Producer Consumer Pattern using Blocking Queue

How to implement classic concurrency pattern, producer consumer in Java using Blocking Queue

The Producer-Consumer Design pattern is a classic concurrency or multi-threading pattern which reduces coupling between Producer and Consumer by separating Identification of work with Execution of Work.

It’s also a popular pattern for inter-thread communication.

In producer-consumer design pattern, a shared queue is used to control the flow and this separation allows you to code producer and consumer separately.

It also addresses the issue of different timing requirements to produce items or consuming items. By using producer-consumer patterns both Producer and Consumer Thread can work with different speeds.

In the past, I have shared Java Multithreading questions, Java Serialization questions, System Design interview questions and Enum Interview Questions and In this post, we will see what is producer-consumer problem which is a very popular multi-threading interview question.

I will show you how to solve the producer-consumer problem using Blocking Queue and the Benefits of using the Producer-Consumer design pattern.

Btw, if you are a complete beginner to Java threads, I strongly suggest you join a hands-on multithreading course like Multithreading and Parallel Computing in Java from Udemy. It's a great course to learn thread basics It's also very affordable and you can get in just $10 on Udemy sales.

Here is how Producer Consumer Pattern works: