We would like to know how to add new tab to JTabbedPane.
import java.awt.BorderLayout; import java.awt.Dimension; import java.awt.FlowLayout; // w ww .j a v a 2 s . com import javax.swing.JButton; import javax.swing.JEditorPane; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTabbedPane; import javax.swing.JTextField; public class Main { JTabbedPane tabbedPane = new JTabbedPane(); JButton add = new JButton("Add Tab"); int i = 1; public Main() { tabbedPane.add(new JScrollPane(createTabbedPanel()), "Tab " + i); add.addActionListener(e -> { i++; tabbedPane.add(new JScrollPane(createTabbedPanel()), "Tab " + i); }); JFrame frame = new JFrame(); JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.LEADING)); buttonPanel.add(add); frame.add(buttonPanel, BorderLayout.PAGE_START); frame.add(tabbedPane); frame.pack(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setLocationRelativeTo(null); frame.setVisible(true); } private JPanel createTabbedPanel() { JPanel panel = new JPanel(new BorderLayout()); JTextField field = new JTextField(50); JEditorPane pane = new JEditorPane(); pane.setPreferredSize(new Dimension(700, 500)); panel.add(field, BorderLayout.NORTH); panel.add(pane, BorderLayout.CENTER); return panel; } public static void main(String[] args) { new Main(); } }