受保護的雙倍重量、高度;
public void speakHello( ) {
system . out . println(" yayawawa ");
}
公共void平均高度(){
身高= 173;
System.out.println("平均高度:"+高度);
}
公共void averageWeight( ) {
重量= 70;
System.out.println("平均重量:"+重量);
}
}
class ChinaPeople擴展人{
public void speakHello(){
System.out.println("妳好,吃飯了嗎");
}
公共void平均高度(){
System.out.println("中國人平均身高:168.78cm ");
}
公共void averageWeight(){
System.out.println("中國人平均體重:65kg ");
}
public void chinaGongfu() {
System.out.println("坐如鐘,立如松,睡如弓");
}
}
階級美國人民擴展人民{
public void speakHello(){
System.out.println("妳好");
}
公共void平均高度(){
System.out.println("美國平均身高:175cm ");
}
公共void averageWeight(){
System.out.println("美國平均身高:80kg ");
}
public void americanBoxing() {
System.out.println("直鉤");
}
}
北京人民拓展中國人民{
public void speakHello(){
system . out . println(" hello ");
}
公共void平均高度(){
System.out.println("北京平均身高:175cm ");
}
公共void averageWeight(){
System.out.println("北京平均身高:80kg ");
}
public void京劇(){
System.out.println("京劇");
}
}
公共類示例{
公共靜態void main(String args[ ]) {
ChinaPeople chinaPeople =新中國人民();
AmericanPeople americanPeople =新美國人();
北京人beijingPeople =新北京人();
China people . speak hello();
American people . speak hello();
Beijing people . speak hello();
China people . average height();
American people . average height();
Beijing people . average height();
China people . average weight();
American people . average weight();
Beijing people . average weight();
China people . China gong fu();
American people . American box();
Beijing people . Beijing opera();
Beijing people . China gong fu();
}
}