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

What are the best books to learn Java?
you can buy any book to learn java but for beginner's Herber Schild is prefer best
Prashant
0 0
6
What is the use of deployment descriptor?
A deployment descriptor describes how a component, module or application should be deployed. A web application’s deployment descriptor describes the classes, resources and configuration of the application...
Monisha
best source to learn java from?
Main source if information on Java is oracle documentation. But it takes your time to read through, a lot more than you expect. Better prefer a trainer who can give what you need.
Himanshu
If you want to Learn Technology of JAVA & .NET, It's better to start from the very beginning, 1. C 2. C++ 3. Data Structure 4. Core JAVA / VB.Net 5. Advance JAVA / Asp.Net "It's better to clear all the stages to achieve the Technology you want to Learn." Thanks & Regards, Prof. Jimmy Thakkar
yes you are right...... always build your building from base....so that you will be master
Jimmy
Does Java support pointers?
Yes and no. . The pointer model is of course supported by Java. But it has become much easier to the developer to handle it. Because Java exposes the concept of pointer in terms of reference variables...
Santosh
0 0
7

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

Ask a Question

Related Lessons

Mastering in Java Programming
Core java topics What is Java?Execution Model Of JavaBytecodeHow to Get Java?A First Java ProgramCompiling and Interpreting ApplicationsThe JDK Directory StructureUsing Eclipse Data types and Variables What...

Rajeev Majumdar

1 0
0
Class, Object and Methods in JAVA
Lesson-1: Class, Object and Methods of Java can be compared with body, heart and brain. Without these 3 things, Java does not exist. If you Google the above 3 items, you will find many definitions. But...

Debabrata Mandal

0 0
0
Advance Java
1) Servlet • Basics of Servlet • Servlet Request • Servlet Collaboration • Servlet Config • Servlet Context • Attribute • Session Tracking • Event and Listener •...
A

Ashok Kumar K

0 0
0
Interview Tip : Q1) Why Strings are immutable in java ? What happen if it was mutable in java?
As we all know that Strings in java are immutabe in nature, now the question comes why the creator made it immutable in nature, although this field used maximum in any java program. The answer to this...

Gaurav

0 0
0
JAVA Online Training
What is Java? Java is a technology developed by James Gosling at Sun Microsystems, Sun Microsystems is now a part of Oracle Corporation. This is one of the most powerful & securable language used to...

Websoft Technologies

0 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