demojlistframe.java

精通NetBeans光盘源代码,很好很好的资料

/*
 * DemoJListFrame.java
 *
 * Created on 2006年3月18日, 下午8:02
 */

package org.netbeans.swing.container;

import javax.swing.ListModel;

/**
 *
 * @author  boyingking
 */
public class DemoJListFrame extends javax.swing.JFrame {
    
    /** Creates new form DemoJListFrame */
    public DemoJListFrame() {
        initComponents();
    }
    
    /** 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.
     */
    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
    private void initComponents() {
        jScrollPane1 = new javax.swing.JScrollPane();
        jListCountryList = new javax.swing.JList();
        jButtonAdd = new javax.swing.JButton();
        jLabelActionMessage = new javax.swing.JLabel();
        jTextFieldCountryName = new javax.swing.JTextField();
        jButtonDelete = new javax.swing.JButton();
        jLabelList = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("JList\u5e94\u7528\u793a\u4f8b");
        jListCountryList.addListSelectionListener(new javax.swing.event.ListSelectionListener() {
            public void valueChanged(javax.swing.event.ListSelectionEvent evt) {
                jListCountryListValueChanged(evt);
            }
        });

        jScrollPane1.setViewportView(jListCountryList);

        jButtonAdd.setText("\u6dfb\u52a0");
        jButtonAdd.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButtonAddActionPerformed(evt);
            }
        });

        jLabelActionMessage.setFont(new java.awt.Font("宋体", 0, 24));
        jLabelActionMessage.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jLabelActionMessage.setText("\u4f60\u8fd8\u6ca1\u6709\u8fdb\u884c\u4efb\u4f55\u64cd\u4f5c");

        jButtonDelete.setText("\u5220\u9664");
        jButtonDelete.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButtonDeleteActionPerformed(evt);
            }
        });

        jLabelList.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jLabelList.setText("\u56fd\u5bb6\u5217\u8868");

        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(layout.createSequentialGroup()
                        .add(30, 30, 30)
                        .add(jLabelList, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 68, Short.MAX_VALUE)
                        .add(54, 54, 54))
                    .add(org.jdesktop.layout.GroupLayout.TRAILING, layout.createSequentialGroup()
                        .addContainerGap()
                        .add(jScrollPane1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 84, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                        .add(38, 38, 38)))
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(org.jdesktop.layout.GroupLayout.TRAILING, layout.createSequentialGroup()
                        .add(44, 44, 44)
                        .add(jButtonAdd)
                        .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED, 99, Short.MAX_VALUE)
                        .add(jButtonDelete)
                        .add(78, 78, 78))
                    .add(layout.createSequentialGroup()
                        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
                            .add(jTextFieldCountryName, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 309, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                            .add(org.jdesktop.layout.GroupLayout.LEADING, jLabelActionMessage, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 301, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                        .addContainerGap())))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(18, 18, 18)
                .add(jLabelList, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 24, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(layout.createSequentialGroup()
                        .add(jLabelActionMessage, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 104, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                        .add(20, 20, 20)
                        .add(jTextFieldCountryName, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED, 28, Short.MAX_VALUE)
                        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                            .add(jButtonDelete)
                            .add(jButtonAdd))
                        .add(23, 23, 23))
                    .add(layout.createSequentialGroup()
                        .add(jScrollPane1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 184, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                        .addContainerGap())))
        );
        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void jButtonDeleteActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButtonDeleteActionPerformed
// TODO add your handling code here:
        String countryName=(String)this.jListCountryList.getSelectedValue();
        if(countryName!=null)
        {
          this.imageVector.remove(countryName);
        this.jListCountryList.setListData(imageVector);
        this.jLabelActionMessage.setText("你将"+countryName+"从列表中删除");          
        }
        else
        {
         this.jLabelActionMessage.setText("请先选择一个选项");      
        }
    }//GEN-LAST:event_jButtonDeleteActionPerformed

    private void jListCountryListValueChanged(javax.swing.event.ListSelectionEvent evt) {//GEN-FIRST:event_jListCountryListValueChanged
      String choosedCountry=(String)this.jListCountryList.getSelectedValue();
      this.jLabelActionMessage.setText("你从列表中选择"+choosedCountry+"选项");
    }//GEN-LAST:event_jListCountryListValueChanged

    private void jButtonAddActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButtonAddActionPerformed
// TODO add your handling code here:
        String countryName=this.jTextFieldCountryName.getText().trim();
        if(countryName!=null&&!countryName.equals(""))
        {
         this.imageVector.add(countryName);
        this.jLabelActionMessage.setText("你将"+countryName+"添加到列表中");
        this.jListCountryList.setListData(this.imageVector);           
        }
        else
        {
        this.jLabelActionMessage.setText("请先输入内容再添加");    
        }
        
    }//GEN-LAST:event_jButtonAddActionPerformed
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new DemoJListFrame().setVisible(true);
            }
        });
    }

    private java.util.Vector imageVector = new java.util.Vector ();
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton jButtonAdd;
    private javax.swing.JButton jButtonDelete;
    private javax.swing.JLabel jLabelActionMessage;
    private javax.swing.JLabel jLabelList;
    private javax.swing.JList jListCountryList;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTextField jTextFieldCountryName;
    // End of variables declaration//GEN-END:variables
    
}