このコードでは何が欠けているのか分かりません。 「ButtonListinerは抽象メソッドではなく、ActionListenerの抽象メソッドactionPerformed(ActionEvent)をオーバーライドしません」と続きます。私はactionPerformedを使用しています。クラスとメソッドの上に@Overrideを試しましたが、まだ動作していません。 SubmitButtonListenerクラスとExitButtonListenerクラスの両方で同じです。リスナーは抽象メソッドではなく、抽象メソッドをオーバーライドしません。JAVA
package customerinserterproblem_alliebeckman;
import java.awt.BorderLayout;
import java.awt.event.ActionListener;
import java.sql.SQLException;
import javafx.event.ActionEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
public class CustomerInserterProblem_AllieBeckman extends JFrame{
CustomerInfoPanel customerInfoPanel; // Panel for customer information
JPanel buttonPanel; // Panel for buttons
/**
* Constructor
*/
public CustomerInserterProblem_AllieBeckman()
{
// Set the window title
setTitle("Add Customer");
// Specify an action for the close button
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// Create a CustomerInfoPanelObject
customerInfoPanel = new CustomerInfoPanel();
// Build the buttonPanel object
buildButtonPanel();
// Add the panels to the content pane
add(customerInfoPanel, BorderLayout.CENTER);
add(buttonPanel, BorderLayout.SOUTH);
// Pack and display the window
pack();
setVisible(true);
}
/**
* buildButtonPanel method
*/
private void buildButtonPanel()
{
// Create a panel for the buttons
buttonPanel = new JPanel();
// Create a submit button and add an action listener
JButton submitButton = new JButton("Submit");
submitButton.addActionListener(new SubmitButtonListener());
// Create an Exit button
JButton exitButton = new JButton("Exit");
exitButton.addActionListener(new ExitButtonListener());
// Add the buttons to the panel.
buttonPanel.add(submitButton);
buttonPanel.add(exitButton);
}
私の問題は、事前に助けを
/**
* Private inner class that handles Exit Button events
*/
private class ExitButtonListener implements ActionListener
{
public void actionPerformed(ActionEvent e){
// Exit the app
System.exit(0);
}
}
/**
* main method
*/
public static void main(String[] args){
new CustomerInserterProblem_AllieBeckman();
}
}
おかげ>ここ>ここ
/**
* Private inner class that handles submit button events
*/
private class SubmitButtonListener implements ActionListener
{
public void actionPerformed(ActionEvent e){
try
{
// Get the customer information from the text fields
String custNum = customerInfoPanel.getCustNum();
String name = customerInfoPanel.getName();
String address = customerInfoPanel.getAddress();
String city = customerInfoPanel.getCity();
String state = customerInfoPanel.getState();
String zip = customerInfoPanel.getZip();
// Create a CustomerTableManager object
CustomerTableManager ctManager = new CustomerTableManager();
// Insert the record
ctManager.insert(custNum, name, address, city, state, zip);
// clear the text fields
customerInfoPanel.clear();
// Let the user know the record was added.
JOptionPane.showMessageDialog(null, "Record Added");
}
catch (SQLException ex){
ex.printStackTrace();
System.exit(0);
}
}
}
を開始します。
達成したいことは何ですか? –