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import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JTextField;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.awt.event.ActionEvent;
import javax.swing.JScrollPane;
import javax.swing.ScrollPaneConstants;
public class JLISTNEW {
private JFrame frame;
private JTextField textField;
private ArrayList<String> listArray = new ArrayList<String> ();
private DefaultListModel<String> listmodel= new DefaultListModel<String>();
private JScrollPane scrollPane;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
JLISTNEW window = new JLISTNEW();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
*/
public JLISTNEW() {
initialize();
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
frame = new JFrame();
frame.setBounds(100, 100, 450, 300);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
scrollPane = new JScrollPane();
scrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
scrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
scrollPane.setBounds(86, 116, 269, 97);
frame.getContentPane().add(scrollPane);
JList list = new JList();
scrollPane.setViewportView(list);
JButton btnNewButton = new JButton("New button");
btnNewButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
listmodel.clear();
listArray.add(textField.getText());
for(int i=0; i < listArray.size(); i++){
listmodel.add(i, listArray.get(i));
}
}
});
btnNewButton.setBounds(241, 36, 89, 23);
frame.getContentPane().add(btnNewButton);
textField = new JTextField();
textField.setBounds(64, 37, 86, 20);
frame.getContentPane().add(textField);
textField.setColumns(10);
}
} |
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