个位看看为什么结果会是这样呢？

/**
*@veision 2011-10-5 14:24:50
*@author Heart
*/
class InnerClassTest {
        public static void main(String[] args) {
                Outer outer = new Outer();
                outer.test();
        }
}
class Outer {
        private int i = 10;
        private int y = 8;

        Outer() {
                System.out.println("调用Outer构造方法：outer");
        }

        public void sayMsg() {
                System.out.println("Outer class!");
        }

        class Inner {
                int i = 1000;

                Inner() {
                        System.out.println("调用Inner构造方法：inner");
                }

                void innerMsg() {
                        System.out.println(">>>>>Inner class!");
                        sayMsg();
                        //访问内部类自己的成员i，也可以写成 this.i++
                        this.i++;
                        //访问外部类的成员 i和y
                        Outer.this.i++;
                        y--;
                }

                int getI() {
                        return i;
                }
        }

        public void test() {
                Inner in = new Inner();
                in.innerMsg();
        }

        public int getI() {
                return i;
        }

        public void setI(int i) {
                this.i = i;
        }
}