e829. 获得和设置JTabbedPane 的卡片

 // To create a tabbed pane, see e828 创建JTabbedPane
    
    // Get the index of the currently selected tab
    int selIndex = pane.getSelectedIndex();
    
    // Select the last tab
    selIndex = pane.getTabCount()-1;
    pane.setSelectedIndex(selIndex);

 

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