1. class Test {  2. private Demo d;  3. void start() {  4. d = new Demo();  5. this.takeDemo(d); 6. }  7.   8. void takeDemo(Demo demo) {  9. demo = null;  10. demo = new Demo(); 11. }  12. }  When is the Demo object, created on line 3, eligible for garbage collection?()  A、 After line 5.B、 After line 9.C、 After the start() method completes.D、 When the takeDemo() method completes.E、 When the instance running this code is made eligible for garbage collection.

1. class Test {  2. private Demo d;  3. void start() {  4. d = new Demo();  5. this.takeDemo(d); 6. }  7.   8. void takeDemo(Demo demo) {  9. demo = null;  10. demo = new Demo(); 11. }  12. }  When is the Demo object, created on line 3, eligible for garbage collection?()  

  • A、 After line 5.
  • B、 After line 9.
  • C、 After the start() method completes.
  • D、 When the takeDemo() method completes.
  • E、 When the instance running this code is made eligible for garbage collection.

相关考题:

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单选题package test; class Target{ public String name="hello"; } What can directly access and change the value of the variable name?()Aany classBonly the Target classCany class in the test packageDany class that extends Target

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单选题package test;  class Target {  public String name = “hello”;  }  What can directly access and change the value of the variable name?()A any classB only the Target classC any class in the test packageD any class that extends Target

单选题1. class Bar { }  1. class Test {  2. Bar doBar() {  3. Bar b = new Bar();  4. return b;  5. }  6. public static void main (String args[]) {  7. Test t = new Test();  8. Bar newBar = t.doBar();  9. System.out.println(“newBar”);  10. newBar = new Bar();  11. System.out.println(“finishing”);  12. }  13. } At what point is the Bar object, created on line 3, eligible for garbage collection?()A After line 8.B After line 10.C After line 4, when doBar() completes.D After line 11, when main() completes.

单选题public class Test {} What is the prototype of the default constructor?()A Test()B Test(void)C public Test()D public Test(void)E public void Test()