如何將滾動條添加到JTabbedPane。基本上我有一個管理面板作爲TAB（JTabbedPane）

Question

//這裏是一個面板位於一個框架作爲第二個選項卡上我想添加一個滾動條。

import java.awt.Color; 
import java.awt.Image; 

import javax.swing.JLabel; 
import javax.swing.JPanel; 
import javax.swing.JScrollBar; 
import javax.swing.JScrollPane; 
public class admin extends JPanel 
{ 
    private static final long serialVersionUID = 1L; 
JLabel lb; 
Image image; 
JScrollPane js; 
public admin() //admin panel is invoked by a frame. 
{ 

    setBackground(Color.white); 

    add(new admsign()); // admsign is another panel located on admin which is a simple form. 


// if you want me to post the code for admsign() then tell me. 




} 
} 

//我認爲這是沒有必要的。

Answer 1

「如何將滾動條添加到JTabbedPane的。基本上，我有進一步附着在框架上的TAB（JTabbedPane中）的管理面板」

基本上，你不。您纏繞JScollPane的JPanel周圍被添加到JTabbedPane

JTabbedPane tabbed = new JTabbedPane(); 
JPanel panel1 = new JPanel(); 
JPanel panel2 = new JPanel(); 

tabbed.add(new JScrollPane(panel1), "Panel 1"); 
tabbed.add(new JScrollPane(panel2), "Panel 2"); 

import java.awt.*; 
import javax.swing.*; 

public class TestTabbedScroll { 

    public static void main(String[] args) { 
     SwingUtilities.invokeLater(new Runnable(){ 
      public void run() { 
       JPanel panel = new JPanel(); 
       Box box = Box.createVerticalBox(); 
       for (int i = 0; i < 100; i++) { 
        box.add(new JLabel("Hello, StackOverflow!")); 
       } 
       panel.add(box); 
       panel.setBackground(Color.CYAN); 

       JTabbedPane tab = new JTabbedPane(); 
       JScrollPane scroll = new JScrollPane(panel); 
       scroll.setPreferredSize(new Dimension(300, 300)); 
       tab.add(scroll, "Panel 1"); 

       JOptionPane.showMessageDialog(
         null, tab, "Test Tabbed", JOptionPane.PLAIN_MESSAGE); 
      } 
     }); 
    } 
}