try catch嵌套try catch

try {
            //A
            int a = 3 / 0;
            /**
             * E Exception
             * F 外层finally
             */
            try {
                //B
                int b = 3 / 0;
                /**
                 * 注释掉A
                 * C Exception
                 * D 内层finally
                 * F 外层finally
                 */
            } catch (Exception ex) {
                //C
                System.out.println("C Exception");
            } finally {
                //D
                System.out.println("D 内层finally");
            }
        } catch (Exception ex) {
            //E
            System.out.println("E Exception");
        } finally {
            //F
            System.out.println("F 外层finally");
        }

1、执行后：

E Exception
F 外层finally

2、注释掉A处代码

C Exception
D 内层finally
F 外层finally