1z0-851

单选题Given: When the doSomething method is called, after which line does the Object created in line 5 become available for garbage collection?()ALine 5BLine 6CLine 7DLine 8ELine 9FLine 10

题目
单选题
Given: When the doSomething method is called, after which line does the Object created in line 5 become available for garbage collection?()
A

Line 5

B

Line 6

C

Line 7

D

Line 8

E

Line 9

F

Line 10

参考答案和解析
正确答案: A
解析: 暂无解析
如果没有搜索结果,请直接 联系老师 获取答案。
相似问题和答案

第1题:

Given:Which code, inserted at line 16, correctly retrieves a local instance of a Point object?()

A.Point p = Line.getPoint();

B.Line.Point p = Line.getPoint();

C.Point p = (new Line()).getPoint();

D.Line.Point p = (new Line()).getPoint();


参考答案:D

第2题:

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.

正确答案:E

第3题:

1.public class GC{2.private Objec to;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?()

A.Line5

B.Line6

C.Line7

D.Line8

E.Line9

F.Line10


参考答案:D

第4题:

1.public class GC{ 2.private Objec to; 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?()

  • A、Line5
  • B、Line6
  • C、Line7
  • D、Line8
  • E、Line9
  • F、Line10

正确答案:D

第5题:

12. void start() {  13. A a = new A();  14. B b = new B();  15. a.s(b);  16. b = null;  17. a = null;  18. System.out.println(“start completed”); 19. }  When is the B object, created in line 14, eligible for garbage collection?()  

  • A、 After line 16.
  • B、 After line 17.
  • C、 After line 18 (when the methods ends).
  • D、 There is no way to be absolutely certain.
  • E、 The object is NOT eligible for garbage collection.

正确答案:D

第6题:

public class X {  public object m () {   object o = new float (3.14F);   object oa = new object [1];   oa[0]= o;   o = null;   return oa[0];   }   }   When is the float object created in line 3, eligible for garbage collection?()

  • A、 Just after line 5
  • B、 Just after line 6
  • C、 Just after line 7 (that is, as the method returns)
  • D、 Never in this method.

正确答案:D

第7题:

10. public Object m() { 11. Object o = new Float(3.14F); 12. Object [] oa = new Object[1]; 13. oa[0] = o; 14. o = null; 15. return oa[0]; 16. } When is the Float object, created in line 11, eligible for garbage collection?()  

  • A、 Just after line 13.
  • B、 Just after line 14.
  • C、 Never in this method.
  • D、 Just after line 15 (that is, as the method returns).

正确答案:C

第8题:

Given:When the doSomething method is called, after which line does the Object created in line 5 become available for garbage collection?()

A.Line 5

B.Line 6

C.Line 7

D.Line 8

E.Line 9

F.Line 10


参考答案:D

第9题:

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?() 

  • A、 Line 5
  • B、 Line 6
  • C、 Line 7
  • D、 Line 8
  • E、 Line 9
  • F、 Line 10

正确答案:D

第10题:

1. public class X (  2. public object m ()  {  3. object o = new float (3.14F);  4. object [] oa = new object [1];  5. oa[0]= o;  6. o = null;  7. return oa[0];  8. }  9. }   When is the float object created in line 3, eligible for garbage collection?()  

  • A、 Just after line 5
  • B、 Just after line 6
  • C、 Just after line 7 (that is, as the method returns)
  • D、 Never in this method.

正确答案:D

更多相关问题