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Thread: number of object formed of a class implenting a interface

  1. #1
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    Post number of object formed of a class implenting a interface

    3. interface Animal { void makeNoise(); }
    4. class Horse implements Animal {
    5. Long weight = 1200L;
    6. public void makeNoise() { System.out.println("whinny"); }
    7. }
    8. public class Icelandic extends Horse {
    9. public void makeNoise() { System.out.println("vinny"); }
    10. public static void main(String[] args) {
    11. Icelandic i1 = new Icelandic();
    12. Icelandic i2 = new Icelandic();
    12. Icelandic i3 = new Icelandic();
    13. i3 = i1; i1 = i2; i2 = null; i3 = i1;
    14. }
    15. }
    When line 14 is reached, how many objects are eligible for the garbage collector?
    A. 0
    B. 1
    C. 2
    D. 3
    E. 4
    F. 6

  2. #2
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    Default Re: number of object formed of a class implenting a interface

    Welcome to the forum! Please read this topic to learn how to post code in code or highlight tags and other useful info for new members.

    We won't do your homework for you. If you'd like to post what you think the answer is with the reason you chose that answer and then ask our opinions, you may get responses. May.

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