Java編寫汽車類car

public?class?Car?{

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private?int?num;//編號(hào)

private?String?name;//型號(hào)

private?double?price;//單價(jià)

/**

?*?無參構(gòu)造

?*/

public?Car(){

super();

}

/**

?*?有參構(gòu)造

?*?@param?num

?*?@param?name

?*?@param?price

?*/

public?Car(int?num,?String?name,?double?price)?{

super();

this.num?=?num;

this.name?=?name;

this.price?=?price;

}

public?int?getNum()?{

return?num;

}

public?void?setNum(int?num)?{

this.num?=?num;

}

public?String?getName()?{

return?name;

}

public?void?setName(String?name)?{

this.name?=?name;

}

public?double?getPrice()?{

return?price;

}

public?void?setPrice(double?price)?{

this.price?=?price;

}

public?String?inforShow()?{

return?"Car?[num="?+?num?+?",?name="?+?name?+?",?price="?+?price?+?"]";

}

}

public?class?PriCar?extends?Car{

private?int?PersonNum;//最大載客量

public?PriCar(int?personNum)?{

super();

PersonNum?=?personNum;

}

public?PriCar()?{

super();

}

public?int?getPersonNum()?{

return?PersonNum;

}

public?void?setPersonNum(int?personNum)?{

PersonNum?=?personNum;

}

@Override

public?String?inforShow()?{

return?"PriCar?[PersonNum="?+?PersonNum?+?"]";

}

}

public?class?VanCar?extends?Car?{

private?double?weight;//最大載重

public?VanCar(double?weight)?{

super();

this.weight?=?weight;

}

public?VanCar()?{

super();

}

@Override

public?String?inforShow()?{

return?"PriCar??[num="?+?super.getNum()?+?",?name="?+?super.getName()?+?",?price="?+?super.getPrice()?+",weight="?+?weight?+?"]";

}

}

測試類不想寫了??應(yīng)該可以自己寫出來了吧

求大神解答，Java 畫出如下圖所示的小車

import java.awt.Color;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.Point;

import java.awt.event.KeyAdapter;

import java.awt.event.KeyEvent;

import javax.swing.JFrame;

import com.me.util.JFrameUtil;

public class SwingCar extends JFrame {

private final int rect_Width = 80;

private final int rect_Height = 50;

private final int radius = 15;

private final int arcAngle = 30;

private Point p = new Point();

public SwingCar() {

setSize(500, 300);

setVisible(true);

setResizable(false);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JFrameUtil.toCenter(this);

p = new Point(getWidth() / 2, getHeight() / 2);

move();

}

@Override

public void paint(Graphics g) {

super.paint(g);

drawRect(p);

drawRolls(p);

g.drawLine(0,getHeight()/2+rect_Height/2+radius, getWidth(), getHeight()/2+rect_Height/2+radius);

}

public void drawRect(Point c) {

Graphics2D g = (Graphics2D) getGraphics();

g.setColor(Color.red);

g.drawRect((int) (c.getX() - rect_Width / 2),

(int) (c.getY() - rect_Height / 2), rect_Width, rect_Height);

g.setColor(Color.black);

g.drawLine((int) (c.getX() - rect_Width / 2)-50, (int) (c.getY() - rect_Height / 2)-rect_Height/2, (int) (c.getX() - rect_Width / 2), (int) (c.getY() - rect_Height / 2)+rect_Height/2);

g.setColor(Color.green);

g.fillOval((int) (c.getX() - rect_Width / 2)-50-2, (int) (c.getY() - rect_Height / 2)-rect_Height/2-2, 10, 10);

}

public void drawRolls(Point c) {

Graphics2D g = (Graphics2D) getGraphics();

g.setColor(Color.blue);

// first roll

g.fillOval((int) (c.getX() - rect_Width / 4 - radius), (int) (c.getY()

+ rect_Height / 2 - radius), radius * 2, radius * 2);

g.setColor(Color.green);

g.fillArc((int) (c.getX() - rect_Width / 4 - radius), (int) (c.getY()

+ rect_Height / 2 - radius), radius * 2, radius * 2,

calcAngle(c), arcAngle);

// second roll

g.setColor(Color.blue);

g.fillOval((int) (c.getX() + rect_Width / 4 - radius), (int) (c.getY()

+ rect_Height / 2 - radius), radius * 2, radius * 2);

g.setColor(Color.green);

g.fillArc((int) (c.getX() + rect_Width / 4 - radius), (int) (c.getY()

+ rect_Height / 2 - radius), radius * 2, radius * 2,

calcAngle(c), arcAngle);

}

public int calcAngle(Point c) {

Point center = new Point(getWidth() / 2, getHeight() / 2);

double distance = c.getX() - center.getX();

int angle = (int) (180 * distance / (Math.PI * radius));

return -angle;

}

public void move() {

this.addKeyListener(new KeyAdapter() {

@Override

public void keyPressed(KeyEvent e) {

if (e.getKeyCode() == KeyEvent.VK_RIGHT) {

p.translate(2, 0);

} else if (e.getKeyCode() == KeyEvent.VK_LEFT) {

p.translate(-2, 0);

}

repaint();

}

});

}

public static void main(String[] args) {

SwingCar sc = new SwingCar();

}

}

請(qǐng)問如何用Java編寫一個(gè)汽車類Car

public class Car {

private String color;//顏色

private int door;//車門數(shù)量

private float speed;//車速

public Car(){

this.color = "紅色";

this.door = 3;

this.speed = 110;

}

public Car(String color, int door, float speed) {

this.color = color;

this.door = door;

this.speed = speed;

}

public void start(){

//汽車啟動(dòng)。輸出汽車已啟動(dòng)，并輸出汽車的各個(gè)屬性

System.out.println("汽車已啟動(dòng)，汽車顏色為"+color+",車門數(shù)為"+door+",車速為"+speed);

}

public void speedUp(float speed){

//加速

System.out.println("汽車加速到"+speed+"km/h");

}

public void shutDown(float speed){

//減速

System.out.println("汽車減速到"+speed+"km/h");

}

public void brake(){

//剎車

System.out.println("已剎車");

}

}

public class Test {

public static void main(String[] args){

Car car = new Car();

car.start();

car.speedUp(100);

car.shutDown(60);

car.brake();

Car car1 = new Car("白色",4,20.2F);

car1.start();

car1.speedUp(100);

car1.shutDown(60);

car1.brake();

}

}

運(yùn)行結(jié)果

急～～高手請(qǐng)告訴我如何編寫小汽車的java程序代碼？？重賞！

import java.lang.*;

class Car{

public void safe(){

System.out.println("an quan xi shu gao !");

}

}

class Benz extends Car{

public void safe(){

System.out.println("che hao !");

}

}

class Santana extends Car{

public void safe(){

System.out.println("che hen bu hao hao !");

}

}

public class Test{

public static void main(String[]args){

Car s = new Car();

s.safe();

Benz s1 = new Benz();

s1.safe();

Santana s2 = new Santana();

s2.safe();

Car s3 = new Benz();

s3.safe();

Car s4 = new Santana();

s4.safe();

}

}

這是一個(gè) 命名為Test.java

public class Car{

double price;

String name;

int id;

//3個(gè)重載的構(gòu)造方法(name)(id,name)(id,name,price)

public Car(String name){

this(789,name);

}

public Car(int id,String name){

this(id,name,100000);

}

protected Car(int id,String name,double price){

this.price = price;

this.name = name;

this.id = id;

}

//3個(gè)重載的普通方法drive(int) drive(String) drive(int ,String)

public void drive(int i){

System.out.println("i = " + i);

System.out.println(price + "\n" + name + "\n" + id);

}

protected String drive(String s){

return "s is: " + s;

}

int drive(int i,String s){

return 2007;

}

}

class Test{

public static void main(String[]args){

Car c1 = new Car(777,"Santana");

c1.drive(18);

}

}

這個(gè)命名為Car.java

希望有你要的!

網(wǎng)站標(biāo)題：用Java的畫小車的代碼 小車是怎么畫的
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