Button Click應該調用一個帶有文本面板的標籤面板（Dynamic）

Question

我正在尋找一個示例，其中點擊不同的按鈕應該打開不同的標籤，並且結果/輸出應該寫入其中的文本面板。

文本面板應嵌入在選項卡內。

而且我找實例，而不是完整的解決方案

Answer 1

你應該叫JTabbedPane.setSelectedIndex您的按鈕監聽器裏，試試下面的例子：

import java.awt.BorderLayout; 
import javax.swing.JButton; 
import javax.swing.JFrame; 
import javax.swing.JLabel; 
import javax.swing.JTabbedPane; 
import javax.swing.SwingUtilities; 
import javax.swing.UIManager; 
import javax.swing.UnsupportedLookAndFeelException; 

public class Main 
{ 
    private static int numberOfTabs = 1; 

    public static void main(String[] args) 
    { 
     SwingUtilities.invokeLater(new Runnable() 
     { 
      public void run() 
      { 
       try 
       { 
        UIManager.setLookAndFeel(
          "javax.swing.plaf.nimbus.NimbusLookAndFeel"); 
       } 
       catch (ClassNotFoundException | InstantiationException 
         | IllegalAccessException 
         | UnsupportedLookAndFeelException e) 
       { 
       } 
       JFrame frame = new JFrame(); 
       frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
       frame.setBounds(100, 100, 400, 500); 

       JButton addNewTab = new JButton("Add new Tab"); 

       JTabbedPane tab = new JTabbedPane(); 

       addNewTab.addActionListener(e -> { 
        tab.add(new JLabel("new tab " + numberOfTabs + " created."), 
          "tab " + numberOfTabs); 
        tab.setSelectedIndex(numberOfTabs - 1); 
        numberOfTabs++; 
       }); 
       frame.add(addNewTab, BorderLayout.NORTH); 

       frame.add(tab, BorderLayout.CENTER); 
       frame.setVisible(true); 
      } 
     }); 
    } 
}