作業(yè)5(抽象類作業(yè))含答案

System.out.println("---有參"+name);

}

}

publicvoidpayment(){

System.out.println(getName()+"工資：10元每小時(shí)");

}

}

package;

super(name);

System.out.println("---有參"+name);

}

publicCommissionedEmployee(){

}

}

}

System.out.println("---有參"+name);

}

publicPiecedEmployee(){

}

publicvoidpayment(){

System.out.println(getName()+"工資：5元每小時(shí)");

}

}

package;

publicStringgetName(){

returnname;

}

publicvoidsetName(Stringname){

=name;

}

=name;

}

}

}

}elseif(einstanceofCommissionedEmployee){

}

}

}

2抽象類：

創(chuàng)建一個(gè)Vehicle類并將它聲明為抽象類。在Vehicle類中聲明一個(gè)NoOfWheels方法，使它

返回一個(gè)字符串值。創(chuàng)建兩個(gè)類Car和Motorbike從Vehicle類繼承，并在這兩個(gè)類中實(shí)現(xiàn)

NoOfWheels方法。在Car類中，應(yīng)當(dāng)顯示“四輪車”信息；而在Motorbike類中，應(yīng)當(dāng)顯

示“雙輪車”信息。創(chuàng)建另一個(gè)帶main方法的類，在該類中創(chuàng)建Car和Motorbike的實(shí)例，

并在控制臺(tái)中顯示消息。

publicabstractclassVehicle{

privateStringname;

publicVehicle(Stringname){

=name;

}

publicVehicle(){

}

publicStringgetName(){

returnname;

}

publicvoidsetName(Stringname){

=name;

}

publicabstractvoidNoOfWheels();

}

System.out.println("---有參---"+name);

}

}

@Override

}

}

packagem;

publicclassMotorbikeextendsVehicle{

publicMotorbike(Stringname){

super(name);

System.out.println("---有參---"+name);

}

publicMotorbike(){

}

@Override

publicvoidNoOfWheels(){

}

}

importm.Car;

publicclassTestVehicle{

/**

Motorbikemot=newMotorbike("永久牌自行車"