Operators In java-masterskill

Operators in Java

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Java provides many type of operator , which can be used according to the need . they are classified based on the functionality.

    "In Java Operator Are a symbol that are used for performing specific operations in java , operators make task like Addition, multiplication etc "

 Type of operators 

There are multiple operator in Java language

• Arithmetic operator
• Assignment operator
• Relational operator
• Logical Operator
• Ternary Operator
• Bitwise operator
• Shift operator
• Instance operator

Java Operators 

1. Arithmetic operator
They are used to perform simple arithmetic operations on primitive data types. 

• * : Multiplication
• / : Division
• % : Modulo
• + : Addition
• – : Subtraction

For example :-

 // Arithmetic operators

        int a = 10;

        int b = 3;




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

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

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

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

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

           

Output

a + b = 13
a - b = 7
a * b = 30
a / b = 3
a % b = 1

2.Unary Operator

Unary operators need only one operand. They are used to increment, decrement, or negate a value. 

                             (++) Increment operator 

used for incrementing the value by 1. There are two varieties of increment operators. 

• Post-Increment: Value is first used for computing the result and then incremented.
• Pre-Increment: Value is incremented first, and then the result is computed.

                        (– – ) Decrement operator

 used for decrementing the value by 1. There are two varieties of decrement operators. 

• Post-decrement: Value is first used for computing the result and then decremented.
• Pre-Decrement: The value is decremented first, and then the result is computed.

                             (!)Logical not operator

               used for inverting a boolean value.

For example :-
// Interger declared

        int a = 10;

        int b = 10;




System.out.println("Postincrement : " + (a++));

        System.out.println("Preincrement : " + (++a));

 

        System.out.println("Postdecrement : " + (b--));

        System.out.println("Predecrement : " + (--b));




Output

Postincrement : 10
Preincrement : 12
Postdecrement : 10
Predecrement : 8

3. Assignment Operator
 ‘=’ Assignment operator is used to assign a value to any variable. It has right-to-left associativity,
variable = value;
In many cases, the assignment operator can be combined with other operators to build a shorter version of the statement called a Compound Statement
For example, instead of a = a+5, we can write a += 5. 
4. Relational Operators
These operators are used to check for relations like equality, greater than, and less than. They return boolean results after the comparison
variable relation_operator value
Some of the relational operators are- 
==, Equal to returns true if the left-hand side is equal to the right-hand side.
!=, Not Equal to returns true if the left-hand side is not equal to the right-hand side.
<, less than: returns true if the left-hand side is less than the right-hand side.
<=, less than or equal to returns true if the left-hand side is less than or equal to the right-hand side.
>, Greater than: returns true if the left-hand side is greater than the right-hand side.
>=, Greater than or equal to returns true if the left-hand side is greater than or equal to the right-hand side.
For example 

/ Comparison operators
        int a = 10;
        int b = 3;
        int c = 5;
        System.out.println("a > b: " + (a > b));
        System.out.println("a < b: " + (a < b));
        System.out.println("a >= b: " + (a >= b));
        System.out.println("a <= b: " + (a <= b));
        System.out.println("a == c: " + (a == c));
        System.out.println("a != c: " + (a != c));
Output
a > b: true
a < b: false
a >= b: true
a <= b: false
a == c: false
a != c: true
5. Logical Operators
These operators are used to perform “logical AND” and “logical OR” operations

Conditional operators are:
&&, Logical AND: returns true when both conditions are true.
||, Logical OR: returns true if at least one condition is true.
!, Logical NOT: returns true when a condition is false and vice-versa
6. Ternary operator
The ternary operator is a shorthand version of the if-else statement. It has three operands and hence the name Ternary.
condition ? if true : if false
7. Bitwise Operators
These operators are used to perform the manipulation of individual bits of a number. They can be used with any of the integer types
&, Bitwise AND operator: returns bit by bit AND of input values.
|, Bitwise OR operator: returns bit by bit OR of input values.
^, Bitwise XOR operator: returns bit-by-bit XOR of input values.
~, Bitwise Complement Operator: This is a unary operator which returns the one’s complement representation of the input value, i.e., with all bits inverted.
8. Shift Operators
These operators are used to shift the bits of a number left or right, thereby multiplying or dividing the number by two

<<, Left shift operator: shifts the bits of the number to the left and fills 0 on voids left as a result. Similar effect as multiplying the number with some power of two.
>>, Signed Right shift operator: shifts the bits of the number to the right and fills 0 on voids left as a result. The leftmost bit depends on the sign of the initial number. Similar effect to dividing the number with some power of two.
>>>, Unsigned Right shift operator: shifts the bits of the number to the right and fills 0 on voids left as a result.
instance of operator
The instance of the operator is used for type checking. It can be used to test if an object is an instance of a class


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