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Tuesday 21 June 2016

JAVA Operators Tutorials

Hello friends.....
Today I will write about Operatos in Java in the best way so that you can understand this very well.

Q.what are the operators?
Ans.Operators are special symbols, Which applied on single or multiple operands and return some result.

Q.what are the types of Operators in Java?
Ans.there are 3 types of Operators in java.
    1.Unary      
    2.Binary       link:http://spojdev.blogspot.in/2016/06/java-binary-operators-tutorial.html
    3.Ternary      link:http://spojdev.blogspot.in/2016/06/java-ternary-operator.html
                                              
                                            Unary Operators

Definition:operators which are applied on single operand.

Types:
      1.Postfix expr       example: expr++,expr--
      2.Prefix expr        example: ++expr,--expr
      3.logical not        example: !(expr)
      4.bitwise not        example: ~
      5.sign indicator     example: +expr, -expr

Demo:

public class Unary{
 public static void main(String args[]){
 int x=5;

 //postfix expr
 System.out.println("x++ is:"+ x++);
 System.out.println("x-- is:"+ x--);
 System.out.println("x is:"+ x);



 //prefix expr
 System.out.println("++x is:"+ ++x);
 System.out.println("--x is:"+ --x);
 System.out.println("x is:"+ x);

 //logical not
 if(!(x==5)){
  System.out.println("x is not equal to 5");
 }
 else{
  System.out.println("x is equal to 5");
 }


 //bitwise not 
 System.out.println("bitwise not of aa is :" + ~x);



 //sign indicator
 System.out.println("its very simple like " +  -x);
 System.out.println("its very simple like " +  +x);



 }
}



ouput of demo is:

x++ is:5
x-- is:6
x is:5
++x is:6
--x is:5
x is:5
x is equal to 5
bitwise not of aa is :-6
its very simple like -5
its very simple like 5

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