public class Test {

    String x;

    public static void main(String[] args) {

        Test test = new Test();

        try {

            System.out.println(test.x.length());

        } catch (ArrayIndexOutOfBoundsException e) {

            test.x = "hello world";

            System.out.println(test.x.length());

        } catch (NullPointerException e) {

            // TODO: handle exception

            test.x = "hello world";

            System.out.println(test.x.length());

        } catch (Exception e) { // 必须放到最后

            // TODO: handle exception

            e.printStackTrace();

        }

        System.out.println("end");

    }

}

11

end