java 例子7 内部类

[root@gdc1000 java]# cat Outer.java public class Outer {int n;class Inner {void setOut() { n = 10; }}void setn() {new Inner().setOut();}}[root@gdc1000 java]# 

测试

[root@gdc1000 java]# cat OutTest.java public class OutTest {public static void main(String[] args) {int input = 0;if(0 == args.length)                {System.out.println("default input");input = 0;}else{input = Integer.parseInt(args[0]);}Outer o = new Outer();o.setn();System.out.println(o.n);}}

这个内部类很多可怕的特性中就这最简单了。