Answer / sitaram

When ever Heap size is full at that time out of memory
exception. To avoid the this exception, we can increase the
Heap size.

Answer / rajshree

during program execution objects are created in the
heap,after using those obejcts jvm should release those
momory space by garbage collection.but if in garbage
collection will not run on those object tha total heap will
be ocupied with those dead objects.
next time when JVM will try to allocate tyhe heap to an
object it wont be able to do so...that time it throws
outOfMemoryException.

Answer / good choice

OutOfMemory Exception occure when the heap size is full of
the objects created by JVM during the programmer execution.

Answer / aashish r. wadhokar

It happens when server memory is not released which is used
by objects declared.
Again it happens when EntityManager comes into picture.
till we do not close EntityManager transaction.

Answer / kamruddin

exception is an event and error that raised to the program
and break the flow of statement.

Uncheacked exception :- airthmetic error

chacked exception:- run time error

unchecked exception :-

1- airthmetic exception.
2- array index of bound exception.
3- array stored in exception
4- class cost exception
5- illegal argument exception
6- null pointer exception
7- negative null size of array exception
8- array found exception.

checked exception:-

1- class not found exception.
2- illegle accesss exception
3- instantation exception.
4- intrupted exception
5- no such method exception
6- no such field exception

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