日历.java

200多个自己编的java程序,大家可以学一下.

/*
 * 日历.java
 *
 * Created on 2004年9月18日, 下午10:08
 */

/**
 *
 * @author  litertiger
 */
public class 日历 extends javax.swing.JApplet {
    
    /** Initializes the applet 日历 */
    public void init() {
        initComponents();
    }
    
    /** This method is called from within the init() method to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    private void initComponents() {//GEN-BEGIN:initComponents
        jTextField1 = new javax.swing.JTextField();
        jLabel1 = new javax.swing.JLabel();
        jButton1 = new javax.swing.JButton();
        jLabel2 = new javax.swing.JLabel();

        getContentPane().setLayout(null);

        getContentPane().add(jTextField1);
        jTextField1.setBounds(100, 10, 130, 20);

        jLabel1.setText("\u8bf7\u8f93\u5165\u6708\u4efd");
        getContentPane().add(jLabel1);
        jLabel1.setBounds(20, 10, 70, 30);

        jButton1.setFont(new java.awt.Font("MS Sans Serif", 1, 36));
        jButton1.setText("\u63d0\u4ea4");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        getContentPane().add(jButton1);
        jButton1.setBounds(50, 50, 160, 40);

        getContentPane().add(jLabel2);
        jLabel2.setBounds(20, 100, 220, 50);

    }//GEN-END:initComponents

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed

         int x=Integer.parseInt(jTextField1.getText().trim());  
         switch(x){
            case 1:jLabel2.setText("1月31天");break;
            case 2:jLabel2.setText("2月28天");break;
            case 3:jLabel2.setText("3月31天");break;
            case 4:jLabel2.setText("4月30天");break;
            case 5:jLabel2.setText("5月31天");break;
            case 6:jLabel2.setText("6月30天");break;
            case 7:jLabel2.setText("7月31天");break;
            case 8:jLabel2.setText("8月31天");break;
            case 9:jLabel2.setText("9月30天");break;
            case 10:jLabel2.setText("10月31天");break;
            case 11:jLabel2.setText("11月30天");break;
            case 12:jLabel2.setText("12月31天");break;
            default:jLabel2.setText(" input error");
        }
        // TODO 将在此处增加您的处理代码：
    }//GEN-LAST:event_jButton1ActionPerformed
    
    
    // 变量声明 - 不进行修改//GEN-BEGIN:variables
    private javax.swing.JButton jButton1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JTextField jTextField1;
    // 变量声明结束//GEN-END:variables
    
}