이 코드에서 누락 된 부분을 파악할 수 없습니다. "ButtonListiner는 추상이 아니며 ActionListener에서 추상 메소드 actionPerformed (ActionEvent)를 대체하지 않습니다." 하지만 난 actionPerformed 사용하고 클래스 및 메서드 위에 @Override 시도하고 여전히 작동하지 않습니다. SubmitButtonListener 클래스와 ExitButtonListener 클래스에서 모두 같습니다.청취자는 추상 메소드가 아니며 추상 메소드를 재정의하지 않습니다. 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);
}
내 문제는 사전의 도움을
/**
* 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();
}
}
감사합니다> 여기> 여기
/**
* 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);
}
}
}
을 시작합니다.
달성하고자하는 것은 무엇입니까? –