试图结合代码

时间：2011-03-23 13:51:05

标签： java eclipse user-interface swing

下面的第一个代码可以使用，它包含一个添加客户GUI。它下面的代码我从我创建的另一个GUI中复制，但是遇到了一些问题。在下面第一个代码的第30行，我有一个“CREATE CUSTOMERS”部分，其中我想添加下面说明的第二个代码。首先，我不确定我需要在哪里添加它。其次，可能有一些代码需要添加，我不确定是什么或在哪里。我已经尝试过让longets时间将这两者结合起来而没有运气。我对Java编码真的很陌生，它让我永远地达到了这一点。

第一个有效的代码：

import java.awt.*;
import javax.swing.*;

import java.awt.event.*;
import java.util.*;
import java.io.*;

public class SwimCalc extends JFrame implements ActionListener{
private JTabbedPane jtabbedPane;
private JPanel Customers;


JTextArea NameTextCustomers, ExistTextCustomers, NameTextContractors, ExistTextContractors;

public SwimCalc(){
setTitle("Volume Calculator");
setSize(300, 200);

JPanel topPanel = new JPanel();
topPanel.setLayout( new BorderLayout() );
getContentPane().add( topPanel );

createCustomers();

jtabbedPane = new JTabbedPane();
jtabbedPane.addTab("Customers", Customers);
topPanel.add(jtabbedPane, BorderLayout.CENTER);
              }

/*        CREATE CUSTOMERS        */

public void createCustomers(){
    Customers = new JPanel();
    Customers.setLayout( null );

    NameTextCustomers = new JTextArea();
    NameTextCustomers.setBounds(10, 10, 350, 150);
    NameTextCustomers.setLineWrap(true);
    Customers.add(NameTextCustomers);

    JButton Exit = new JButton("Exit");
    Exit.setBounds(30,170,80,20);
    Exit.addActionListener(this);
    Exit.setBackground(Color.white);
    Customers.add(Exit);

    JButton AddCustomers = new JButton("Add Customer");
    AddCustomers.setBounds(130,170,120,20);
    AddCustomers.setBackground(Color.white);
    Customers.add(AddCustomers);

    JButton Refresh = new JButton("Refresh");
    Refresh.setBounds(260,170,80,20);
    Refresh.setBackground(Color.white);
    Customers.add(Refresh);

    ExistTextCustomers = new JTextArea();
    ExistTextCustomers.setBounds(10, 200, 350, 60);
    ExistTextCustomers.setLineWrap(true);
    Customers.add(ExistTextCustomers);

}

public void actionPerformed(ActionEvent event){

                                             }
private void Exit_pressed(){
System.exit(0);
                           }

public static void main(String[] args){
JFrame frame = new SwimCalc();
frame.setSize(380, 350);
frame.setVisible(true);
}
}

现在这里是我想要添加到上面代码中的代码：

addCustomer.setMnemonic('a'); 

addCustomer.addActionListener(new ActionListener() 
{ 
public void actionPerformed(ActionEvent e) 
{

new Customer("Customer"); 
}
} );
custPanel.add(custArea); 
custPanel.add(addCustomer); 

custPanel.add(custRefButton); 
custPanel.add(custMessage); 
custRefButton.setMnemonic('R'); 

custRefButton.addActionListener(new ActionListener() 
{ 
public void actionPerformed(ActionEvent e) 
{ 
custMessage.setText(""); 
try
{ 
File custOpen = new File("customer.txt"); 
FileReader custAreaIn = new FileReader(custOpen); 
custArea.read(custAreaIn, custOpen.toString()); 
custMessage.setText("The file exists and can be read from."); 
} 
catch (IOException e3){ 
custMessage.setText("The file could not be read. " + e3.getMessage()); 
} 
} 
} ); 
return custPanel; 
} 

class Customer extends JFrame 
{ 
private String[] states = {"AL", "AK", "AZ", "AR", "CA", "CO", "CT", "DE", 
"FL", "GA", "HI", "ID", "IL", "IN", "IA", "KS", "KY", "LA", "ME", 
"MD", "MA", "MI", "MN", "MS", "MO", "MT", "NE", "NV", "NH", "NJ", 
"NM", "NY", "NC", "ND", "OH", "OK", "OR", "PA", "RI", "SC", "SD", 
"TN", "TX", "UT", "VT", "VA", "WA", "WV", "WI", "WY"}; 
private JComboBox StateList = new JComboBox(states); 
private JTextField NameText = new JTextField(25); 
private JTextField AddressText = new JTextField(25); 
private JTextField CityText = new JTextField(25); 
private JTextField ZipText = new JTextField(9); 
private JTextField PhoneText = new JTextField(10); 
private JTextField PopMessageText = new JTextField(30); 
private static final long serialVersionUID = 1L; 

private AddCustButtonHandler addCusHandler = new AddCustButtonHandler(); 

public Customer(String who) 
{ 
popUpWindow(who); 
} 
public void popUpWindow(final String who) { 

final JFrame popWindow; 
popWindow = new JFrame(who); 
popWindow.setSize(425, 350); 
popWindow.setLocation(100, 100); 
popWindow.setVisible(true); 
setDefaultCloseOperation(EXIT_ON_CLOSE); 

Container c = new Container(); 

popWindow.add(c); 

c.setLayout(new FlowLayout()); 

JPanel one = new JPanel(); 
JPanel two = new JPanel(); 
JPanel three = new JPanel(); 
JPanel four = new JPanel(); 
JPanel five = new JPanel(); 
JPanel six = new JPanel(); 

one.add(new JLabel(who + " Name ")); 
one.add(NameText); 
two.add(new JLabel("Address ")); 
two.add(AddressText); 
three.add(new JLabel("City ")); 
three.add(CityText); 
four.add(new JLabel("State ")); 
StateList.setSelectedIndex(0); 
four.add(StateList); 
four.add(new JLabel("ZIP")); 
four.add(ZipText); 
four.add(new JLabel("Phone")); 
four.add(PhoneText); 
JButton addwho = new JButton("Add " + who); 
addwho.setMnemonic('A'); 
JButton close = new JButton("Close"); 
close.setMnemonic('C'); 
JButton deleteFile = new JButton("Delete File"); 
deleteFile.setMnemonic('D'); 
five.add(addwho); 
five.add(close); 
five.add(deleteFile); 
PopMessageText.setEditable(false); 
PopMessageText.setHorizontalAlignment(JTextField.CENTER); 

six.add(PopMessageText); 
c.add(one); 
c.add(two); 
c.add(three); 
c.add(four); 
c.add(five); 
c.add(six); 

deleteFile.setToolTipText("Delete File"); 
addwho.setToolTipText("Add "+ who); 
close.setToolTipText("Close"); 

if (who == "Customer") 
addwho.addActionListener(addCusHandler);
close.addActionListener(new ActionListener() { 
public void actionPerformed(ActionEvent e) { 
NameText.setText(""); 
AddressText.setText(""); 
CityText.setText(""); 
ZipText.setText(""); 
PhoneText.setText(""); 
PopMessageText.setText(""); 
popWindow.dispose(); 
} 
} ); 
deleteFile.addActionListener(new ActionListener() { 
public void actionPerformed(ActionEvent e) { 
PopMessageText.setText(""); 
if (who == "Customer") { 
File file = new File("Customer.txt"); 
boolean cusFileDeleted = file.delete(); 
if (cusFileDeleted) { 
PopMessageText 
.setText("Customer file has been deleted"); 
} else { 
PopMessageText 
.setText("There was an erron in deleting file"); 
} 
} 
} 
} ); 
}
class AddCustButtonHandler implements ActionListener { 
public void actionPerformed(ActionEvent addCusHandler) { 
int StateIndex; 
try { 
File file = new File("Customer.txt"); 

boolean success = file.createNewFile(); 

if (success) { 
PopMessageText 
.setText("Customer.txt file created file added"); 
} else if (file.canWrite()) { 
PopMessageText 
.setText("Writing data to Customer.txt, file added"); 
} else { 
PopMessageText.setText("Cannot create file: Customer.txt"); 
} 
try { 
FileWriter fileW = new FileWriter("Customer.txt", true); 
fileW.write(NameText.getText()); 
fileW.write(","); 
fileW.write(AddressText.getText()); 
fileW.write(","); 
fileW.write(CityText.getText()); 
fileW.write(","); 
StateIndex = StateList.getSelectedIndex(); 
fileW.write(states[StateIndex]); 
fileW.write(","); 
fileW.write(ZipText.getText()); 
fileW.write(","); 
fileW.write(PhoneText.getText()); 
fileW.write("\r\n"); 
fileW.close(); 
PopMessageText.setText("A new Customer has been added!"); 

FileReader fileR = new FileReader("Customer.txt"); 
BufferedReader buffIn = new BufferedReader(fileR); 

String textData = buffIn.readLine(); 
buffIn.close(); 
} 
catch (IOException e1) { 
JOptionPane.showMessageDialog(null, e1.getMessage(), "ERROR", 2);
} 
NameText.setText(""); 
AddressText.setText(""); 
CityText.setText(""); 
ZipText.setText(""); 
PhoneText.setText(""); 
} catch (IOException e1) { 
} 

} 
} 
}

1 个答案:

答案 0 :(得分：0)

您真的需要了解Model View Controller separation。现在编写的代码在业务逻辑（例如，美国国家的数组）中与视图逻辑（即所有UI元素）混合在一起。此外，这些类名称错误 - 客户显然不是JFrame，因此不应将您的类称为客户。应该命名为CustomerFrame。

其次，您的UI本身需要工作;不要像这样调用“setBounds”，而应该使用LayoutManager来处理元素的大小和位置。我建议您学习MigLayout，但首先要看看Layout Manager tutorials online。

最后，你真的需要开始掌控你正在做的事情并真正理解你复制的代码在做什么。否则你就像Cargo cult programmer那样只是在没有真正理解任何代码的情况下复制和粘贴。

做那些事情，再次尝试问题，然后如果你仍然遇到一个新问题。

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