Garbage collection is an important part of Java that helps to manage memory. It is the process of reclaiming memory from objects that are no longer in use. Garbage collection is an automatic process in Java that runs in the background and frees up memory by deleting objects that are no longer being used.
An example of garbage collection in Java would be when a program creates an instance of an object. After the object is no longer needed, the memory allocated to it is freed up by the garbage collector. This allows the memory to be used for other objects.