Java Architect Handbook

Apr 30, 2026 · Fundamentals

What Is a Daemon Thread and How Does It Differ From a Normal Thread?

The article explains that a daemon (background) thread in Java supports user threads but does not prevent JVM shutdown; when all non‑daemon threads finish, the JVM exits regardless of daemon threads, covering definitions, usage scenarios, creation methods, pitfalls, detailed comparisons, and typical interview questions.