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Java Operator Tutorial

 JAVA OPERATOR  : Operator are among core concept of writing logical condition and business logic in any programming language .

Simplest operators are Arithmetic Operator which we all know : 

+   : Addition
-    : Subtraction 
*   : Multiplication 
/    : Division 
% : Remainder

Now next is Assignment operator

 = : To assign any value to any reference name of any type we use this = operator . What is variable in java already explained in my previous post JAVA BASIC OVERVIEW

Example:  int input1=10;  String name = "My name is John Cena";

Along with this operator we can add Arithmetic Operator  to make assignment  simple 

Example : For int input1= input1 + 10 ; it can be simplified by using combination of Addition and equal to operator like  int input1 += 10;  this is same as input1= input1 + 10 ;

  Same way we can simplified for Subtraction, Multiplication , Division and Remainder like :

-= , *= , /= , %=

Relational Operator , mainly used in case of comparison , if comparison is successful true will be return if not false will be return.

>   : To Compare other value is greater than the comparing value or not.

<   : To Compare other value is less than the comparing value or not.

== : To compare two objects if equal or not.

!=  : To Compare other value is not equal to comparing value.

>= : To Compare other value is equal or greater than the comparing value. 

<= : To Compare other value is equal or less than the comparing value.

Logical operator  :

& : & is use for applying  multiple condition together with AND condition.

|  : | is use for applying  multiple condition together with OR condition.

&& : && is use for applying  multiple condition together with AND condition. Only difference & and && is in case of && if first condition is failed it won't check the next condition while in & all the condition will be check.

|| : || is use for applying  multiple condition together with OR condition. Only difference | and || is in case of || if first condition is failed it won't check the next condition while in | all the condition will be check.

++ : To do pre or post increment on any value.

-- : To do pre or post decrement on any value.

Ternary Operator  : 

?    :   

Example :    10 > 5 ? "YES" : "NO"; 

 Output will be "Yes" as 10 is greater than 5.

                10 > 50 ? "YES" : "NO"; 

Output will be "NO" as 10 is less than 50.


  1. BASIC OVERVIEW OF JAVA (SESSION 1)
  2. PRIMITIVE TYPES AND WRAPPER CLASS (SESSION 2)
  3. JAVA OPERATORS (SESSION 3)
  4. LOOPS IN JAVA (SESSION 4)
  5. NAMING CONVENTION WITH FACTORIAL PROGRAM (SESSION 5)


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