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이진 IO 및 이벤트 처리를 사용하여 과제를 진행하고 있습니다. 이런 식으로 보입니다. 기본 코드를 대부분 가지고 있다고 생각합니다. 그리고 지금은 어려운 부분까지 생각합니다. .bin 파일의 텍스트를 별도의 텍스트 필드로 어떻게 읽을 수 있습니까? 
GUI의 텍스트 필드에 특정 텍스트를 읽을 수 있도록 설정하려면 어떻게해야합니까?
내 입력란은 현재 비어 있지만 읽음으로 표시되는 것과 같아야하며 하단의 두 개의 버튼을 사용하여 별도의 정보 집합을 통해 구문 분석 할 수 있어야합니다.
여기까지 제가 지금까지 있습니다. RecordViewerUI JFrame 폼, RecordViewerPanel JFrame 패널 및 내 네 개의 변수에 대한 모든 getter 및 setters/constructor를 포함하는 SalesAgent Java 클래스가 있습니다.
내 패널입니다. 생성 된 코드를 유감스럽게 생각합니다. 누구든지 제공 할 수있는 도움에 미리 감사드립니다.
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.util.ArrayList;
import java.util.Date;
import java.util.logging.Level;
import java.util.logging.Logger;
public class RecordViewerPanel extends javax.swing.JPanel {
String filename = "sales.bin";
ArrayList<SalesAgent> customer = new ArrayList<>();
int curIndex = 0;
/**
* Creates new form RecordViewerPanel
*/
public RecordViewerPanel() throws IOException, ClassNotFoundException {
initComponents();
try {
ObjectInputStream in = new ObjectInputStream(
new BufferedInputStream(
new FileInputStream(filename)));
ArrayList<SalesAgent> salesForce = new ArrayList<SalesAgent>();
String first = in.readUTF();
String last = in.readUTF();
double sales = in.readDouble();
Date date = (Date) (in.readObject());
} catch (FileNotFoundException ex) {
Logger.getLogger(RecordViewerPanel.class.getName()).log(Level.SEVERE, null, ex);
}
}
private void refreshUI() {
SalesAgent sale = (customer.get(curIndex));
firstTextField.setText(sale.getFirst());
lastTextField.setText(sale.getLast());
salesTextField.setText("$" + String.valueOf(sale.getSales()));
dateTextField.setText(String.valueOf(sale.getDate()));
recordPanel.repaint();
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
filePanel = new javax.swing.JPanel();
fileLabel = new javax.swing.JLabel();
fileLabel1 = new javax.swing.JLabel();
recordPanel = new javax.swing.JPanel();
firstTextField = new javax.swing.JTextField();
lastTextField = new javax.swing.JTextField();
salesTextField = new javax.swing.JTextField();
dateTextField = new javax.swing.JTextField();
jLabel1 = new javax.swing.JLabel();
previousButton = new javax.swing.JButton();
nextButton = new javax.swing.JButton();
filePanel.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));
fileLabel.setBackground(new java.awt.Color(204, 204, 204));
fileLabel.setText("sales.bin");
fileLabel1.setBackground(new java.awt.Color(204, 204, 204));
fileLabel1.setText("Current file:");
javax.swing.GroupLayout filePanelLayout = new javax.swing.GroupLayout(filePanel);
filePanel.setLayout(filePanelLayout);
filePanelLayout.setHorizontalGroup(
filePanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(filePanelLayout.createSequentialGroup()
.addGap(94, 94, 94)
.addComponent(fileLabel)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGroup(filePanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(filePanelLayout.createSequentialGroup()
.addGap(20, 20, 20)
.addComponent(fileLabel1)
.addContainerGap(562, Short.MAX_VALUE)))
);
filePanelLayout.setVerticalGroup(
filePanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(filePanelLayout.createSequentialGroup()
.addContainerGap()
.addComponent(fileLabel, javax.swing.GroupLayout.DEFAULT_SIZE, 30, Short.MAX_VALUE)
.addContainerGap())
.addGroup(filePanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(filePanelLayout.createSequentialGroup()
.addContainerGap()
.addComponent(fileLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, 30, Short.MAX_VALUE)
.addContainerGap()))
);
recordPanel.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));
firstTextField.setText("jTextField1");
lastTextField.setText("jTextField1");
salesTextField.setText("jTextField1");
dateTextField.setText("jTextField1");
jLabel1.setText("First Last Sales Date");
previousButton.setText("<<");
previousButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
previousButtonActionPerformed(evt);
}
});
nextButton.setText(">>");
nextButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
nextButtonActionPerformed(evt);
}
});
javax.swing.GroupLayout recordPanelLayout = new javax.swing.GroupLayout(recordPanel);
recordPanel.setLayout(recordPanelLayout);
recordPanelLayout.setHorizontalGroup(
recordPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(recordPanelLayout.createSequentialGroup()
.addContainerGap()
.addGroup(recordPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(recordPanelLayout.createSequentialGroup()
.addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 415, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(0, 203, Short.MAX_VALUE))
.addGroup(recordPanelLayout.createSequentialGroup()
.addComponent(firstTextField, javax.swing.GroupLayout.PREFERRED_SIZE, 91, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(lastTextField, javax.swing.GroupLayout.PREFERRED_SIZE, 91, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(salesTextField, javax.swing.GroupLayout.PREFERRED_SIZE, 91, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(dateTextField)))
.addContainerGap())
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, recordPanelLayout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(previousButton, javax.swing.GroupLayout.PREFERRED_SIZE, 53, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(nextButton, javax.swing.GroupLayout.PREFERRED_SIZE, 53, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(31, 31, 31))
);
recordPanelLayout.setVerticalGroup(
recordPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(recordPanelLayout.createSequentialGroup()
.addGap(29, 29, 29)
.addComponent(jLabel1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(recordPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(firstTextField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(lastTextField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(salesTextField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(dateTextField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 35, Short.MAX_VALUE)
.addGroup(recordPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(previousButton)
.addComponent(nextButton))
.addGap(27, 27, 27))
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
this.setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(filePanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(recordPanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(filePanel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(recordPanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addContainerGap())
);
}// </editor-fold>
private void previousButtonActionPerformed(java.awt.event.ActionEvent evt) {
if (curIndex > 0) {
curIndex--;
} else if (curIndex == 0) {
curIndex = 4;
}
customer.get(curIndex);
}
private void nextButtonActionPerformed(java.awt.event.ActionEvent evt) {
if (curIndex < 4) {
curIndex++;
} else if (curIndex == 4) {
curIndex = 0;
}
customer.get(curIndex);
}
// Variables declaration - do not modify
private javax.swing.JTextField dateTextField;
private javax.swing.JLabel fileLabel;
private javax.swing.JLabel fileLabel1;
private javax.swing.JPanel filePanel;
private javax.swing.JTextField firstTextField;
private javax.swing.JLabel jLabel1;
private javax.swing.JTextField lastTextField;
private javax.swing.JButton nextButton;
private javax.swing.JButton previousButton;
private javax.swing.JPanel recordPanel;
private javax.swing.JTextField salesTextField;
// End of variables declaration
}
가 salesForce'이 같은 일을하는 것'customer''으로 시작하기 위해 전화를하지만이 declearing하는'가되지 않습니다 의미합니다 생성자에 로컬로 salesForce' 그것을 넘어서 사용할 수 있습니다. 파일에서 내용을 읽는 것 같지만 아무 것도하지 않습니다 ... – MadProgrammer
하지만, 내가해야 할 고객을 없애면, 내 refreshUI() 메소드의 맨 위에있는 get (curIndex)을 얻습니다. 범위에서 벗어날까요? – Tonno22
네, 어떻게 읽습니까?하지만 텍스트 필드의 다른 값에 할당 할 수 있습니다. 파일에 5 세트의 정보가 있습니다. firstTextField에 성을, lastTextField에 성을, 판매에 어떻게 할당 할 수 있습니까? salesTextfield, 등등? – Tonno22