demojtextfieldframe.java

精通NetBeans光盘源代码,很好很好的资料

/*
 * DemoJTextFieldFrame.java
 *
 * Created on 2006年3月15日, 下午8:47
 */

package org.netbeans.swing.container;

/**
 *
 * @author  boyingking
 */
public class DemoJTextFieldFrame extends javax.swing.JFrame {
    
    /** Creates new form DemoJTextFieldFrame */
    public DemoJTextFieldFrame() {
        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() {
        jLabelMessage = new javax.swing.JLabel();
        jTextFieldTest = new javax.swing.JTextField();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("JTextField\u5e94\u7528\u793a\u4f8b");
        jLabelMessage.setFont(new java.awt.Font("宋体", 0, 18));
        jLabelMessage.setText("\u4f60\u8fd8\u6ca1\u6709\u8f93\u5165\u4efb\u4f55\u5185\u5bb9");

        jTextFieldTest.setColumns(60);
        jTextFieldTest.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextFieldTestActionPerformed(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()
                .addContainerGap()
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(layout.createSequentialGroup()
                        .add(10, 10, 10)
                        .add(jTextFieldTest, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 168, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                    .add(jLabelMessage, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 196, Short.MAX_VALUE))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(18, 18, 18)
                .add(jLabelMessage, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 34, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .add(15, 15, 15)
                .add(jTextFieldTest, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(26, Short.MAX_VALUE))
        );
        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void jTextFieldTestActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jTextFieldTestActionPerformed
        String getMessage=this.jTextFieldTest.getText().trim();
        if(getMessage.equals(""))
        {
             this.jLabelMessage.setText("你还没有输入任何内容");
        }
        else
        {
            this.jLabelMessage.setText("你输入的内容是："+getMessage);
        }
       
    }//GEN-LAST:event_jTextFieldTestActionPerformed
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new DemoJTextFieldFrame().setVisible(true);
            }
        });
    }
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JLabel jLabelMessage;
    private javax.swing.JTextField jTextFieldTest;
    // End of variables declaration//GEN-END:variables
    
}