finally 总是会被执行

Yao Yao on August 3, 2009

finally 总是会被执行,即使 try 中有 breakcontinuereturn,如:

public class FinallyTest {  
	public static void main(String[] args) {  
		int i;  
		  
		for (i = 0; ;i++) {  
			try {  
				if (i == 0) { 
					continue;
				}
				else if (i == 1) {
					break; 
				}
			} finally {  
				System.out.println("loop " + i + " ends");  
			}  
		}  
		  
		try {  
			return;  
		} finally {  
			System.out.println("return ends");  
		}  
	}  
}  
  
// output  
/* 
	loop 0 ends 
	loop 1 ends 
	return ends 
*/  

另外,从这个例子可以看出,不写 catch,直接 try-finally 也是可以的。



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