How many objects are eligible for Garbage collection in Java?

Regarding Garbage Collection?

• 1.class Snoochy { 2.Boochy booch; 3.public Snoochy() { booch = new Boochy(this); } 4.} 5.class Boochy { 6.Snoochy snooch; 7.public Boochy(Snoochy s) { snooch = s; } 8.} And the statements 9.public static void main(String[] args) { 10.Snoochy snoog = new Snoochy(); 11.snoog = null; // more code here } Which statement is true about the objects referenced by snoog, snooch, and booch immediately after line 23 executes? A. None of these objects are eligible for garbage collection. B. Only the object referenced by booch is eligible for garbage collection. C. Only the object referenced by snoog is eligible for garbage collection. D. Only the object referenced by snooch is eligible for garbage collection. E. The objects referenced by snooch and booch are eligible for garbage collection. i thought the answer is C but the answer is E.can anyone explain hw is it possible ?? coz in line 11 we have assigned snoog=null.then it should be ready for garbage collection but why its not counted?? pls explain in detail

• Answer:

  the two classes reference each other. So.. when snoog is created, you also get a booch and a snooch. when you set snoog = null, booch and snooch are eligible for GC,