finally 語句塊的深度辨析

/**
 * Created by HASEE on 2017/4/24.
 */
public class FinallyDemo2 {
    public static void main(String[] args) {
        System.out.println(test());
    }


    private static int test() {
        int i=10;
        try {
            System.out.println("執行try：1");
            //return i+=20;
            i=i/0;
        }
        catch (Exception e){
            i+=15;
            System.out.println("執行catch：2");
        }
        finally {
            System.out.println("執行finally:3");

            if (i>15){
                System.out.println("i>15:4");
            }
            i+=50;
        }
        return i;
    }

}