JTabbedPane -> setSelectedIndex funzt nicht

[mr.willow]

Hallo
weiß einer, wie man nach dem Ausführen eines Projects die "default-" Regestriekarte einstellen kann, die selected ist?

bsp.:
das sind regestrierkarten

/start\ /reg1\ /reg2\ /reg3\

..und es soll zu BEginn immer start ausgewählt sein.

wo muss das start.setSelectedIndex(0); hin??

Gruß mr.willow

 

[jgh]

nachdem du deine "Registerkarten" der JTabbedPane geadded hast, legst du fest, welche selected sein soll...in dem Beispiel von oracle in Zeile 74

/*
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 * modification, are permitted provided that the following conditions
 * are met:
 *
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 *     notice, this list of conditions and the following disclaimer.
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 *     from this software without specific prior written permission.
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 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * TabbedPaneDemo.java requires one additional file:
 *   images/middle.gif.
 */

import javax.swing.JTabbedPane;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.JComponent;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.KeyEvent;

public class TabbedPaneDemo extends JPanel {
	public TabbedPaneDemo() {
		super(new GridLayout(1, 1));

		JTabbedPane tabbedPane = new JTabbedPane();
		ImageIcon icon = createImageIcon("images/middle.gif");

		JComponent panel1 = makeTextPanel("Panel #1");
		tabbedPane.addTab("Tab 1", icon, panel1, "Does nothing");
		tabbedPane.setMnemonicAt(0, KeyEvent.VK_1);

		JComponent panel2 = makeTextPanel("Panel #2");
		tabbedPane.addTab("Tab 2", icon, panel2, "Does twice as much nothing");
		tabbedPane.setMnemonicAt(1, KeyEvent.VK_2);

		JComponent panel3 = makeTextPanel("Panel #3");
		tabbedPane.addTab("Tab 3", icon, panel3, "Still does nothing");
		tabbedPane.setMnemonicAt(2, KeyEvent.VK_3);

		JComponent panel4 = makeTextPanel("Panel #4 (has a preferred size of 410 x 50).");
		panel4.setPreferredSize(new Dimension(410, 50));
		tabbedPane.addTab("Tab 4", icon, panel4, "Does nothing at all");
		tabbedPane.setMnemonicAt(3, KeyEvent.VK_4);

		tabbedPane.setSelectedIndex(1);
		// Add the tabbed pane to this panel.
		add(tabbedPane);

		// The following line enables to use scrolling tabs.
		tabbedPane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT);
	}

	protected JComponent makeTextPanel(String text) {
		JPanel panel = new JPanel(false);
		JLabel filler = new JLabel(text);
		filler.setHorizontalAlignment(JLabel.CENTER);
		panel.setLayout(new GridLayout(1, 1));
		panel.add(filler);
		return panel;
	}

	/** Returns an ImageIcon, or null if the path was invalid. */
	protected static ImageIcon createImageIcon(String path) {
		java.net.URL imgURL = TabbedPaneDemo.class.getResource(path);
		if (imgURL != null) {
			return new ImageIcon(imgURL);
		} else {
			System.err.println("Couldn't find file: " + path);
			return null;
		}
	}

	/**
	 * Create the GUI and show it. For thread safety, this method should be
	 * invoked from the event dispatch thread.
	 */
	private static void createAndShowGUI() {
		// Create and set up the window.
		JFrame frame = new JFrame("TabbedPaneDemo");
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		// Add content to the window.
		frame.add(new TabbedPaneDemo(), BorderLayout.CENTER);

		// Display the window.
		frame.pack();
		frame.setVisible(true);
	}

	public static void main(String[] args) {
		// Schedule a job for the event dispatch thread:
		// creating and showing this application's GUI.
		SwingUtilities.invokeLater(new Runnable() {
			public void run() {
				// Turn off metal's use of bold fonts
				UIManager.put("swing.boldMetal", Boolean.FALSE);
				createAndShowGUI();
			}
		});
	}
}

 

[bERt0r]

Nachdem du den letzten Tab geaddet hast, machst du setSelectedIndex()

		JTabbedPane tabbedPane = new JTabbedPane(JTabbedPane.TOP);
		
		JPanel panel1 = new JPanel();
		tabbedPane.addTab("Tab 1", panel1);
		
		JPanel panel2 = new JPanel();
		tabbedPane.addTab("Tab 2", panel2);
		
		JPanel panel3 = new JPanel();
		tabbedPane.addTab("Tab 3", panel3);
		
		tabbedPane.setSelectedIndex(1);

 

[mr.willow]

danke für die schnelle antwort !!!
arbeite (noch) mit dem gui builder in netbeans...muss die stelle finden

DANKE !!!