Is synchronized keyword necessary, in Java, if everything that is modified in a function is local to that function?

Asked by Last Modified  

6 Answers

Learn Java

Follow 2
Answer

Please enter your answer

Technology Promoter

No, it is not required if you make sure whatever parameters are updated/modified will be done as atomic references/operations. Atomicity is an alternative to syncronizatiom.
Comments
Dislike Bookmark

In some cases It will be necessary. If you want to develop a thread-safe application then definitely you will have to use synchronized keyword.
Comments
Dislike Bookmark

Trainer

Not necessaring, if sharing is not there then synchronization is not required
Comments
Dislike Bookmark

If the function only works with local variables, then synchronized is not required. For example, a simple function for addition - "int add(int a, int b)", which takes two integers as parameter and returns summation of them, is not required to be synchronized. But if the function works on some class level...
read more
If the function only works with local variables, then synchronized is not required. For example, a simple function for addition - "int add(int a, int b)", which takes two integers as parameter and returns summation of them, is not required to be synchronized. But if the function works on some class level properties, global/static variables, or makes some calls to database system, or some I/O operation, then it may be required to make it synchronized to make the program thread safe. read less
Comments
Dislike Bookmark

Trainer

No, not necessary
Comments
Dislike Bookmark

The synchronized keyword is used in two primary contexts: as a method modifier to mark a method that it can only be executed by one thread at a time. by declaring a code block as a critical section – one that’s only available to a single thread at any given point in time
read more
The synchronized keyword is used in two primary contexts: as a method modifier to mark a method that it can only be executed by one thread at a time. by declaring a code block as a critical section – one that’s only available to a single thread at any given point in time read less
Comments
Dislike Bookmark

View 4 more Answers

Related Questions

I have 2.5 years of experience in core Java.. post which I have a 4year gap.. will taking up a course on Java help me get/clear interview calls
yes, you can clear the interview if you have sound technical skills on core java.
Swethaa
While teaching IT Student (MCA / BCA / BTech), I found most of the students are not having good programming skills but they are still running behind to learn .NET / PHP / PYTHON / ANDROID / JAVA. Why is it so? What we should do better to improve a sound programming skills among most of IT Students?
on college days they r learning c,c++ and following faculties are also giving a road map of "programming means" thease languages only , even these are the languages are familier , where you justify them...
Amit Kumar
What is the difference between abstraction and encapsulation?
Encapsulation is wrapping, just hiding properties and methods. Encapsulation is used for hide the code and data in a single unit to protect the data from the outside the world. Class is the best example...
Neval
When we are used the compiler and interpreter? what is the difference between them?
compiler compiles whole page or file at one time but interpreter executes line by line like we do using debugger
Shilpa
What is serialization?
serialization is a storing the state of the object into the file
Shubham

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

10 Cool SQL Optimizations That Do Not Depend On The Cost Model
Today, we don’t want to talk about cost based optimisation, i.e. optimisations that depend on a database’s cost model. We’ll look into much simpler optimisations that can be implemented...

Hasnain

2 0
0
Be prepared to get trained--init
Before starting the training,students must be mentally prepared for acceptance of new knowledge. Students must attend training with open minded forgetting the position they are working.This will help...
S

Smartnub Softsolutions

0 0
0
Java Hash Map internal implementation
1.Hash Map internal implementation: In hash map it will create an array of table (to store the {Key,Value} pair) which is of type java.util.HashMap.EntryThe Entry object contains {hash, key, next, value}...
R

Ravi Kumar

0 0
0
Learn to code from an Engineer || Linear search || Python

Syed Chintu

0 0
0
Class and Objects in Java
Class is a template or a blueprint which is used to describe an object. On other hand Object is a reference of a class which follows all the stuff written inside the class. How about taking the whole tour in the following video

Kalyani Jawade

1 0
0

Recommended Articles

Java: An Object-Oriented Language

Java is the most commonly used popular programming language for the creation of web applications and platform today. Integrated Cloud Applications and Platform Services Oracle says, “Java developers worldwide has over 9 million and runs approximately 3 billion mobile phones”.  Right from its first implication as java 1.0...

Read full article >

Why Java is the Most Popular Programming Language

Designed in a flexible and user-friendly demeanor, Java is the most commonly used programming language for the creation of web applications and platform. It allows developers to “write once, run anywhere” (WORA). It is general-purpose, a high-level programming language developed by Sun Microsystem. Initially known as an...

Read full article >

Some Popular IT Courses in Current Market

In the domain of Information Technology, there is always a lot to learn and implement. However, some technologies have a relatively higher demand than the rest of the others. So here are some popular IT courses for the present and upcoming future: Cloud Computing Cloud Computing is a computing technique which is used...

Read full article >

Why Should You Learn Java !

Java is the most famous programming language till date. 20 years is a big time for any programming language to survive and gain strength. Java has been proved to be one of the most reliable programming languages for networked computers. source:techcentral.com Java was developed to pertain over the Internet. Over...

Read full article >

Find Oracle Java Certification near you
Oracle Java Certification in Bangalore
Oracle Java Certification in Hyderabad
Oracle Java Certification in Pune
Oracle Java Certification in Chennai
Oracle Java Certification in Delhi
Oracle Java Certification in Mumbai
Oracle Java Certification in Kolkata
Oracle Java Certification in Noida
Oracle Java Certification in Gurgaon
Oracle Java Certification in Ghaziabad
Online Java Training

Looking for Java Training Classes?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you