Let’s Learn Java Threads

Pulsara Sandeepa
Level Up Coding
Published in
6 min readMar 7, 2021

--

One of the main reasons to use threads in Java is to make a task run parallel to another task.

Photo by Alex Palmer on Unsplash

Why we use Threads in Java?

We use Threads to make Java applications faster by doing multiple things at the same time. In technical terms, Thread helps us to achieve parallelism in Java programs. Since the CPU is high-speed and it even contains multiple cores, just one Thread cannot take advantage of all the cores. This means our costly hardware will remain idle for most of the time.

Using multiple threads, we can take full advantage of multiple cores by serving more clients and serving them faster. Since, in today’s fast-paced world, response time matters a lot. And that’s why we have multi-core CPUs. Multi-threading. Multi-threading is one way to exploiting the vast computing power of the CPU in Java application.

Reasons for using Multithreading in Java

Even Java application contains at least one thread called the main thread, which executes your main method. There are more threads used by JVM, e.g. daemon threads which do garbage collections and some other housekeeping works. As application developer, we can also add new user threads to make our application faster and more efficient. Here are a couple of common reasons and scenarios to use multiple threads in…

--

--