Mastering Java: The Ultimate Quiz for 'Thinking in Java'

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Dive into the depths of Java with our quiz based on "Thinking in Java, Fourth Edition" by Bruce Eckel. Test your knowledge, solidify concepts, and prepare for certification with challenging questions and insightful feedback.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is 'daemon' thread in Java?

A high-priority thread
A background service thread
A thread that runs in debug mode
A thread that cannot be stopped

The correct answer is: A background service thread

A 'daemon' thread in Java is a type of thread that runs in the background and provides services to other threads. This means that it is not a high-priority thread that has preferential access to CPU resources. Option A is incorrect because while 'daemon' threads may have higher priority than user threads, they are not considered high-priority threads in the traditional sense. Option C is incorrect because 'daemon' threads can run in either debug or non-debug mode. Option D is also incorrect because 'daemon' threads can be stopped by the JVM when all user threads have finished executing.