UrbanPro

Learn Java Training from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Search in

What is a deadlock, and how can it be avoided?

Asked by Last Modified  

2 Answers

Learn Java

Follow 2
Answer

Please enter your answer

Experienced Full Stack Developer and Instructor.

A deadlock in computer science occurs when two or more processes are unable to proceed because each is waiting for the other to release a resource. In other words, a set of processes are blocked because each process is holding a resource and waiting for another resource acquired by some other process....
read more

A deadlock in computer science occurs when two or more processes are unable to proceed because each is waiting for the other to release a resource. In other words, a set of processes are blocked because each process is holding a resource and waiting for another resource acquired by some other process. Due to this circular waiting, the processes are unable to progress, and the system comes to a standstill. 

 

Require processes to request all the resources they need at once, or release all acquired resources before requesting new ones. This strategy is often called the "no preemption" or "all or nothing" rule.

read less
Comments

Introduction to Java Training on UrbanPro.com If you're seeking the best online coaching for Java Training, you've come to the right place. UrbanPro.com is a trusted marketplace that connects students with experienced Java Training Tutors and Coaching Institutes. In this guide, we will delve into the...
read more

Introduction to Java Training on UrbanPro.com

If you're seeking the best online coaching for Java Training, you've come to the right place. UrbanPro.com is a trusted marketplace that connects students with experienced Java Training Tutors and Coaching Institutes. In this guide, we will delve into the concept of "deadlocks" in Java and explore how they can be avoided.

Understanding Deadlocks in Java

Deadlocks are a common issue in multi-threaded Java programs. A deadlock occurs when two or more threads are unable to proceed with their execution because each of them is waiting for a resource that is held by another thread in the group. In essence, it's a situation where threads are stuck and cannot make any progress.

Causes of Deadlocks

Deadlocks are typically caused by a combination of the following four conditions:

  1. Mutual Exclusion: Threads must compete for exclusive access to resources.
  2. Hold and Wait: A thread holds one resource and waits for another it requires.
  3. No Preemption: Resources cannot be forcibly taken from a thread.
  4. Circular Wait: Threads form a circular chain where each is waiting for a resource held by the next thread.

Avoiding Deadlocks in Java Training

To ensure your Java code is deadlock-free, follow these strategies:

  1. Use Proper Synchronization: Employ synchronized blocks or methods to ensure that only one thread can access a resource at a time.

  2. Lock Ordering: Establish a consistent order for acquiring locks. This can help prevent circular wait situations.

  3. Timeouts: Implement timeouts for resource acquisition. If a thread cannot obtain a resource within a specified time, it should release any acquired resources and retry or report an error.

  4. Deadlock Detection: Develop mechanisms for detecting deadlocks when they occur and take corrective action. This can be especially useful in larger applications where avoiding deadlocks entirely may be challenging.

  5. Resource Allocation Graph: Visualize and analyze the resource allocation graph to identify potential circular wait scenarios.

  6. Use Higher-Level Concurrency Utilities: Java provides higher-level concurrency utilities like the java.util.concurrent package, which offers tools like ExecutorService, Semaphore, and CountDownLatch that can help simplify concurrency management and reduce the chances of deadlocks.

Conclusion

In your pursuit of Java Training, it's essential to understand the concept of deadlocks and how to avoid them. UrbanPro.com is the ideal platform to connect with experienced Java Training Tutors and Coaching Institutes who can guide you through these intricacies. By choosing the right Java Training expert on UrbanPro, you can gain in-depth knowledge and practical skills to excel in Java programming while learning the best practices for avoiding deadlocks.

read less
Comments

Related Questions

Hi, Can anyone help me on below queries? 1. What makes a class as "Thread safe class" ? 2. equals() method uses 3. Difference between String vs StringBuffer ?
There are three ways to construct thread-safe Java class which has some state: 1. Make it truly immutable 2.Make field volatile. 3.Use a synchronized block
Saurav
How to handle Circular dependency in Spring?
What I would like to do in this post is suggest 3 possible techniques for dealing with this problem. 1. Refactor your code This is probably the simplest and quickest way to fix this problem. Look at...
Saroj
What are the difference between abstract class and Interface?
Abstraction : Hiding unnecessary details of object and shows only essential features of Object to communicate. abstract class : partially defined Object interface :Complete specification of Object class : Complete definition of Object
Ashish

I am a fresher and I want to become a Java developer, so what is necessary to crack the Java interview ? 

Hi Dipesh, understand that Java is a kind of ocean. It is vast. For interview preparation, you can brush up your Core Java Concepts and OOPs concepts and understand how JAVA works and learn the java features...
Dipesh
What is an MVC and why is it important?
MVC (Model-View-Controller) is a software architectural pattern that separates an application into three interconnected components: 1. *Model*: Represents the data and business logic, managing data...
Kirti
0 0
5

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

Ask a Question

Related Lessons

What Is Applet & Its Life Cycle?
What is Applet & its life cycle?Applet is a Java programme that can be embedded into HTML page.Java Applet runs on the java enables web browsers such as Mozilla & Internet Explorer.Applets are...
I

ICreative Solution

0 0
0

Implementation: What Is JPA And JPA?
The basic Java framework to access the database is JDBC. Unfortunately, with JDBC, a lot of hand work is needed to convert a database query result into Java classes. JPA allows us to work with Java classes...

Features Of Java
There is given many features of Java. They are also known as java buzzwords. The Java Features given below are simple and easy to understand. Simple. Object-Oriented. Portable. Platform independent. Secured. Robust. Architecture...
V

Example of DependsOnMethod in TestNG
public class dependsonM { @Test public void login() { System.out.println("login"); } @Test (dependsOnMethods = {"login"}) public void email() { //Intentionally I am failing this testcase Assert.assertTrue(false);...
S

Sarthak C.

0 0
0

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...

Recommended Articles

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 >

Before we start on the importance of learning JavaScript, let’s start with a short introduction on the topic. JavaScript is the most popular programming language in the world, precisely it is the language - for Computers, the Web, Servers, Smart Phone, Laptops, Mobiles, Tablets and more. And if you are a beginner or planning...

Read full article >

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 >

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 >

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
X

Looking for Java Training Classes?

The best tutors for Java Training Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Learn Java Training with the Best Tutors

The best Tutors for Java Training Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more