您好我正在尝试在Jlist上显示对象的ArrayList。在显示ArrayList时，我试图通过GUI向ArrayList添加或删除对象。 1）如何在Jlist上显示ArrayList对象？ 2）如何通过在JList上选择对象来删除对象？
import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.util.ArrayList;
import java.util.Vector;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JTabbedPane;
import javax.swing.ListSelectionModel;
import javax.swing.JList;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import javax.swing.DefaultListCellRenderer;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.JTextPane;
import javax.swing.JRadioButton;
import javax.swing.JLabel;
import java.awt.event.ActionListener;
public class DriverFrame extends JFrame implements ItemListener{
private JPanel contentPane;
private JList driverlist;
private ArrayList drivers= new ArrayList<Driver>();
JTextField textFieldFirstName;
JTextField textFieldLastName;
JTextField textFieldTruckNumber;
JTextField textFieldTrailerNumber;
private JTextField textField;
private JTextField textField_1;
private JTextField textField_2;
private JTextField textField_3;
private JTextField textField_4;
private JTextField textField_5;
private JTextField textField_6;
private JTextField textField_7;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
DriverFrame frame = new DriverFrame();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public DriverFrame() {
Driver guy1= new Driver("Jeff","Blank","4125","1234",1400);
Driver guy2= new Driver("Marcus","Geralds","0093","1203",1800);
Driver guy3= new Driver("Steve","Wemmings","2010","2046",2100);
Driver guy4= new Driver("Kyle","Patricks","8427","5625",900);
Driver guy5= new Driver("Ficel","Metter","9124","4536",5500);
setBackground(Color.WHITE);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 500, 500);
setResizable(false);
contentPane = new JPanel();
contentPane.setBackground(Color.WHITE);
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JTabbedPane tabbedPane = new JTabbedPane(JTabbedPane.TOP);
tabbedPane.setBackground(Color.WHITE);
tabbedPane.setBounds(5, 5, 495, 480);
contentPane.add(tabbedPane);
//Drivers TabbedPan ********
JPanel Drivers = new JPanel();
Drivers.setBackground(Color.WHITE);
tabbedPane.addTab("Drivers", null, Drivers, null);
Drivers.setLayout(null);
//List to display drivers
JList<Object> driverlist = new JList<>(drivers.toArray(new String[0]));
driverlist.setBackground(Color.WHITE);
driverlist.setVisibleRowCount(8);
driverlist.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
Drivers.add(driverlist);
driverlist.setBounds(221,6,247,234);
JTextPane txtpnFirstName = new JTextPane();
txtpnFirstName.setText("First name");
txtpnFirstName.setBounds(5, 20, 140, 15);
Drivers.add(txtpnFirstName);
txtpnFirstName.setEditable(false);
textFieldFirstName = new JTextField();
textFieldFirstName.setBounds(5, 40, 140, 30);
Drivers.add(textFieldFirstName);
textFieldFirstName.setColumns(10);
JTextPane txtpnLastName = new JTextPane();
txtpnLastName.setText("Last Name");
txtpnLastName.setBounds(5, 75, 140, 15);
Drivers.add(txtpnLastName);
txtpnLastName.setEditable(false);
textFieldLastName = new JTextField();
textFieldLastName.setBounds(5, 95, 140, 30);
Drivers.add(textFieldLastName);
textFieldLastName.setColumns(10);
JTextPane txtpnTruckNumber = new JTextPane();
txtpnTruckNumber.setText("Truck Number");
txtpnTruckNumber.setBounds(5, 130, 140, 15);
Drivers.add(txtpnTruckNumber);
txtpnTruckNumber.setEditable(false);
textFieldTruckNumber = new JTextField();
textFieldTruckNumber.setBounds(5, 150, 140, 30);
Drivers.add(textFieldTruckNumber);
textFieldTruckNumber.setColumns(10);
JTextPane txtpnTrailerNumber = new JTextPane();
txtpnTrailerNumber.setText("Trailer Number");
txtpnTrailerNumber.setBounds(5, 185, 140, 15);
Drivers.add(txtpnTrailerNumber);
txtpnTrailerNumber.setEditable(false);
textFieldTrailerNumber = new JTextField();
textFieldTrailerNumber.setBounds(5, 205, 140, 30);
Drivers.add(textFieldTrailerNumber);
textFieldTrailerNumber.setColumns(10);
JButton btnAddDriver = new JButton("Add Driver");
btnAddDriver.setBounds(5, 285, 117, 29);
Drivers.add(btnAddDriver);
JButton btnNewButton = new JButton("Delete Driver");
btnNewButton.setBounds(302, 285, 117, 29);
Drivers.add(btnNewButton);
btnAddDriver.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
Driver blah = new Driver();
blah.setFirst(textFieldFirstName.getText());
blah.setLast(textFieldLastName.getText());
blah.setTnum(textFieldTruckNumber.getText());
blah.setTrailer(textFieldTrailerNumber.getText());
drivers.add(blah);
System.out.println(blah.printDriver());
System.out.println(drivers.size());
//drivers.remove(example);
}
});
//End of DriversPane******
//New Expenses Tab*****
JPanel NewExpense = new JPanel();
tabbedPane.addTab("New Expense", null, NewExpense, null);
JButton buttontest = new JButton();
NewExpense.add(buttontest);
//End of New Expense Tab****
//Income Tab****
JPanel Income = new JPanel();
Income.setBackground(Color.WHITE);
tabbedPane.addTab("Income", null, Income, null);
Income.setLayout(null);
JComboBox comboBox_3 = new JComboBox();
comboBox_3.setBounds(6, 70, 138, 27);
Income.add(comboBox_3);
JTextPane txtpnDriver_3 = new JTextPane();
txtpnDriver_3.setText("Driver:");
txtpnDriver_3.setBounds(6, 42, 42, 16);
Income.add(txtpnDriver_3);
JTextPane txtpnLoadLocationstate = new JTextPane();
txtpnLoadLocationstate.setText("Load Location(State): ");
txtpnLoadLocationstate.setBounds(6, 161, 138, 16);
Income.add(txtpnLoadLocationstate);
textField_6 = new JTextField();
textField_6.setBounds(6, 205, 130, 26);
Income.add(textField_6);
textField_6.setColumns(10);
JTextPane txtpnLoadAmount = new JTextPane();
txtpnLoadAmount.setText("Load Amount $$:");
txtpnLoadAmount.setBounds(6, 299, 108, 16);
Income.add(txtpnLoadAmount);
textField_7 = new JTextField();
textField_7.setBounds(6, 339, 130, 26);
Income.add(textField_7);
textField_7.setColumns(10);
//End of Income Tab****
//Results Tab***
JPanel Results = new JPanel();
Results.setBackground(Color.WHITE);
tabbedPane.addTab("Result", null, Results, null);
Results.setLayout(null);
JComboBox comboBox_4 = new JComboBox();
comboBox_4.setBounds(6, 69, 140, 27);
Results.add(comboBox_4);
JTextPane txtpnDriver_4 = new JTextPane();
txtpnDriver_4.setText("Driver:");
txtpnDriver_4.setBounds(6, 42, 140, 16);
Results.add(txtpnDriver_4);
JTextArea txtrHowMuchTo = new JTextArea();
txtrHowMuchTo.setText("How much to pay driver. How much are the expenses of the driver");
txtrHowMuchTo.setBounds(6, 124, 234, 304);
Results.add(txtrHowMuchTo);
JTextPane txtpnDriverInformation = new JTextPane();
txtpnDriverInformation.setText("Driver Information");
txtpnDriverInformation.setBounds(16, 108, 140, 16);
Results.add(txtpnDriverInformation);
JTextPane txtpnCompanyInfo = new JTextPane();
txtpnCompanyInfo.setText("Company Info:");
txtpnCompanyInfo.setBounds(414, 80, 178, 16);
Results.add(txtpnCompanyInfo);
JTextArea txtrIncome = new JTextArea();
txtrIncome.setText("Income Expenses");
txtrIncome.setBounds(390, 124, 294, 304);
Results.add(txtrIncome);
//End of Results Tab****
}
@Override
public void itemStateChanged(ItemEvent e) {
// TODO Auto-generated method stub
}
}