JAVA FULL STACK DEVELOPMENT
Multithreading in Java
Welcome to our Java Multithreading course! In this course, we will start with the very basics of threads and gradually build our understanding of multithreading in Java. We will learn how threads work, how they communicate, how they share data, how to manage them, and how to use Java's concurrency features in real-world applications. Every concept will be explained in simple language with practical examples. Our goal is not just to memorise methods and definitions, but to understand why and when we use them.
Follow the classes in sequence. Each class builds on concepts explained in earlier classes.
Take your time, understand the examples, and practise the exercises. You do not need to rush through the course.
We believe in learning one concept properly before moving to the next.
Part 1 — Understanding Threads
Let's begin at the very beginning. What is a thread? Why do we need multiple threads? How do we create and start them in Java?
Part 2 — Working with Threads
Now that we know how to create threads, let's learn how to control their execution, wait for them, and communicate when a thread needs to stop.
Part 3 — Shared Data and Thread Safety
What happens when multiple threads work with the same data? Why can a simple counter produce incorrect results? Let's understand these problems and learn how Java helps us protect shared data.
- 11. Sharing Data Between Threads
- 12. Understanding Race Conditions
- 13. Synchronization with synchronized Methods
- 14. Synchronization with synchronized Blocks
- 15. Understanding Locks and Object Monitors
- 16. Instance Locks and Class Locks
- 17. The volatile Keyword
- 18. Atomic Variables and AtomicInteger
Part 4 — Communication and Coordination Between Threads
Threads sometimes need to work together. One thread may have to wait for another, or several threads may need to coordinate their work. Let's understand how Java helps them do this.
Part 5 — Managing Threads with the Executor Framework
Creating every thread manually is not always a good approach. Real applications need a better way to manage multiple tasks and threads. This is where the Executor Framework comes in.
- 26. Why We Need the Executor Framework
- 27. Introduction to Executor and ExecutorService
- 28. Thread Pools and Fixed Thread Pools
- 29. Shutting Down an ExecutorService Properly
- 30. Runnable vs. Callable
- 31. Getting Results with Future
- 32. Running Scheduled Tasks with ScheduledExecutorService
- 33. Handling Task Failures and Cancellation
Part 6 — Locks and Concurrent Collections
Java provides additional tools to protect shared data and manage access to resources. Let's explore some useful concurrency utilities and understand when we might need them.
Part 7 — Asynchronous Programming and Modern Java
Let's explore modern Java features that make it easier to execute tasks asynchronously, combine results, and work with lightweight threads.
Part 8 — Reliability, Debugging and Real-World Applications
Finally, let's understand common problems that occur in multithreaded applications, learn how to debug them, and bring everything together in a practical project.
Multithreading may look complicated at first. But once you understand how threads work, the rest of the concepts become much easier to understand.
Take one class at a time. Practise what you learn. And most importantly, enjoy the process.
Happy learning!
Ankit Khera
Full Stack School