Java Operators

Java supports a number of operators that allows you to perform various operations on the variables.

The following are the commonly used operators:

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

These operators have precedence over the others and are defined using the following table:

Java Operators

Below are the examples of the Java Operators to explain their working -

1. Java Unary Operator

This operator takes only one operand to perform various operations.

Example

class OperatorExample{  
public static void main(String args[]){  
int x=10;  
System.out.println(x++);//10 (11)  
System.out.println(++x);//12  
System.out.println(x--);//12 (11)  
System.out.println(--x);//10  
int b=10;  
System.out.println(x++ + ++x);//10+12=22  
System.out.println(b++ + b++);//10+11=21  
boolean c=true;  
boolean d=false;  
System.out.println(~b);//20 (positive of total minus, positive starts from 0)  
System.out.println(!c);
System.out.println(!d);//true  
}}  

2. Java Arithmetic Operator

This operator will allow you to perform operations like addition, subtraction, multiplication, and division, which are basic calculations performed on the number variables.

Example

class demo{  
public static void main(String args[]){  
int a=2;  
int b=6;  
System.out.println(a+b);
System.out.println(a-b); 
System.out.println(a*b); 
System.out.println(a/b); 
System.out.println(a%b);  
}}  

3. Java Left Shift Operator

This operator will shift the bits in the value to the left side, which is done in a specified number of times given.

Example

class OperatorExample{  
public static void main(String args[]){  
System.out.println(10<<2);//10*2^2=10*4=40  
System.out.println(10<<3);//10*2^3=10*8=80  
}}

4. Java Right Shift Operator

This operator will shift the value of the left operand to the right by the specified number of times mentioned in the right operand.

Example

class OperatorExample{  
public static void main(String args[]){  
System.out.println(10>>2);//10/2^2=10/4=2  
System.out.println(20>>2);//20/2^2=20/4=5  
}}

5. Java AND Operator

For this operand, both operands need to be true. If the first operand is false, it will not check the second operand.

Example

class OperatorExample{  
public static void main(String args[]){  
int a=10;  
int b=5;  
int c=20;  
System.out.println(a<b&&a<c);//false && true = false  
System.out.println(a<b&&a++<c);//false && true = false  
System.out.println(a);//10 because second condition is not checked  
}}

6. Java OR Operator

For this operator, any of the operands should be true. If the first operand is true, it will not check for the second operand.

Example

class OperatorExample{  
public static void main(String args[]){  
int a=10;  
int b=5;  
int c=20;  
System.out.println(a>b||a<c);//true || true = true  
System.out.println(a>b|a<c);//true | true = true  
}}

7. Java Ternary Operator

Java Ternary operator is the short notation for the if-then-else statement and is commonly used in Java programming. This operator takes three operands.

Example

class demo{  
public static void main(String args[]){  
int a=7;  
int b=9;  
int min=(a<b)?a:b;  
System.out.println(min);  
}}

8. Java Assignment Operator

This operator assigns the values on the right hand of the operand to the variables on the operator's left hand.

Example

class OperatorExample{ 
    public static void main(String args[]){ 
       int a=10; 
       int b=20; 
       a+=2; 
       b-=3; 
       System.out.println(a); 
       System.out.println(b); 
     }
}