抽象类实验:SIM卡抽象
抽象SIM:
package sim_package;
public abstract class SIM {
public abstract String giveNumber();
public abstract String giveCorpName();
public abstract void setNumber(String n);
}
SIM子类:
package sim_package;
public class SIMOFChinaMobile extends SIM{
String phonenumber;
public SIMOFChinaMobile(){
phonenumber="";
}
public SIMOFChinaMobile(String phonenumber){
this.phonenumber=phonenumber;
}
public String giveNumber(){
return phonenumber;
}
public String giveCorpName(){
return "中国移动";
}
public void setNumber(String phonenumber){
this.phonenumber=phonenumber;
}
}
SIM子类:
package sim_package;
public class SIMOFChinaUnicom extends SIM {
String phonenumber;
public SIMOFChinaUnicom(){
phonenumber="";
}
public SIMOFChinaUnicom(String phonenumber){
this.phonenumber=phonenumber;
}
public String giveNumber(){
return phonenumber;
}
public String giveCorpName(){
return "中国联通";
}
public void setNumber(String phonenumber){
this.phonenumber=phonenumber;
}
}
手机类:
package Mobile_telephone;
import sim_package.*;
public class Mobiletelephone {
SIM card;
public Mobiletelephone(){
}
public Mobiletelephone(SIM card){
this.card=card;
}
public void useSIM(SIM card){
System.out.println("运营商:"+card.giveCorpName());
System.out.println("手机号:"+card.giveNumber());
}
}
主程序:
import Mobile_telephone.*;
import sim_package.*;
public class Application {
public static void main(String[] args) {
SIM sim=new SIMOFChinaUnicom();
sim.setNumber("13887656432");
Mobiletelephone phone=new Mobiletelephone();
phone.useSIM(sim);
sim=new SIMOFChinaMobile();
sim.setNumber("13097656437");
phone.useSIM(sim);
}
}
posted on 2017-11-18 09:29 MACHINE_001 阅读(225) 评论(0) 编辑 收藏 举报