- Heap space : JVM allocates some memory from OS, object is
created from Heap and returned to the heap at the end of it's life
cycle.
- JVM reclaim heap space from the expired objects.
- In Servers, default JVM maximum heap space is 1G /4GB of physical memory on a 32 bit and in 64 bit JVM its 32G / 128GB of physical memory. RAM
- Heap dump : Java Heap dump is a snapshot of Java Heap Memory at a given time
- Stack : local variables are stored