여기를 참조하여 일부 수정을 완료했지만 여전히 내 프로그램을 만족하며 아직 완료되지 않았습니다.
문제 1 = 내 displayReg()가 "nullnullnullnull ..."이 나오면 arraylist를 사용해야합니까?
문제 2 = searchReg()에서 IC 및 NAME으로 검색하려면 옵션이 있어야합니다. 어떻게 할 수 있습니까?
문제 3 = .txt 파일에 displayReg를 표시해야합니다.배열에 데이터를 입력하고 null을 표시 할 때 프로그램 오류가 발생했습니다.
import java.util.*;
public class RegisterMenu {
private Driver[] newOwner;
private final int MAX_ITEMS = 10;
private int size = 0;
public Driver newReg(){
Driver owner = new Driver();
Scanner scan = new Scanner(System.in);
owner.setRegNo(size+1);
System.out.print("Enter Name: ");
owner.setName(scan.nextLine());
System.out.print("Enter IC: ");
owner.setIc(scan.nextLine());
System.out.print("Enter PlateNo: ");
owner.carInfo.setPlateNum(scan.nextLine());
System.out.print("Enter Color: ");
owner.carInfo.setColor(scan.nextLine());
System.out.print("Enter Year: ");
owner.carInfo.setYear(scan.nextLine());
System.out.print("Enter Make: ");
owner.carInfo.setMake(scan.nextLine());
System.out.print("Enter Model: ");
owner.carInfo.setModel(scan.nextLine());
System.out.print("Enter Capacity: ");
owner.carInfo.setCapacity(scan.nextLine());
return owner;
}
public Driver editReg(){
Scanner scan = new Scanner(System.in);
System.out.print("Enter RegNo to be edit: ");
int input = scan.nextInt();
Driver owner = newReg();
newOwner[input] = owner;
return owner;
}
public Driver searchReg(){
}
public void displayReg(){
for(int i = 0; i < newOwner.length; i++){
newOwner[i].toString();
}
}
public RegisterMenu(){
newOwner = new Driver[MAX_ITEMS];
Scanner scan = new Scanner(System.in);
System.out.println("1. Register New Car");
System.out.println("2. Edit Car Information");
System.out.println("3. Search Car Information");
System.out.println("4. Display Car List");
System.out.println("5. Exit");
System.out.print("Enter Selection: ");
int s = scan.nextInt();
switch(s){
case 1:
System.out.println("--Register New Car--");
if (size < MAX_ITEMS) {
Driver owner = newReg();
newOwner[size++] = owner;
}
break;
case 2:
System.out.println("--Edit Car Infomation--");
editReg();
break;
case 3:
System.out.println("--Search Car Infomation--");
break;
case 4:
System.out.println("--Display Car Infomation--");
displayReg();
break;
case 5:
System.exit(0);
default:
System.out.println("Error selection");
}
}
public static void main (String args[]){
while(true){
RegisterMenu owner = new RegisterMenu();
}
}
}
여기 여기 내 드라이버 클래스
public class Driver {
private int regNo;
private String name;
private String ic;
Car carInfo = new Car();
public Driver(){
}
public Driver(int regNo, String name, String ic, Car carInfo){
this.regNo = regNo;
this.name = name;
this.ic = ic;
this.carInfo = carInfo;
}
public int getRegNo(){
return regNo;
}
public String getName(){
return name;
}
public String getIc(){
return ic;
}
public void setRegNo(int regNo){
this.regNo = regNo;
}
public void setName(String name){
this.name = name;
}
public void setIc(String ic){
this.ic = ic;
}
public String toString(){
return "RegNo: "+getRegNo()+"\tName: "+getName()+"\tIc: "+getIc()+
"\tPlateNo: "+carInfo.getPlateNum()+"\tColor: "+carInfo.getColor()+"\tYear: "+carInfo.getYear()+
"\tMake: "+carInfo.getMake()+"\tModel: "+carInfo.getModel()+"\tCapacity: "+carInfo.getCapacity();
}
}
언어 태그를 추가하십시오. –