Witam, Aby przećwiczyć kolejny materiał postanowiłem napisać program, który będzie zapisywał dane do pliku. Ale mam problem, gdyż zamiast danych w pliku mam wartości "null". W klasie WriteFile próbowałem już różnych sposobów, ale żaden nie działa.
Prosiłbym o jakieś wskazówki co robię źle.
A więc, mam klasę w której zdefiniowane mam prywatne pola oraz settery i gettery do tych pól.
package test.files;
import java.util.Date;
public class ClientCard {
private String name;
private Date dateOfBirthday;
private String street;
private int numberOfHome;
private String city;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Date getDateOfBirthday() {
return dateOfBirthday;
}
public void setDateOfBirthday(Date dateOfBirthday) {
this.dateOfBirthday = dateOfBirthday;
}
public String getStreet() {
return street;
}
public void setStreet(String street) {
this.street = street;
}
public int getNumberOfHome() {
return numberOfHome;
}
public void setNumberOfHome(int numberOfHome) {
this.numberOfHome = numberOfHome;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
@Override
public String toString() {
return "Name: " + getName() + "\nDate: " + getDateOfBirthday() +
"\nStreet: " + getStreet() + " " + getNumberOfHome() + "\nCity: " +
getCity();
}
}
W następnej klasie mam wczytywanie danych:
package test.files;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Scanner;
public class GetClient {
ClientCard clientCard = new ClientCard();
Scanner scanner = new Scanner(System.in);
public void getData() {
System.out.print("Name: ");
String name = scanner.nextLine();
clientCard.setName(name);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy.MM.dd");
Date date = null;
boolean dateGood = false;
do{
try{
System.out.print("Give date of birthday in format (yyyy.mm.dd): ");
String dateOfBirthday = scanner.nextLine();
date = sdf.parse(dateOfBirthday);
clientCard.setDateOfBirthday(date);
dateGood = true;
}catch (ParseException pe) {
System.out.println("Wrong date");
}
}while(dateGood == false);
System.out.print("Street: ");
clientCard.setStreet(scanner.nextLine());
System.out.print("Number home: ");
clientCard.setNumberOfHome(scanner.nextInt());
scanner.nextLine();
System.out.print("City: ");
clientCard.setCity(scanner.nextLine());
}
}
Klasa do zapisu oraz klasa testowa:
package test.files;
import java.io.*;
public class WriteFile{
File file = new File("card.txt");
ClientCard clientCard = new ClientCard();
public void writeFiles(String filePath) throws IOException {
if(file.createNewFile())
System.out.println("File was created");
else
System.out.println("File exist");
BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(filePath, true));
try{
bufferedWriter.append(clientCard.getName());
bufferedWriter.newLine();
bufferedWriter.append(clientCard.getCity());
}finally {
bufferedWriter.close();
}
}
}
package test.files;
import java.io.IOException;
public class TestClass {
public static void main(String[] args) throws IOException {
String filePath = "D:\\Java-Project\\src\\test\\files\\card.txt";
GetClient getClient = new GetClient();
WriteFile writeFile = new WriteFile();
getClient.getData();
writeFile.writeFiles(filePath);
}
}
Java 