程序输出题20220723

public class Demo {

    public static String sRet = "";

    public static void func(int i)

    {

        try

        {

            if (i%2==0)

            {

                throw new Exception();

            }

        }

        catch (Exception e)

        {

            sRet += "0";

            return;

        } 

        finally

        {

            sRet += "1";

        }

        sRet += "2";

    }

    public static void main(String[] args)

    {

        func(1);

        func(2);

        System.out.println(sRet);

    }

}

 

“1201”

1.调用func(1)，if不符合，直接进入finally，sRet="1"

2.finally语句在没有返回值，故继续向下执行，sRet="12"

3.调用func(2)，if符合，sRet="120"，此时有return！！！

4.调用finally语句，sRet="1201"

5.已经有return，finally后的语句不执行，sRet="1201"