题目要求
一 、LapTop类
package lapTop;
public class LapTop {
public void charge() {
System.out.println("供电中");
}
}
二、AcPower类
package lapTop;
public class AcPower extends LapTop {
@Override
public void charge() {
System.out.println("AcPower供电中。");
}
}
三、Battery类
package lapTop;
public class Battery extends LapTop {
@Override
public void charge() {
System.out.println("电源供电中。");
}
}
四、Power类
package lapTop;
public class Power {
public LapTop chargeWay(String PowerSupply) {
LapTop l=null;
if(PowerSupply.equals("是")) {
l=new AcPower();
}else {
l=new Battery();
}
return l;
}
public void charge(LapTop charge) {
charge.charge();
}
}
五、TestLapTop类
package lapTop;
import java.util.Scanner;
public class TestLapTop {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
Power p=new Power();
System.out.print("是否插入电源：");
String PowerSupply=sc.next();
LapTop i=p.chargeWay(PowerSupply);
p.charge(i);
}
}
六、效果展示
