What is Garbage Collection in the context of Java?

Question

A. Java deletes all unused java files on the system.

B. Memory used by the object with no reference is automatically reclaimed.

C. The JVM cleans output of Java program with an error.

D. Any unused package in a program automatically gets deleted.

Answer 1

The correct answer to the question “What is Garbage Collection in the context of Java” is option B; Memory used by the object with no reference is automatically reclaimed. Since Garbage Collection (GC) is a process of eliminating those objects which are no more in usage and thereby help with the memory management to optimize the performance of the programming language. If you wish to learn Java and become a certified professional in it, the best way for that is to enroll in a good Java course. Also, have a look at our free YouTube video on Java Tutorial.

Answer 2

Option (B)

Java garbage collection refers to the automatic process whereby the JVM scans and clears off objects not in use, hence leaving enough space without causing any memory leak. It gives no need to have managed memory, which makes coding simpler and reduces the possibility of errors. Algorithms of the JVM for searching and discarding unreachable objects include Mark and Sweep. It is divided into generations: Young and Old. Other collectors such as G1, Parallel, and ZGC handle GC quite differently depending on their objectives from performance. Even though GC is an automatic process, pauses may occur during its operation. Thus, developers may need to tweak its behavior to optimize application performance.

Answer 3

Java garbage collection refers to the automatic process whereby the JVM scans and clears off objects not in use, hence leaving enough space without causing any memory leak. It gives no need to have managed memory, which makes coding simpler and reduces the possibility of errors. Algorithms of the JVM for searching and discarding unreachable objects include Mark and Sweep. It is divided into generations: Young and Old. Other collectors such as G1, Parallel, and ZGC handle GC quite differently depending on their objectives from performance. Even though GC is an automatic process, pauses may occur during its operation. Thus, developers may need to tweak its behavior to optimize application performance.