java的自行车举例代码 java 自行车

java跪求大佬解答一道题？

class Bicycle{

public String color;

public double weight;

public double trackWidth;

public String model;

public double price;

public Bicycle(String color, String model, double weight, double trackWidth, double price) {

super();

this.color = color;

this.model = model;

this.weight = weight;

this.trackWidth = trackWidth;

this.price = price;

}

public String toString() {

return "色彩:"+this.color+"; 车重:"+this.weight+"; 轮距:"+this.trackWidth+"; 车型:"+this.model+"; 车价:"+this.price;

}

}

public class RacingBike extends Bicycle{

private int varSpeed;

public RacingBike(String color, String model, double weight, double trackWidth, double price,int speed) {

super(color, model, weight, trackWidth, price);

this.varSpeed=speed;

}

public String toString() {

return super.toString()+"; 变速:"+this.varSpeed;

}

public static void main(String[] args) {

RacingBike rb=new RacingBike("白色","山地自行车",13,1.6,512,8);

System.out.println(rb);

}

}

相关问答

Q1: java编程题 题目在问题补充里 急求答案！

class Bicycle {

private String brand;

private String color;

private float price;

public Bicycle() {

}

public Bicycle(String brand, String color, float price) {

this.brand = brand;

this.color = color;

this.price = price;

}

public String getBrand() {

return brand;

}

public void setBrand(String brand) {

this.brand = brand;

}

public String getColor() {

return color;

}

public void setColor(String color) {

this.color = color;

}

public float getPrice() {

return price;

}

public void setPrice(float price) {

this.price = price;

}

public void go() {

System.out.println("前进");

}

public void turn() {

System.out.println("拐弯");

}

public void stop() {

System.out.println("停车");

}

public void whistle() {

System.out.println("响铃");

}

}

public class Test {

public static void main(String[] args) {

Bicycle b1 = new Bicycle("凤凰", "红", 11);

b1.go();

b1.turn();

b1.stop();

b1.whistle();

System.out.println();

Bicycle b2 = new Bicycle();

b2.setBrand("永久");

b2.setColor("黄");

b2.setPrice(12);

b2.go();

b2.turn();

b2.stop();

b2.whistle();

}

}

Q2: java编程： 创建一个名称为bike的类，在该类中定义一个表示自行车颜色的成员变量color，还定义了一个叫做

class bike{

String color="";

String getMes(){

return color;

}

static void main(){

bike b=new bike();

System.out.println(b.getMes());

}

}

Q3: JAVA题 急求设计一个交通工具类Vehicle,它具有如下属性：

public class Vehicle {

private int speed;

private String kind;

private String color;

public int getSpeed() {

return speed;

}

public void setSpeed(int speed) {

this.speed = speed;

}

public String getColor() {

return color;

}

public void setColor(String color) {

this.color = color;

}

public String getKind() {

return kind;

}

public void setKind(String kind) {

this.kind = kind;

}

public Vehicle(){

this.setSpeed(20);

this.setKind("自行车");

this.setColor("红");

}

public static void main(String[] args) {

Vehicle v = new Vehicle();

System.out.println("颜色："+v.getKind()+"    类型："+v.getKind()+"    速度："+v.getSpeed());

v.setColor("黄");

v.setKind("汽车");

v.setSpeed(60);

System.out.println("颜色："+v.getKind()+"    类型："+v.getKind()+"    速度："+v.getSpeed());

}

}

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