Hallo,
hab mir gerade ein Beispiel aus "Handbuch der Java Programmierung raus gesucht" um ein wenig mit JList herum zu experimentieren.
Problem ist, dass ich beim drücken keine Ausgabe der selektierten Optionen aus JList auf die Konsole erhalte.
Ich hoffe man kann mir weiter helfen. Danke schon einmal vorab!
hab mir gerade ein Beispiel aus "Handbuch der Java Programmierung raus gesucht" um ein wenig mit JList herum zu experimentieren.
Java:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import com.sap.mw.jco.*;
public class ViewerJList
extends JFrame
implements Constants, ActionListener
{
//JTextArea resultField = new JTextArea();
String[] resultTableColumn = {"Project Nummer", "Project Definition", "Description"};
String[][] resultTableRow = new String[1000][3];
JTable resultTable = new JTable(resultTableRow, resultTableColumn);
JScrollPane resultTableScrollpane = new JScrollPane(resultTable, ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
//Daten fuer die Liste in JList
static final String[] DATA = {
"PROJECT_DEFINITION", "DESCRIPTION", "MASK_ID", "RESPONSIBLE_NO", "APPLICANT_NO", "COMP_CODE", "BUS_AREA", "CONTROLLING_AREA", "PROFIT_CTR", "PROJECT_CURRENCY", "PROJECT_CURRENCY_ISO", "NETWORK_ASSIGNMENT", "START",
"FINISH", "PLANT", "CALENDAR", "PLAN_BASIC", "PLAN_FCST", "TIME_UNIT", "TIME_UNIT_ISO", "NETWORK_PROFILE", "PROJECT_PROFILE", "PROJECT_STOCK", "OBJECTCLASS", "STATISTICAL", "TAXJURCODE", "PS_ZSCHM", "PS_SCHDPRF", "PSFM_PRF",
"BP_PPROFIL"
};
JList liste;
public ViewerJList(String name)
{
super(name);
buildGui();
buildMenuBar();
}
public String buildGui()
{
JTextField usernameTextField, maxrowsTextField;
JPasswordField passwordField;
JList liste;
JButton connectButton, getListButton, selectButton;
JLabel usernameLabel, passwordLabel, statusLabel, indicatorLabel, maxrowsLabel;
getContentPane().setLayout(null);
//The username label
usernameLabel = new JLabel("Username");
usernameLabel.setLocation(12,12);
usernameLabel.setSize(80,20);
getContentPane().add(usernameLabel);
//The password label
usernameLabel = new JLabel("Password");
usernameLabel.setLocation(12,40);
usernameLabel.setSize(80,20);
getContentPane().add(usernameLabel);
//The status label
statusLabel = new JLabel("Status");
statusLabel.setLocation(12,68);
statusLabel.setSize(80,20);
getContentPane().add(statusLabel);
//The indicator label
indicatorLabel = new JLabel("Disconnected");
indicatorLabel.setLocation(120,68);
indicatorLabel.setSize(80,20);
indicatorLabel.setForeground(Color.red);
getContentPane().add(indicatorLabel);
//The username field
usernameTextField = new JTextField();
usernameTextField.setLocation(120,12);
usernameTextField.setSize(100,20);
getContentPane().add(usernameTextField);
//The password field
passwordField = new JPasswordField();
passwordField.setLocation(120,40);
passwordField.setSize(100,20);
getContentPane().add(passwordField);
//The result table
resultTableScrollpane.setLocation(282,12);
resultTableScrollpane.setSize(600,430);
getContentPane().add(resultTableScrollpane);
//The connect button
connectButton = new JButton("Connect");
connectButton.setMnemonic('C');
connectButton.setLocation(12, 96);
connectButton.setSize(100,30);
getContentPane().add(connectButton);
//The getList button
getListButton = new JButton("getList");
getListButton.setMnemonic('G');
getListButton.setLocation(12, 230);
getListButton.setSize(100,30);
getContentPane().add(getListButton);
//JList
liste = new JList(DATA);
liste.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
liste.setLocation(12, 280);
liste.setSize(200,70);
JScrollPane listeScrollPane = new JScrollPane(liste, ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
getContentPane().add(liste);
//Select Button in JList
selectButton = new JButton("Select");
selectButton.addActionListener(this);
selectButton.setLocation(12, 350);
selectButton.setSize(100,30);
getContentPane().add(selectButton);
//The maxrows label
maxrowsLabel = new JLabel("MAXROWS");
maxrowsLabel.setLocation(12,200);
maxrowsLabel.setSize(80,20);
//maxrowsLabel.setForeground(Color.red);
getContentPane().add(maxrowsLabel);
//The maxrows field
maxrowsTextField = new JTextField("20");
maxrowsTextField.setLocation(100,200);
maxrowsTextField.setSize(100,20);
getContentPane().add(maxrowsTextField);
return maxrowsTextField.getText();
}
public void buildMenuBar()
{
// Create menubar and menues
JMenuBar menueBar = new JMenuBar();
setJMenuBar(menueBar);
JMenu fileMenu = new JMenu("File");
JMenu sapMenu = new JMenu("SAP");
JMenu helpMenu = new JMenu("Help");
menueBar.add(fileMenu);
menueBar.add(sapMenu);
menueBar.add(helpMenu);
// Add actions to Menu
JMenuItem connectAction = new JMenuItem("Connect");
JMenuItem disconnectAction = new JMenuItem("Disconnect");
JMenuItem exitAction = new JMenuItem("Exit");
JMenuItem versionAction = new JMenuItem("Version");
// Create shortcuts Alt+Key
connectAction.setMnemonic('C');
connectAction.setAccelerator(KeyStroke.getKeyStroke('C', InputEvent.ALT_DOWN_MASK));
disconnectAction.setMnemonic('D');
disconnectAction.setAccelerator(KeyStroke.getKeyStroke('D', InputEvent.ALT_DOWN_MASK));
exitAction.setMnemonic('E');
exitAction.setAccelerator(KeyStroke.getKeyStroke('E', InputEvent.ALT_DOWN_MASK));
// Build menu
fileMenu.add(exitAction);
sapMenu.add(connectAction);
sapMenu.addSeparator();
sapMenu.add(disconnectAction);
helpMenu.add(versionAction);
}
public void actionPerformed(ActionEvent Event)
{
String cmd = Event.getActionCommand();
if (cmd.equals("Ausgabe")) {
System.out.println("-");
ListModel lm = liste.getModel();
int[] sel = liste.getSelectedIndices();
for (int i = 0; i < sel.length; i++) {
String value = (String)lm.getElementAt(sel[i]);
System.out.println(" " + value);
}
}
}
}Problem ist, dass ich beim drücken keine Ausgabe der selektierten Optionen aus JList auf die Konsole erhalte.
Ich hoffe man kann mir weiter helfen. Danke schon einmal vorab!
