程序改错(没错但运行不了）一直显示the selection cannot be launched

Question

package rentcar;   //第一个类public abstract class Car { public String name; public int number; public double money; }package rentcar;   //第二个类public class pikeuptruck extends Car implements Takething{ public int thingnum; public void takes(){ System.out.println("我可以载货哦"); } public pikeuptruck(int number,String name,double money,int thingnum){ this.number=number; this.name=name; this.money=money; this.thingnum=thingnum; } }package rentcar;          //第三个类public class Smallcar extends Car {   public int personnum; public Smallcar(int number,String name,double money, int personnum){ this.number=number; this.name=name; this.money=money; this.personnum=personnum; } } package rentcar;         //第四个类public class truck extends Car implements Takething{ public int thingnum; public void takes(){ System.out.println("我可以载货哦"); } public truck(int number,String name,double money,int thingnum){ this.number=number; this.name=name; this.money=money; this.thingnum=thingnum;package rentcar;      //定义一个接口public interface Takething {public void takes();} } }package rentcar;       //第五个类import java.util.Scanner;  import java.util.*; public class Carsystem { public Car[] cars={new Smallcar(1,"奥迪A4",500,4),new Smallcar(2,"马自达6",400,4), new pikeuptruck(3,"皮卡雪6",450,4),new truck(4,"金龙",800,20),new truck(5,"松花江",400,4), new truck(6,"依维柯",1000,20) };  public void countmoney11(int[] b,int d){ int countm=0; int countp=0; int countt=0; for(int e=0;e<b.length;e++) { switch(b[e]) { case 1: countm=countm+500; countp=countp+4; break; case 2: countm=countm+450; countp=countp+4; break; case 3: countm=countm+500; countp=countp+4; countt=countt+4; break; case 4: countm=countm+800; countp=countp+20; break; case 5: countm=countm+400; countt=countt+4; break; case 6: countm=countm+1000; countt=countt+20; break; } } System.out.println("可载人的车有："); for(int e1=0;e1<b.length;e1++) { switch(b[e1]) { case 1: System.out.println("奥迪A4"); break; case 2: System.out.println("马自达6"); break; case 3: System.out.println("皮卡雪6"); break; } System.out.print("共载人："+countp); } System.out.print("共载人："+countp); System.out.println("可载货的车有："); for(int e1=0;e1<b.length;e1++) { switch(b[e1]) { case 6: System.out.println("依维柯"); break; case 5: System.out.println("松花江"); break; case 3: System.out.println("皮卡雪6"); break; } } System.out.print("共载货："+countt); System.out.print("租车总价格："+countm); } public static void main(String[] args,int[] cars,int[] b){ System.out.println("欢迎使用达达打车系统"); System.out.println("您是否要租车：1是，2否"); Scanner scan1=new Scanner(System.in); int p=scan1.nextInt();           //可否使用p.chick(); if(p==1){ System.out.println("您可租的车的类型及价目表："); System.out.println("序号   汽车名称   租金   容量"); for(int i=0;i<=5;i++){ System.out.println(cars[i]); } System.out.println("请输入您要租汽车的数量"); Scanner scan2=new Scanner(System.in); int q=scan2.nextInt(); if(q!=0){ for(int c=0;q<=0;q--,c++){ System.out.println("请输入第一辆租汽车的序号"); Scanner scan3=new Scanner(System.in); int a=scan3.nextInt(); b[c]=a; }            } System.out.println("请输入您要租汽车的天数："); Scanner scan4=new Scanner(System.in); int d=scan4.nextInt(); System.out.println("您的账单："); Carsystem mycars=new Carsystem(); mycars.countmoney11(b, d); } else{ System.out.println("希望您下次光临"); } }}

Answer 1

兄弟，代码贴全