问题已经解决。。

Question

本帖最后由 douzhiwt 于 2011-08-10 14:16:18 编辑

Answer 1

import java.awt.*;
import javax.swing.*;public class zb3 extends javax.swing.JFrame {   /** Creates new form zb */
   public zb3() {
       initComponents();
       ms();
   }
   private void ms(){
       jpAll=new JPanel();
       jpAll.setSize(100,100);
       jpAll.setLayout(new GridLayout(4, 1));
       jScrollPane1.add(jpAll);       JButton jb = new JButton("aaa");
       jb.setPreferredSize(new Dimension(100, 200));
       jpAll.add(jb);       JButton jb2 = new JButton("bbbb");
 
       jpAll.add(jb2);       JButton jb3 = new JButton("ccccccc");       jpAll.add(jb3);       JButton jb4 = new JButton("Ddddd");       jpAll.add(jb4);
       jpAll.show();
   }   /** This method is called from within the constructor to
    * initialize the form.
    * WARNING: Do NOT modify this code. The content of this method is
    * always regenerated by the Form Editor.
    */
   @SuppressWarnings("unchecked")
   // <editor-fold defaultstate="collapsed" desc="Generated Code">
   private void initComponents() {       jScrollPane1 = new javax.swing.JScrollPane(ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
       jlbTitle1 = new javax.swing.JLabel();
       jlbTishi = new javax.swing.JLabel();
       jlbTitle2 = new javax.swing.JLabel();       setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);       jScrollPane1.setName("jScrollPane1"); // NOI18N
       jScrollPane1.getViewport().setBackground(Color.red);
       jScrollPane1.setVerticalScrollBar(new JScrollBar());       jlbTitle1.setText("版号版名");
       jlbTitle1.setName("jlbTitle1"); // NOI18N       jlbTishi.setText("提示信息");
       jlbTishi.setName("jlbTishi"); // NOI18N       jlbTitle2.setText("版号版名");
       jlbTitle2.setName("jlbTitle2"); // NOI18N       javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
       getContentPane().setLayout(layout);
       layout.setHorizontalGroup(
           layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
           .addGroup(layout.createSequentialGroup()
               .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                   .addGroup(layout.createSequentialGroup()
                       .addGap(79, 79, 79)
                       .addComponent(jlbTitle2, javax.swing.GroupLayout.PREFERRED_SIZE, 62, javax.swing.GroupLayout.PREFERRED_SIZE)
                       .addGap(131, 131, 131)
                       .addComponent(jlbTishi)
                       .addGap(143, 143, 143)
                       .addComponent(jlbTitle1, javax.swing.GroupLayout.PREFERRED_SIZE, 62, javax.swing.GroupLayout.PREFERRED_SIZE))
                   .addGroup(layout.createSequentialGroup()
                       .addContainerGap()
                       .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 306, Short.MAX_VALUE)))
               .addContainerGap())
       );
       layout.setVerticalGroup(
           layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
           .addGroup(layout.createSequentialGroup()
               .addContainerGap()
               .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                   .addComponent(jlbTitle2)
                   .addComponent(jlbTishi)
                   .addComponent(jlbTitle1))
               .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
               .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 306, Short.MAX_VALUE)
               .addContainerGap())
       );       pack();
   }// </editor-fold>   /**
   * @param args the command line arguments
   */
   public static void main(String args[]) {
       java.awt.EventQueue.invokeLater(new Runnable() {
           public void run() {
               new zb3().setVisible(true);
               
           }
       });
   }   // Variables declaration - do not modify
   private javax.swing.JScrollPane jScrollPane1;
   private javax.swing.JLabel jlbTishi;
   private javax.swing.JLabel jlbTitle1;
   private javax.swing.JLabel jlbTitle2;
   // End of variables declaration
   private javax.swing.JPanel jpAll;
}