BeijingPeople

public class BeijingPeople extends ChinaPeople{
public void averageHeight(){
height=172.5;
System.out.println("北京人的平均身高："+height);
}
public void averageWeight(){
weight=168.78;
System.out.println("北京人的平均体重："+weight);
}
public void beijingOpera(){
System.out.println("北京歌剧：花脸，青衣，花旦和老生");
}
}