operators in java | operators in java with example programs ppt

 Operatosr 

Operators are special symbols (characters) that carry out operations on operands (variables and values). For example, + is an operator that performs addition. Operator in java is a symbol that is used to perform operations. For example: +, -, *, / etc.

There are many types of operators in java which are given below:

• Unary Operator
• Arithmetic Operator
• Shift Operator
• Relational Operator
• Bitwise Operator
• Logical Operator
• Ternary Operator
• Assignment Operator.

Java Operator Precedence

operater in java

Unary Operators- The Java unary operators require only one operands. Unary operators are used to perform various operations.

·       Incrementing/decrementing a value by one

·       Negative an expression

·       Inverting the value of a boolean

·        

Operator	Meaning
+	Unary plus (not necessary to use since numbers are positive without using it)
-	Unary minus; inverts the sign of an expression
++	Increment operator; increments value by 1
--	decrement operator; decrements value by 1
!	Logical complement operator; inverts the value of a boolean

Example

class Operator{

public static void main(String agrs[])

{

int x=10;

System.out.println(x++);

System.out.println(++x);

 System.out.println(x--);

System.out.println(--x);

}}

Output

10

12

12

10

Arithmetic Operators- Arithmetic operators are used to perform mathematical operations like addition, subtraction, multiplication etc.

Operator	Meaning
+	Addition (also used for string concatenation)
-	Subtraction Operator
*	Multiplication Operator
/	Division Operator
%	Remainder Operator

Example

class Operator{

public static void main(String agrs[]){

int x=10;

int y=5;

System.out.println(x+y);

System.out.println(x-y);

 System.out.println(x*y);

System.out.println(x/y);

System.out.println(x%y);

}}

Output

15

5

50

2

0

Shift Operator- The java left shift operators << is used to shift all of the bits in value to the left side  and the right shift operators >> is used to move left operands value to right by the number of bits to specified number of times.

Operator	Description
<<	Left Shift
>>	Right Shift
>>>	Unsigned Right Shift

Example

class Operator{

public static void main(String agrs[])

{

System.out.println(10<<2);

System.out.println(10<<3);

 System.out.println(10>>2);

System.out.println(10>>3);

}}

Output

40

80

2

5

Relational Operators- The equality and relational operators determines the relationship between two operands. It checks if an operand is greater than, less than, equal to, not equal to and so on. Depending on the relationship, it results to either true or false.

Operator	Description	Example
==	equal to	5 == 3 is evaluated to false
!=	not equal to	5 != 3 is evaluated to true
>	greater than	5 > 3 is evaluated to true
<	less than	5 < 3 is evaluated to false
>=	greater than or equal to	5 >= 5 is evaluated to true
<=	less then or equal to	5 <= 5 is evaluated to true
Java Equality and Relational Operators

Example

class Operator{

public static void main(String agrs[]){

int x=10;

int y=20;

System.out.println(“x>y-->”+(x>y));

}}

Output

x>y - -> true

Bitwise Operator- To perform bitwise and bit shift operators in Java, these operators are used.

Operator	Description
~	Bitwise Complement
<<	Left Shift
>>	Right Shift
>>>	Unsigned Right Shift
&	Bitwise AND
^	Bitwise exclusive OR
|	Bitwise inclusive OR
Java Bitwise and Bit Shift Operators

Example

class Operator{

public static void main(String agrs[]){

int x=10;

int y=5;

int z=20;

System.out.println(x<y&x++<z);

System.out.println(x);

System.out.println(x>y|x++<z);

System.out.println(x);

}}

Output

false

10

true

11

Logical Operator- The logical operators || (conditional-OR) and && (conditional-AND) operates on boolean expressions. Here's how they work.

Operator	Description	Example
||	conditional-OR; true if either of the boolean expression is true	false || true is evaluated to true
&&	conditional-AND; true if all boolean expressions are true	false && true is evaluated to false
Java Logical Operators

Example

class Operator{

public static void main(String agrs[]){

int x=10;

int y=5;

int z=20;

System.out.println(x<y&&x++<z);

System.out.println(x);

System.out.println(x>y||x++<z);

System.out.println(x);

}}

Output

false

10

true

Ternary Operators- The conditional operator or ternary operator ?: is shorthand for if-then-else statement. The syntax of conditional operator is:

variable = Expression ? expression1 : expression2

·     

    If the Expression is true, expression1 is assigned to variable.

·         If the Expression is false, expression2 is assigned to variable.

Example

class Operator{

public static void main(String agrs[]){

int x=10;

int y=5;

int min=(x<y)?x:y;

System.out.println(min);

}}

Output

5

Assignment Operators- Assignment operators are used in Java to assign values to variables. For example,

int age;

age = 5;

The assignment operator assigns the value on its right to the variable on its left. Here, 5 is assigned to the variable age using = operator.

Example

class Operator{

public static void main(String agrs[]){

int x=10;

int y=20;

a+=4;

b-=4;

System.out.println(x);

System.out.println(y);

}}

Output

14

16