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final,finally,finalize

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作者 正文
   发表时间:2009-08-26   最后修改:2009-08-26

try {

     System.out.println("try");

     throw new Exception(); //如没有执出Exception

} catch (Exception e) {

 // TODO: handle exception

     System.out.println("catch");

}finally{

      System.out.println("finally");

}

 try
catch//这儿将不会被执行到,
finally

 

其中如try...catch是在一方法里面的:

public static int demo(){
 try {
  System.out.println("try");
  throw new Exception();
 } catch (Exception e) {
  // TODO: handle exception
  System.out.println("catch");

 }finally{
  System.out.println("finally");

 }
 System.out.println("start return");

 return 2;
 

将执行完finally块后再向下执行,直到执行return 为止.以上demo()方法执行结果为:

try
catch
finally
start return

 

 

1,final

java 关键字如 final static int OPEN_STATUS = 6;

 

2,finally

try{}finally{}块的语法,如上

 

3,finalize

 

java.lang.Object

finalize

protected void finalize()
                 throws Throwable
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. A subclass overrides the finalize method to dispose of system resources or to perform other cleanup.
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