Question

Which of the given objects are eligible for Garbage collection after line 14 of the following code snippet?
class Test {
TestThis testthis;
public Test(){
testthis = new TestThis(this);
}
class TestThis {
Test test1;
public TestThis(Test aThis) {
test1 = aThis;
}
}
public static void main (String[] args){
Test test2 = new Test();
test2 = null; // line 14
}
}
Select
test1
testthis and test1
testthis, test1 and test2
None

Answer 1

Answer:

Explanation:

void start() {  

   A a = new A();  

   B b = new B();  

   a.s(b);  

   b = null; /* Line 5 */

   a = null;  /* Line 6 */

   System.out.println("start completed"); /* Line 7 */