相关考题

单项选择题 11. class Snoochy {  12. Boochybooch;  13. public Snoochy() { booch = new Boochy(this); }  14. }  15.  16. class Boochy {  17. Snoochy snooch;  18. public Boochy(Snoochy s) { snooch = s; }  19. }  And the statements:  21. public static void main(String[] args) {  22. Snoochy snoog = new Snoochy();  23. snoog = null;  24. // more code here  25. }  Which statement is true about the objects referenced by snoog, snooch, and booch immediately after line 23 executes?()

单项选择题 11. rbo = new ReallyBigObject();  12. // more code here  13. rbo = null;  14. /* insert code here */  Which statement should be placed at line 14 to suggest that the virtual machine expend effort toward recycling the memory used by the object rbo?()

单项选择题 11. public void genNumbers() {  12. ArrayList numbers = new ArrayList();  13. for (int i=0; i<10; i++) {  14. int value = i * ((int) Math.random());  15. Integer intObj = new Integer(value);  16. numbers.add(intObj);  17. }  18. System.out.println(numbers);  19. }  Which line of code marks the earliest point that an object referenced by intObj becomes a candidate for garbage collection?()