我正在用另一個單獨的驅動程序類創建一個類。汽車類是汽車租賃公司存儲有關汽車的信息,如品牌,型號和註冊號,以便使用我可以使用的駕駛員類輸入新車,檢查車輛是否出租和不可用,並命名聘用者的僱用者。創建一個Java Car類
我的賽車類方法:
public class Car {
private String Make;
private String Model;
private int RegistrationNum;
public Car(String Make, String Model, String RegN){
//Constructor,
//stores the make, model and registration number of the new car
//sets its status as available for hire.
Make = "";
Model = "";
RegN = "";
}
public String getMake(){
return Make;
}
public String getModel(){
return Model;
}
public boolean hire(String newHirer){
{
//Hire this car to the named hirer and return true.
return true;
}
//Returns false if the car is already out on hire.
}
public boolean returnFromHire(){
{
//Receive this car back from a hire and returns true.
return true;
}
//Returns false if the car was not out on hire
}
public int getRego(){
//Accessor method to return the car’s registration number
RegistrationNum++;
return RegistrationNum;
}
public boolean hireable(){
//Accessor method to return the car’s hire status.
{
//returns true if car available for hire
return true;
}
}
public String toString(){
//return car details as formatted string
//output should be single line containing the make model and reg number
//followed by either "Available for hire" or "On hire to: <name>"
return "Vehicle ID number: "+ getRego()+"-"+"Make is: "+ getMake()+"-"+"Model is: "+getModel();
}
}
以下是我Driver類:
import java.util.*;
public class CarDriver {
static Car car1;
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner scan = new Scanner(System.in);
{
System.out.println("Make?");
String Make=scan.nextLine();
System.out.println("Model");
String Model=scan.nextLine();
System.out.println("Registration number?");
String RegNum=scan.nextLine();
car1 = new Car(Make,Model,RegNum);
System.out.println("What you input :");
System.out.println(car1.toString());
}}
}
我的輸出:
Make?
carmake
Model
carmodel
Registration number?
12345t
What you input :
Vehicle ID number: 1-Make is: null-Model is: null
問題:
無法理解如何將僞代碼轉換爲 布爾方法轉換成Java代碼
無法連接驅動 類來存儲信息,我輸入,如模型,使 和註冊號
這是[標籤:家庭作業]? – 2012-04-19 09:29:22
使用this.Makel,this.Model和this.red關鍵字在構造函數中存儲實例變量 – 2012-04-19 09:31:54
done =]反正它其實不是作業,但修訂問題 – Liquified 2012-04-19 09:32:24