内部类---内嵌类

package 学习;

public class Javas {

/**
* @param args
*/
public static void main(String[] args) {
China china= new China();
china.getBeijing().print();

}

}
class China{
final String song="中国红";
private Beijing beijing;
China(){
beijing =new Beijing();
}
public Beijing getBeijing(){
return beijing;
}
String  getSong(){
return song;
}
class Beijing{
String name="北京";
void print(){
System.out.println("我们是"+name+"我们的国歌是:"+getSong());
}
}

}