如果有人能给我一些关于如何继续的指导，那么试图让它在EnterTransaction jpane中， - 一旦用户输入了相关信息，包括accountID，日期时间就是创建事务（使用java.util.Date），并且一旦输入帐户ID，就会显示帐户持有人的姓名，并显示所有详细信息，并输入交易金额（其中为负数）号码从帐户中扣除）
问题： - 链接列表和散列映射是收集客户端和事务数据的最佳方式吗？
- 在createCustomerAccount和enterTransaction方法上找到一个完整的块，不太确定我做错了什么/我在做什么 - 任何帮助都会很棒
public class MainMenu extends JFrame {
// data fields
private ArrayList<Client> clientCollection = new ArrayList<Client>();
private JPanel contentPane;
HashMap<String,CurrentAccount> CAccMap= new HashMap<String,CurrentAccount>(); //enter a key and get an output
LinkedList<Transaction> TransactionList=new LinkedList<Transaction>(); //for transactions
//myList.add("a");
//Launch the application.
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
MainMenu frame = new MainMenu();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public MainMenu() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(new GridLayout(3, 0, 0, 0));
JButton btnReadClientData = new JButton("Read Client Data");
btnReadClientData.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
readClientData();
}
});
contentPane.add(btnReadClientData);
JButton btnCreateCurrentAccount = new JButton("Create Current Account");
btnCreateCurrentAccount.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
createCurrentAccount();
}
});
contentPane.add(btnCreateCurrentAccount);
JButton btnEnterTransaction = new JButton("Transaction");
btnEnterTransaction.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent arg0){
//enterTransaction();
}
});
contentPane.add(btnEnterTransaction);
}
/*
public void enterTransaction()
{
String accountID = JOptionPane.showInputDialog(this,"Enter valid accountID", "Add CurrentAccount", 0);
if(CAccMap.CAccMap(accountID)){
JOptionPane.showMessageDialog(this, "Account ID: " + accountID ,"Details",0);
CAccMap.getCurrentAccount(accountID);
}
else{
JOptionPane.showMessageDialog(this, "No account Found " ,"Error",0);
}
}
//public void isCurrentAccount(accountID){
// cAccMap(contains key(accountid)
//}
public void getCurrentAccount(String accountID){
CurrentAccount CAccMap = CurrentAccount.get(accountID);
Client C = CAccMap.getClient();
String famName = C.getFamilyName();
System.out.println(famName);
}
*/
public void readClientData() {
JFileChooser chooser = new JFileChooser();
chooser.setMultiSelectionEnabled(false);
int opt = chooser.showOpenDialog(this);
if (opt == JFileChooser.APPROVE_OPTION) {
// read data from file
File infile = chooser.getSelectedFile();
System.out.println("Reading data from " + infile.getAbsolutePath());
try {
BufferedReader rdr = new BufferedReader(new FileReader(infile));
String line;
int id = 1;
line = rdr.readLine();
while (line != null) {
processNewClient(id, line);
id++;
line = rdr.readLine();
}
rdr.close();
} catch (Exception e) {
JOptionPane.showMessageDialog(this, "File Not Found",
"Unable to open " + infile.getAbsolutePath(),
JOptionPane.ERROR_MESSAGE);
}
}
}
public void processNewClient(int id, String data) {
String[] parts = data.split(" ");
try {
String familyName = parts[0];
String firstName = parts[1];
int houseNumber = Integer.parseInt(parts[2]);
String postCode = parts[3];
if(validateNewClient(familyName, firstName, houseNumber, postCode)){
Client c = new Client(id, familyName, firstName, houseNumber,
postCode);
System.out.println("Added " + c);
clientCollection.add(id, c);
}
} catch (NumberFormatException nfe) {
JOptionPane.showMessageDialog(this, "Invalid house number",
"Error", JOptionPane.ERROR_MESSAGE);
}
}
public boolean validateNewClient(String familyName, String firstName, int houseNumber, String postCode)
{
if(familyName.equals (""))
{
JOptionPane.showMessageDialog(this, "Error, family Name not entered", "Error", JOptionPane.ERROR_MESSAGE);
return false;
}
else if(firstName.equals (""))
{
JOptionPane.showMessageDialog(this, "Error, First Name not entered", "Error", JOptionPane.ERROR_MESSAGE);
return false;
}
else if(houseNumber <= 0)
{
JOptionPane.showMessageDialog(this, "Error, House number invalid", "Error", JOptionPane.ERROR_MESSAGE);
return false;
}
else if(postCode.equals (""))/*[A-Z]{1,2}[0-9][0-9A-Z]? [0-9]{3}[A-Z]{4-5}*/
{
JOptionPane.showMessageDialog(this, "Error, Post code not in correct format", "Error", JOptionPane.ERROR_MESSAGE);
return false;
}
else{
return true;
}
}
public void createCurrentAccount() {
Object[] clients = clientCollection.toArray();
Client cl;
Object clientObj = JOptionPane.showInputDialog(this, "Select client", "Add Current Account", JOptionPane.INFORMATION_MESSAGE, null, clients, clients[0]);
cl = (Client) clientObj;
System.out.println("Selected " + cl);
String sortCode = "01-02-03";
String accountID = JOptionPane.showInputDialog(this,
"Enter valid accountID", "Add CurrentAccount", 0);
if (Account.validateID(accountID)) {
CurrentAccount ca = new CurrentAccount(cl,accountID, sortCode, 0);
CAccMap.put(accountID,ca);//Using the .put method any newly created accounts are added to the hashmap and linked with their client
System.out.println("Account Created");
} else {
JOptionPane.showMessageDialog(this, "Invalid account ID " + accountID,
"Error", JOptionPane.ERROR_MESSAGE);
}
}
}
}