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1. public class X { public static void main(String [] args) { X x = new X(); X x2 = m1(x); / Line 6 / X x4 = new X(); x2 = x4; / Line 8 / doComplexStuff(); } static X m1(X mx) { mx = new X(); return mx; } } After line 8 runs. how many objects are eligible for garbage collection?





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  • By: guest on 02 Jun 2017 01.26 am
    By the time line 8 has run, the only object without a reference is the one generated as a result of line 6. Remember that "Java is pass by value," so the reference variable x is not affected by the m1() method. Ref: http://www.javaworld.com/javaworld/javaqa/2000-05/03-qa-0526-pass.html
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