JTabbedPane
- A JTabbedPane is a component can extend JComponent class and we can able to see one tab at a time.
- Each tab is associated with a single component that can be displayed when the tab is selected.
- A JTabbedPane can generate a ChangeListener interface when a tab is selected.
- It is also possible to insert multiple tabs into a single JTabbedPane and the important methods of JTabbedPane are addTab(), fireStateChanged(), getTabPlacement(), setSelectedIndex(), getTabCount() and etc.
Example
import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; public class NestedJTabbedPaneTest extends JFrame { public NestedJTabbedPaneTest() { setTitle("Nested JTabbedPane test"); setLayout(new BorderLayout()); JTabbedPane tabbedPane = new JTabbedPane(); add(BorderLayout.CENTER, tabbedPane); createNestedTab(tabbedPane, 1); setSize(375, 250); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setLoc*ationRelativeTo(null); setVisible(true); } protected void createNestedTab(JTabbedPane jtp, int count) { if (count > 5) return; JTabbedPane tp = new JTabbedPane(); tp.setTabPlacement(getNextOrientation(jtp.getTabPlacement())); jtp.addTab("Tab #" + count, tp); createNestedTab(tp, count+1); } private int getNextOrientation(int tabPlacement) { if (tabPlacement == JTabbedPane.TOP) return JTabbedPane.RIGHT; if (tabPlacement == JTabbedPane.RIGHT) return JTabbedPane.BOTTOM; if (tabPlacement == JTabbedPane.BOTTOM) return JTabbedPane.LEFT; else return JTabbedPane.TOP; } public static void main(String []args) { new NestedJTabbedPaneTest(); } }