(2) Java heap memory

Java Heap Memory structure diagram

"Noun explanation"
--->eden,so,s1 is known as the Cenozoic object store
--->tenured is called the old age object store
--->s0 and S1, also known as the From and to zones, are two memory spaces that are equal in size and can be exchanged for roles.

"Behavioral Interpretation"
---> Large number of cases, the object is first allocated in the Eden area
---> per garbage collection, age plus 1 if the object is still alive.
---> Objects of different ages are stored in different areas of the Java heap.
---> Different areas of garbage collection frequency and algorithm are not the same
The size of the---> different areas is also different.

"Abnormal Situation"
---> Heap memory overflow java.lang.OutOfMemoryError:java heap space

(2) Java heap memory