What is heap memory allocation?

Allocated heap memory is a part of RAM used by the Java Virtual Machine (JVM)/Dalvik/ART to store objects created during application runtime.

It differs from stack memory, which is used to store primitive data types, object references, local variables, and method call information.

The size of the heap is limited, and an OutOfMemoryError can occur if there is not enough memory. Memory management in the heap is handled by the garbage collector, which automatically frees memory from objects that are no longer referenced.