Garbage collection in Java refers to the process by which Java programs get their own portions of the memory at their request. The garbage collection determines what memory a program needs and automatically allocates memory to the Java program at its request. Garbage collection also works by determining if the allocated memory is no longer needed by a program and recycle it for reuse by other Java programs.
Simply put, garbage collection is an automatic process that allows Java programs to perform memory management. The importance of this cannot be overemphasized, especially for programmers, as they will no longer have any need to constantly reserve portions of the memory to Java programs that are running. As a result, programmers will no longer have to deal with problems that come through application program bugs. For garbage collection to achieve this, it will first stop the program from running in order to free up memory.
In Java, garbage collection is the process that is carried out by the Java programs. This process involves the programs carrying out an automatic memory management. All of the programs on Java are compiled in bytecode, which can be run on JVM.
This stands for Java Virtual machine. With that, objects are created and take up memory. Over time, some of those objects are no longer needed. The garbage collector comes in, identifies the objects that are no longer used and then deletes them to free up space. This process is carried out automatically and there is nothing that the programmer needs to do to have the system identify what needs to be deleted.
Java Garbage Collection is also known as a type of process. This is something that is done by Java programs to ensure that automatic memory management will be properly done. Java programs will be compiled to a bytecode so that they can run on JVM also known as Java Virtual Machine.
The role of the Garbage Collector is to look for the objects that have not been used so that they can be eventually deleted. By doing this, more space will be available for the other details that are needed to create Java−related tasks. The Garbage Collector will also make sure first if the items that are unused are no longer reachable.