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?() 

A .  System.gc(); B .  Runtime.gc(); C .  System.freeMemory(); D .  Runtime.getRuntime().growHeap(); E .  Runtime.getRuntime().freeMemory();

时间:2022-10-04 22:36:33 所属题库:SCJP程序员认证考试题库

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