demojlistframe.java

基于netbeans的java桌面应用程序合集

/*
 * DemoJListFrame.java
 *
 * Created on 2007年7月30日, 下午3:39
 */

package org.Adam;
import java.util.Vector;
/**
 *
 * @author  Administrator
 */
public class DemoJListFrame extends javax.swing.JFrame {
    private Vector imageVector=new Vector();
    /** 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=" 生成的代码 ">//GEN-BEGIN:initComponents
    private void initComponents() {
        jScrollPane1 = new javax.swing.JScrollPane();
        jListCountryList = new javax.swing.JList();
        jLabelList = new javax.swing.JLabel();
        jLabelActionMessage = new javax.swing.JLabel();
        jTextFieldCountryName = new javax.swing.JTextField();
        jButtonAdd = new javax.swing.JButton();
        jButtonDelete = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        jListCountryList.addListSelectionListener(new javax.swing.event.ListSelectionListener() {
            public void valueChanged(javax.swing.event.ListSelectionEvent evt) {
                jListCountryListValueChanged(evt);
            }
        });

        jScrollPane1.setViewportView(jListCountryList);

        jLabelList.setText("\u56fd\u5bb6\u5217\u8868");

        jLabelActionMessage.setText("\u4f60\u8fd8\u6ca1\u6709\u8fdb\u884c\u4efb\u4f55\u64cd\u4f5c");

        jTextFieldCountryName.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextFieldCountryNameActionPerformed(evt);
            }
        });

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

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

        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(36, 36, 36)
                .add(jScrollPane1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 72, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED, 79, Short.MAX_VALUE)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(layout.createSequentialGroup()
                        .add(jTextFieldCountryName, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 150, Short.MAX_VALUE)
                        .add(63, 63, 63))
                    .add(layout.createSequentialGroup()
                        .add(jButtonAdd)
                        .add(31, 31, 31)
                        .add(jButtonDelete)
                        .add(68, 68, 68))
                    .add(org.jdesktop.layout.GroupLayout.TRAILING, layout.createSequentialGroup()
                        .add(jLabelActionMessage, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 190, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                        .add(23, 23, 23))))
            .add(layout.createSequentialGroup()
                .add(50, 50, 50)
                .add(jLabelList)
                .addContainerGap(302, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(org.jdesktop.layout.GroupLayout.TRAILING, layout.createSequentialGroup()
                .addContainerGap(57, Short.MAX_VALUE)
                .add(jLabelList)
                .add(27, 27, 27)
                .add(jScrollPane1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 186, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .add(57, 57, 57))
            .add(layout.createSequentialGroup()
                .add(115, 115, 115)
                .add(jLabelActionMessage, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 35, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .add(38, 38, 38)
                .add(jTextFieldCountryName, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 29, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .add(36, 36, 36)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jButtonAdd)
                    .add(jButtonDelete))
                .addContainerGap(66, Short.MAX_VALUE))
        );
        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void jTextFieldCountryNameActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jTextFieldCountryNameActionPerformed
// TODO 将在此处添加您的处理代码：
        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_jTextFieldCountryNameActionPerformed

    private void jButtonDeleteActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButtonDeleteActionPerformed
// TODO 将在此处添加您的处理代码：
        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 jButtonAddActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButtonAddActionPerformed
// TODO 将在此处添加您的处理代码：
        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

    private void jListCountryListValueChanged(javax.swing.event.ListSelectionEvent evt) {//GEN-FIRST:event_jListCountryListValueChanged
// TODO 将在此处添加您的处理代码：
        String choosedCountry=(String)this.jListCountryList.getSelectedValue();
        this.jLabelActionMessage.setText("你从列表中选择"+choosedCountry+"选项");
    }//GEN-LAST:event_jListCountryListValueChanged
    
    /**
     * @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);
            }
        });
    }
    
    // 变量声明 - 不进行修改//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;
    // 变量声明结束//GEN-END:variables
    
}