In this section, we will learn about **Arithmetic** **Operator** **Precedence **and** Operator Associativity***. *

## Operator Precedence

*Precedence *decides which operator will be evaluated first in a case where more than one operator is present in the same calculation.

Operators | Precedence(High to Low) |
---|---|

postfix | expr++ expr— |

unary | ++expr —expr +expr –expr ~ ! |

multiplicative | * / % |

additive | + – |

shift | << >> >>> |

relational | < > <= >= instanceof |

equality | == != |

bitwise AND | & |

bitwise exclusive OR | ^ |

bitwise inclusive OR | | |

logical AND | && |

logical OR | || |

ternary | ? : |

assignment | = += -= *= /= %= &= ^= |= <<= >>= >>>= |

## Example of Precedence

```
/*
* Here we will see the effect of precedence in operators life
*/
class OperatorPrecedenceExample {
public static void main(String args[]) {
int i = 40;
int j = 80;
int k = 40;
int l = i + j / k;
/*
* In above calculation we are not using any bracket. So which operator
* will be evaluated first is decided by Precedence. As precedence of
* divison(/) is higher then plus(+) as per above table so divison will
* be evaluated first and then plus.
*
* So the output will be 42.
*/
System.out.println("value of L :" + l);
int m = (i + j) / k;
/*
* In above calculation brackets are used so precedence will not come in
* picture and plus(+) will be evaluated first and then divison()/. So
* output will be 3
*/
System.out.println("Value of M:" + m);
}
}
```

## Operator Associativity

If two operators have the same precedence in the calculation then * Associativity* of the operators will be used to decide which operator will be executed first.

## Example of Associativity

```
package jbt.bean;
/*
* Here we will see the effect of precedence in operators life
*/
public class OperatorAssociativityExample {
public static void main(String args[]) {
int i = 40;
int j = 80;
int k = 40;
int l = i / k * 2 + j;
/*
* In above calculation we are not using any bracket. And there are two
* operator of same precedence(divion and multiplication) so which
* operator(/ or *) will be evaluated first is decided by association.
* Associativity of * & / is left to right. So divison will be evaluated
* first then multiplication.
*
* So the output will be 82.
*/
System.out.println("value of L :" + l);
int m = i / (k * 2) + j;
/*
* In above calculation brackets are used so associativity will not come
* in picture and multiply(*) will be evaluated first and then
* divison()/. So output will be 80
*/
System.out.println("Value of M:" + m);
}
}
```

## Operators in Java

Let us discuss each operator individually.

Assignment (=) and Arithmetic operators(+, -, *, /) work the same way as they do in other programming languages, so we will not discuss them here. The precedence for ‘**/**‘ and ‘*****‘ operators is higher than sum(**+**) or minus(**–**) or modular division(**%**)

## atebeni cherotwo

This is the real life i want!!!!!!!!!!!!!1

## Riyaz

Explanation is good.

## Raj

Accidentally came to this site. but not able to leave the site:) nicely written, nice to read. Thanks!!!

## admin

Thanks for your appreciation.

## Sujay

Nice website….(y)

## Vivekanand Gautam

Hi Sujay,

Thanks for your nice comment. 🙂

Regards

## Mayank Srivastava

Bhai.. good work. Will finish up quickly everything , from start to end.

Everything is compiled so nicely , that’s required for each developer to know.

## Nabiafsar

Hi hill

## tushar

same here

## swetha

i love this website….i found a clear description in each and every topic

thanku

## skumar

very nice each and every point explained in detail

## vignesh

i love to study in this website thank you

## Rashmi

very nice website.. very thankful to u ..

## elangovan

Really nice web site for learning java

## randki

Do you mind if I quote a few of your posts as long as I provide credit and sources back to

your webpage? My blog is in the exact same niche as yours and

my visitors would truly benefit from some of the information you provide

here. Please let me know if this okay with you. Thank you!

## admin

Yes, You can include the post as long as you provide the proper credit.

Thanks

## ansarali

easy to learn keep doing guys..

## senthilkumar

good programs..

## vidya

learning java became soo easy.. !!! i love this website..!!! this helps beginners alot.. !! expecting more from you… 🙂

## Saravanan

very simple and easy to learn… thank you

## adithyan

HI gautam, i have a doubt that what are the things which will come outside the main and what are the things will come inside the main method, there is a huge confusion about this and where the program actually starts??? plz kindly help me……………….. waiting for the reply

## Param Gates

I wanted to learn Java. I googled and reached your site. Your syllabus is very easy to understand and can be self learned. Thanks for the site and wishes for your hardwork.

## Amruta

Simple and Clear and Comprehensive.

Needed a quick review of core java and found it here.

## Padmanabha Reddy V

NICE SITE.THE MATTER IS EASY TO UNDERSTAND AND LEARN.

## Akshay

Really Nice Website for Beginners……….(Y)

Every concept explained in detaill and easy to understand way………….

## Vivekanand Gautam

Thanks Akshay 🙂

## Anjali Kriti

Can you explain me the function of this shift >>> operator?

## Vivekanand Gautam

Please check your mail.

## sid

Very nice website for beginners.

## Abdul Razaque Soomro

this website helpful for us and thank u sir

## Abdul Razaque Soomro

this website very helpful for us and sir thank u

## Murali

Hi Sir Really This website is good referral website for beginners

## Aaisha

Could you please explain to me the following expression

int m=i/(k*2)+j;

(precedence doesn’t come into action and that is understood)

While evaluating the expression this is what happens(40/(40*2)+80)=(40/(80)+80)==(1+80)==81

Always the (/) is considered to give us the quotient.

Please do explain the same.

## Parthiban P

Really very useful for beginners…

Just let me know some other same tuorials for SQL and Javascirpt….

Appreciate your concern on this..:-)

## ARUN

i want basic java interview questions …….

## abhishek

very helpful website ….

sir can u plz mail me some shift operator programes.

## aditya vardhan

This site is incredible!!!!!!!…. This is what a beginner is looking for… Sooo easy and worthy…. Kudos Author

## Raj

Plss give output of the programs…

## girish pathrabe

this is called perfect java tutorial. the site is awesome . clearely explain each n every concept

## Yamini Sukhija

Great Work!

## arpitha

In my side opinion is examples will be given on understanding purpose but that examples will be not understandable way.try to get user understandable examples.

## arpitha

good examples are not giving you.

## andrew

Nice coding n commenting …..well structured organized, easy to understand….thanks for big

## nikita

nicely structured and well understood ….thankyou

## rams

Today I stated the learning by seeing this blog, I am the new one to programming. Your blessing is required

## Ankita

Excellent site…it helps a lot.

## Ankita

Excellent site…it helps a lot.

## Jyothy

Very good site. It includes good details about Core Java. I am learning Core Java at the moment. i would like to complete Core Java and also rest of the sections.

Thanks for good compilation with good examples.

## Thilina Sampath

m = i / (k * 2) + j;

there m=80 is incorrect.

## J Singh

Value will be 80 only. Please check once again.

## Thilina Sampath

m = i / (k * 2) + j;

there m=80 is incorrect.

## xxx

m is integer

## saran

nice good…

## J Singh

Good to know that it helped you.

## saran

nice good…