Topic: 一个“垃圾回收机制”问题!! |
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1.一个“垃圾回收机制”问题!! | Copy to clipboard |
Posted by: 1332185 Posted on: 2006-06-01 16:00 1. class Bar{} 2. class Test{ 3. Bar doBar(){ 4. Bar b=new Bar(); 5. return b; 6. } 7. public static void main(String args[]){ 8. Test t=new Test(); 9. Bar newBar=t.doBar(); 10.System.out.println("newBar"); 11.newBar=new Bar(); 12.System.out.println("finishing"); 13.} 14.} 各位大哥,我是刚学java不久,我现在对这个程序有2处地方不懂。 1:第3行“Bar doBar()”这个方法,我不知道它是个什么方法?它的返回值是什么类型? 2:这个程序满足垃圾回收机制的有那些? 请各位大哥教教我。我刚学不久,请说详细点。谢谢!!! |
2.Re:一个“垃圾回收机制”问题!! [Re: 1332185] | Copy to clipboard |
Posted by: tomcatexpert Posted on: 2006-06-02 14:51 1. Bar doBar() --> create a fresh new instance of Bar object.. return type is Bar. 2. when line 11. is executed, the first Bar object is eligible for GC. |
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