Question

I have a do-while loop like this

do {

   SomeObject someObject = new SomeObject();

} while(some condition is met);

I wish to know what is the life-cycle of someObject object and when will they become eligible for GC collection.

Answer 1

Any object becomes eligible for garbage collection when it is no longer reachable by any reference that is currently in scope.

In your example, the instance assigned to someObject will become eligible for GC at the end of the single loop iteration in which it was created, because you have only a single reference to it, and that reference goes out of scope at the end of the loop block.

However, this assumes that you are not passing references to your object elsewhere during the execution of the constructor and there is no other code that passes references to your object from your loop.