Java Garbage Collection Essentials

Managing memory efficiently is one of the most critical aspects of developing high-performance Java applications. Without a solid understanding of how Java handles object lifecycle and cleanup, applications run the risk of memory leaks, performance degradation, and unexpected out-of-memory errors. This course provides a clear, step-by-step written guide to understanding the inner workings of memory management in Java. You will transition from guessing how the JVM handles your objects to confidently optimizing and troubleshooting your code's memory footprint. What you'll learn: Understand core JVM memory structure including the distinct roles of the Stack and the Heap; Learn the lifecycle of a Java object from allocation to dereferencing and collection; Master the differences between various garbage collection algorithms like Serial, Parallel, G1, and modern low-latency collectors; Practice identifying and diagnosing common memory leaks using standard JVM analysis tools; Configure and fine-tune garbage collection behavior using essential JVM command-line flags. We begin with fundamental memory concepts and basic vocabulary before diving into the mechanics of generational garbage collection and practical tuning strategies. This course is designed for Java developers who want to deepen their backend engineering skills, with no prior memory optimization experience required. Start writing faster, more reliable Java applications today.