Operators

Operators are used to perform operations on variables. These operators are very useful in almost all programs.

The different types of operators are:

• Arithmetic Operators
• Assignment Operators
• Comparison Operators
• Logical Operators
• Bitwise Operators

Arithmetic Operators

Arithmetic Operators are the operators which are used to perform arithmetical/mathematical operations. 

Operator	Name	Description	Example
+	Addition	Adds together two values	x + y
-	Subtraction	Subtracts one value from another	x - y
*	Multiplication	Multiplies two values	x * y
/	Division	Divides one value by another	x / y
%	Modulus	Returns the division remainder	x % y
++	Increment	Increases the value of a variable by 1	++x
--	Decrement	Decreases the value of a variable by 1	--x

Assignment Operator

Assignment operator is used to assign a value to a variable.

Operator	Example	Same As
=	x = 5	x = 5
+=	x += 3	x = x + 3
-=	x -= 3	x = x - 3
*=	x *= 3	x = x * 3
/=	x /= 3	x = x / 3
%=	x %= 3	x = x % 3
&=	x &= 3	x = x & 3
|=	x |= 3	x = x | 3
^=	x ^= 3	x = x ^ 3
>>=	x >>= 3	x = x >> 3
<<=	x <<= 3	x = x << 3

Comparison Operator

Comparison Operators are used to compare two variables or values and returns answer in boolean; i.e. True or False

Operator	Name	Example
==	Equal to	x == y
!=	Not equal	x != y
>	Greater than	x > y
<	Less than	x < y
>=	Greater than or equal to	x >= y
<=	Less than or equal to	x <= y

Logical Operators

Logical operators are used to determine the logic between the variables or values. 

Operator	Name	Description	Example
&&	Logical and	Returns true if both statements are true	x < 5 &&  x < 10
||	Logical or	Returns true if one of the statements is true	x < 5 || x < 4
!	Logical not	Reverse the result, returns false if the result is true	!(x < 5 && x < 10)

Code File: (Operators.java)

public class Operators {
    public static void main(String[] args) {
        int num1 = 12;
        float num2 = 9;

        // Add
        System.out.println(num1 + num2);
        // Sub
        System.out.println(num1 - num2);
        // multiplication
        System.out.println(num1 * num2);
        // division
        System.out.println(num1 / num2);

        // Equal Comparision
        System.out.println(num1 == num2);
        // Not Equal
        System.out.println(num1 != num2);
        // Greater than
        System.out.println(num1 > num2);
        // Less Than
        System.out.println(num1 < num2);
        // Greater than Equal to
        System.out.println(num1 >= num2);
        // Less Than Equal to
        System.out.println(num1 <= num2);
    }
}