JTextField to File Output

Question

사용자가 등록하고 그의 정보가 간단한 텍스트 출력을 사용하여 파일로 출력되는 프로그램을 만들려고하고 있습니까?

여기

package malkawi.login; 


import java.awt.BorderLayout; 
import java.awt.ComponentOrientation; 
import java.awt.Container; 
import java.awt.Dimension; 
import java.awt.GridBagConstraints; 
import java.awt.GridBagLayout; 
import java.awt.GridLayout; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import java.awt.event.ItemEvent; 
import java.awt.event.ItemListener; 
import java.io.FileNotFoundException; 
import java.io.PrintWriter; 
import java.io.UnsupportedEncodingException; 
import java.util.*; 

import javax.swing.*; 

import malkawi.login.JTextFieldLimit; 


/** 
* 
* @author Defiledx1 
* sign up 
*/ 

public class SignUp extends JFrame implements EventListener { 



    JFrame frame = new JFrame(); 
    JPanel panel = new JPanel(); 
    JButton complete = new JButton("Next"); 
    JLabel fname = new JLabel("Name: "); 
    JLabel Mname = new JLabel("Middle Name: "); 
    JLabel Lname = new JLabel("Last Name: "); 
    JLabel user = new JLabel("Username: "); 
    JLabel pass = new JLabel("Password: "); 
    JLabel info = new JLabel("Click Next to Continue"); 
    JLabel email = new JLabel("Email: "); 
    JLabel scode = new JLabel("Secret Code: "); 
    JTextField fname1 = new JTextField(); 
    JTextField Mname1 = new JTextField(); 
    JTextField Lname1 = new JTextField(); 
    JTextField user1 = new JTextField(); 
    JPasswordField pass1 = new JPasswordField(); 
    JTextField email1 = new JTextField(); 
    JTextField scode1 = new JTextField(); 
    JRadioButton showPass = new JRadioButton("Show Pass"); 


    public SignUp() { 
     super("Sign Up - Flare By Malkawi"); 
     setDefaultCloseOperation(EXIT_ON_CLOSE); 
     setSize(600, 400); 
     setResizable(false); 
     setVisible(true); 
     setVisible(true); 
     setLayout(new GridLayout(0, 2, 10, 10)); 
     setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT); 
     /* 
     * Limitations 
     */ 
     fname1.setDocument(new JTextFieldLimit(10)); 
     Mname1.setDocument(new JTextFieldLimit(1)); 
     Lname1.setDocument(new JTextFieldLimit(10)); 
     user1.setDocument(new JTextFieldLimit(15)); 
     email1.setDocument(new JTextFieldLimit(80)); 
     scode1.setDocument(new JTextFieldLimit(5)); 
     /* 
     * End Of Limitations 
     */ 
     /* 
     * RadioButton Checked : Unchecked 
     */ 
     showPass.addItemListener(new ItemListener() { 
      public void itemStateChanged(ItemEvent e) {   
       showPassword(e.getStateChange() == 1 ? true : false); 

      }   
      }); 
     /* 
     * End of RadioButton Checked : UnChecked 
     */ 
     /* 
     * Action of registration 
     */ 
      complete.addActionListener(new ActionListener() { 

       public void actionPerformed(ActionEvent e) 
       { 
       try { 
        outPutInformation(); 
       } catch (FileNotFoundException | UnsupportedEncodingException e1) { 
        // TODO Auto-generated catch block 
        e1.printStackTrace(); 
        System.out.println("Flare is unable at the moment!"); 
       } 
       } 
      }); 
      /* 
      * End of Action of registration 
      */ 
      // Dimension labelSize = info.getPreferredSize(); 
      /* 
      * Start of placements 
      */ 
      //add(info); 
      add(fname); 
      add(fname1); 
      add(Mname); 
      add(Mname1); 
      add(Lname); 
      add(Lname1); 
      add(user); 
      add(user1); 
      add(pass); 
      add(pass1); 
      add(email); 
      add(email1); 
      add(scode); 
      add(scode1); 
      add(complete); 
      add(showPass); 
      add(info); 
      pack(); 
    } 

    public void showPassword(boolean showP) { 
     if (showP == true) { 
      pass1.setEchoChar((char)0); 
     } else { 
      pass1.setEchoChar('*'); 
     } 

    } 

    /* 
    * File Output Requirements 
    */ 
    String filename = user1.getText(); 
    String firstname = fname1.getText(); 
    String middlename = Mname1.getText(); 
    String lastname = Lname1.getText(); 
    String username = user1.getText(); 
    @SuppressWarnings("deprecation") 
    String password = pass1.getText(); 
    String hotmail = email1.getText(); 
    String secretcode = scode1.getText(); 
    /* 
    * File Output done 
    */ 


    public void outPutInformation() throws FileNotFoundException, UnsupportedEncodingException { 
     PrintWriter writer = new PrintWriter(filename+".txt", "UTF-8"); 
     writer.println(firstname); 
     writer.println(middlename); 
     writer.println(lastname); 
     writer.println(username); 
     writer.println(password); 
     writer.println(hotmail); 
     writer.println(secretcode); 
     writer.close(); 
    } 



} 

문제는 그것이 무엇을 출력 아니에요 것입니다 .. 내 전체 클래스입니다. 2 폴더 뒤에있는 파일을 어떻게 출력 할 수 있습니까?

고맙습니다!

Answer 1

텍스트 필드에 아무 것도 입력하기 전에 변수가 초기화되므로 아무 것도 출력되지 않습니다. 이런 식으로해야하거나 먼저 변수에 저장 한 다음 파일에 쓰는 경우 파일에 텍스트 필드 값을 직접 써야합니다.

public void outPutInformation() throws FileNotFoundException, UnsupportedEncodingException { 

    String filename = user1.getText(); 
    String firstname = fname1.getText(); 
    String middlename = Mname1.getText(); 
    String lastname = Lname1.getText(); 
    String username = user1.getText(); 
    @SuppressWarnings("deprecation") 
    String password = pass1.getText(); 
    String hotmail = email1.getText(); 
    String secretcode = scode1.getText(); 

    PrintWriter writer = new PrintWriter(filename+".txt", "UTF-8"); 
    writer.println(firstname); 
    writer.println(middlename); 
    writer.println(lastname); 
    writer.println(username); 
    writer.println(password); 
    writer.println(hotmail); 
    writer.println(secretcode); 
    writer.close(); 
}