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Thread: can any one explain the solution for this program

  1. #1
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    Default can any one explain the solution for this program

    Given:
    1. public class GC {
    2. private Object o;
    3. private void doSomethingElse(Object obj) { o = obj; }
    4. public void doSomething() {
    5. Object o = new Object();
    6. doSomethingElse(o);
    7. o = new Object();
    8. doSomethingElse(null);
    9. o = null;
    10. }
    11. }
    When the doSomething method is called, after which line does the Object created in line 5
    become available for garbage collection?


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    Default Re: can any one explain the solution for this program

    Welcome to the Forum! Please read this topic to learn how to post code correctly and other useful tips for newcomers.

    We won't do your exam/homework for you. If you'd like our input, tell us what you think the answer is and ask us for feedback. Even then, you may not get it.

  3. #3
    Junior Member codepoet's Avatar
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    Default Re: can any one explain the solution for this program

    You will know if an object is eligible for garbage collector if it becomes UNREACHABLE, and this happens when you don't have any reference variable pointing to it. With this knowledge, you will be able to answer that.

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