这是代码，Account是一些不做任何特殊操作的基本类。我已经尝试了一切让这个动作听众工作，我知道我错过了一些愚蠢的事情。我在jigloo制作了GUI，我认为我的问题在于实际的主要问题？我需要添加一些东西吗？或者我错了。从来没有做过Gui的东西。这是我参加的第一个编程课，教授似乎认为我应该能够毫无问题地做到这一点。有任何想法吗？
import java.awt.event.ActionEvent;
import javax.swing.JButton;
import javax.swing.JEditorPane;
import javax.swing.JTextField;
import javax.swing.WindowConstants;
import javax.swing.SwingUtilities;
import java.awt.event.ActionListener;
@SuppressWarnings("serial")
public class Button extends javax.swing.JFrame implements ActionListener
{
public JButton LoginButton;
public JTextField bankinfoButton;
public JButton transgerButton;
public JButton jButton1;
public JTextField moneytextfield;
public JTextField sendto;
public JEditorPane account1;
public JTextField accountpw;
public JTextField accountname;
public JButton BalanceButton;
public JButton WithdrawButton;
public JButton DepositButton;
public JButton LogoutButton;
/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
public Account theAc = new Account();
public Account[] accountList = new Account[10];
public String tempAccountName;
public String tempAccountPw;
public int tempIndex;
public double tempBalance;
public Transfer theT = new Transfer();
public Transfer[] transferList = new Transfer[10];
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
Button inst = new Button();
inst.setLocationRelativeTo(null);
inst.setVisible(true);
}
});
}
public Button() {
super();
initGUI();
}
private void initGUI() {
try {
setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
getContentPane().setLayout(null);
{
LoginButton = new JButton();
getContentPane().add(LoginButton);
LoginButton.setText("Login");
LoginButton.setBounds(12, 12, 120, 44);
}
{
LogoutButton = new JButton();
getContentPane().add(LogoutButton);
LogoutButton.setText("Log Out");
LogoutButton.setBounds(137, 12, 120, 44);
}
{
bankinfoButton = new JTextField();
getContentPane().add(bankinfoButton);
bankinfoButton.setText("Displays bank account information");
bankinfoButton.setBounds(336, 215, 277, 189);
}
{
DepositButton = new JButton();
getContentPane().add(DepositButton);
DepositButton.setText("Deposit");
DepositButton.setBounds(12, 150, 120, 50);
}
{
WithdrawButton = new JButton();
getContentPane().add(WithdrawButton);
WithdrawButton.setText("Withdraw");
WithdrawButton.setBounds(151, 150, 120, 50);
}
{
BalanceButton = new JButton();
getContentPane().add(BalanceButton);
BalanceButton.setText("Balance");
BalanceButton.setBounds(12, 223, 120, 52);
}
{
transgerButton = new JButton();
getContentPane().add(transgerButton);
transgerButton.setText("Transfer");
transgerButton.setBounds(12, 298, 120, 52);
}
{
accountname = new JTextField();
getContentPane().add(accountname);
accountname.setText("Please Enter account name");
accountname.setBounds(12, 76, 193, 23);
}
{
accountpw = new JTextField();
getContentPane().add(accountpw);
accountpw.setText("Please Enter Account Password");
accountpw.setBounds(12, 115, 193, 23);
}
{
account1 = new JEditorPane();
getContentPane().add(account1);
account1.setText("Please enter account you would like to transfer funds to");
account1.setBounds(0, 370, 313, 34);
}
{
moneytextfield = new JTextField();
getContentPane().add(moneytextfield);
moneytextfield.setText("Enter cash here");
moneytextfield.setBounds(163, 258, 99, 23);
}
{
jButton1 = new JButton();
getContentPane().add(jButton1);
jButton1.setText("Create Account");
jButton1.setBounds(268, 12, 130, 44);
}
pack();
this.setSize(651, 460);
} catch (Exception e) {
//add your error handling code here
e.printStackTrace();
}
}
public void actionPerformed(ActionEvent e) {
if(e.getSource() == jButton1)
{
bankinfoButton.setText("Hello");
}
if(e.getActionCommand().equals("Create Account"))
{
if(theAc==null)
{
bankinfoButton.setText("You must first Log in");
}
if(accountpw.getText() != null)
{
theAc.setPassword(accountpw.getText());
bankinfoButton.setText("New Account Created!");
accountList[Account.getNumAccount()-1] = theAc;
bankinfoButton.setText("Account Created!");
bankinfoButton.setText(theAc.toString());
}
else
{
bankinfoButton.setText("You must enter a password to create an account.");
}
}
if(e.getActionCommand().equals("Print Account List")){
for(int i = 0; i <accountList.length;i++)
{
bankinfoButton.setText(accountList[i].toString());
}
}
if(e.getActionCommand().equals("Deposit"))
{
if(theAc==null)
{
bankinfoButton.setText("You must first Log in");
}
theAc.deposit(Double.parseDouble(moneytextfield.getText()));
bankinfoButton.setText("Your new balance is: " + String.valueOf(theAc.getBalance()));
}
if(e.getActionCommand().equals("Withdrawl"))
{
if(theAc==null)
{
bankinfoButton.setText("You must first Log in");
}
//theAc.withdraw(Double.parseDouble(moneytextfield.getText()));
bankinfoButton.setText("Your new balance is: " + String.valueOf(theAc.getBalance()));
}
if(e.getActionCommand().equals("Balance"))
{
if(theAc==null)
{
bankinfoButton.setText("You must first Log in");
}
bankinfoButton.setText("Your balance is: " + String.valueOf(theAc.getBalance()));
}
if(e.getActionCommand().equals("Login"))
{
if(theAc==null)
{
bankinfoButton.setText("You must first Log in");
}
for(int i = 0;i<10;i++)
{
if(accountname.getText().equals(accountList[i].getName()))
{
tempAccountName = accountList[i].getName();
}
for(int n = 0;i<10;i++)
{
if(accountpw.getText().equals(accountList[i].getPassword()))
{
tempAccountPw = accountList[i].getPassword();
if(i==n)
n= tempIndex;
else
{
bankinfoButton.setText("Invalide username or password");
}
}
}
theAc = accountList[tempIndex];
}
if(e.getActionCommand().equals("Log Out"))
{
if(theAc==null)
{
bankinfoButton.setText("You must first Log in");
}
theAc = null;
bankinfoButton.setText("You have logged off");
}
if(e.getActionCommand().equals("Transfer"))
{
theT = transferList[tempIndex];
theT.setHistory(accountname.getText(), sendto.getText(), Double.parseDouble(moneytextfield.getText()));
}
}
}
}
答案 0 :(得分：0)
您永远不会在ActionListener注册任何组件：
jButton1.addActionListener(this);
完全不同的注意事项考虑使用layout manager来管理定位＆amp;组件的大小。