Java is one of the most popular and widely used programming languages.
- Used to develop mobile apps, desktop apps, web apps, web servers, games, and enterprise-level systems.
- Java was invented by James Gosling and Oracle currently owns it. JDK 23 is the latest version of Java.
- Java’s syntax is similar to C/C++.
- Popular platforms like LinkedIn, Amazon, and Netflix rely on Java for their back-end architecture, showcasing its stability and scalability across different environments.
- Popularity is so high that 3 Billion+ devices use Java across the world.
JVM Garbage Collectors are essential for Java memory management. It automatically frees up unused memory to prevent memory leaks and improve performance. Java manages memory through the Java Virtual Machine using a process called garbage collection. Garbage collection automatically frees up memory by removing objects from the Java heap that are no longer needed. Garbage collectors use the Mark and Sweep algorithm to clear unused memory.
In this article, we will learn the types of JVM Garbage Collectors and their implementation details.
Threads in Garbage Collection
1. Controlling Garbage Collection Threads
To control the number of threads used by the garbage collector, we can use multi-threaded collectors like the Parallel Garbage Collector.
