java - 关于finally块的少数异常(exception)和作用

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7年前关闭。





我正在阅读一本名为《 Java Puzzlers》的Java书籍，在其中我发现..永远不要退出带有return，break，continue或tHRow的finally块，并且永远不允许经过检查的异常传播到finally块之外。您能否用一些简短的例子详细解释一下，以便我能完全理解。

最佳答案

//运行此代码，您将看到运行此代码时，将获得以下值：

//由finally块返回，因此即使try和

//抓住。

class A
{
int one()
    {
        try
            {
             int n[]= new int[5];
             System.out.println("inside try");
             n[7]=89;
             return 10;
            }
        catch(Exception e)
            {
             System.out.println(e);
             return 399;
            }
        finally
            {
             System.out.println(" this is finally block");
             return 20; //priority is given to finally block
            }
        }
 }

class final7
{
    public static void main(String args[])
    {
    A ob= new A();
    System.out.println(ob.one());
    }
}