addcoursejpanel.java

用Java做的一个学生考试分析程序

/*
 * AddCourseJPanel.java
 *
 * Created on 2007年12月13日, 下午2:08
 */

package 考试成绩分析程序;
import javax.swing.*;
/**
 *
 * @author  drawen
 */
public class AddCourseJPanel extends javax.swing.JPanel {    
    /** Creates new form AddCourseJPanel */
    public AddCourseJPanel() {
        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() {
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();
        jLabel4 = new javax.swing.JLabel();
        courseId = new javax.swing.JTextField();
        courseName = new javax.swing.JTextField();
        courseCredit = new javax.swing.JTextField();
        coursePeriod = new javax.swing.JTextField();
        confirm = new javax.swing.JButton();
        reset = new javax.swing.JButton();
        jLabel5 = new javax.swing.JLabel();

        jLabel1.setText("\u8bfe\u7a0b\u7f16\u53f7\uff1a");

        jLabel2.setText("\u8bfe\u7a0b\u540d\u79f0\uff1a");

        jLabel3.setText("\u8bfe\u7a0b\u5b66\u5206\uff1a");

        jLabel4.setText("\u8bfe\u7a0b\u5b66\u65f6\uff1a");

        courseId.setText("1001");

        courseName.setText("\u9762\u5411\u5bf9\u8c61\u6280\u672f\u8bbe\u8ba1");

        courseCredit.setText("2.5");

        coursePeriod.setText("60");

        confirm.setText("\u786e\u5b9a");
        confirm.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                confirmButtonActionListener(evt);
            }
        });

        reset.setText("\u91cd\u7f6e");

        jLabel5.setText("\u589e\u52a0\u8bfe\u7a0b\u4fe1\u606f");

        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(this);
        this.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(31, 31, 31)
                        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING, false)
                            .add(jLabel1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 94, Short.MAX_VALUE)
                            .add(jLabel2, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .add(jLabel3, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .add(jLabel4, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                        .add(43, 43, 43)
                        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING, false)
                            .add(courseName)
                            .add(coursePeriod)
                            .add(courseCredit)
                            .add(courseId, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 122, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)))
                    .add(layout.createSequentialGroup()
                        .add(77, 77, 77)
                        .add(confirm)
                        .add(57, 57, 57)
                        .add(reset))
                    .add(layout.createSequentialGroup()
                        .add(118, 118, 118)
                        .add(jLabel5)))
                .addContainerGap(110, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(19, 19, 19)
                .add(jLabel5)
                .add(19, 19, 19)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel1)
                    .add(courseId, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(39, 39, 39)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel2)
                    .add(courseName, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(30, 30, 30)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel3)
                    .add(courseCredit, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(23, 23, 23)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
                    .add(jLabel4)
                    .add(coursePeriod, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(22, 22, 22)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(confirm)
                    .add(reset))
                .addContainerGap(30, Short.MAX_VALUE))
        );
    }// </editor-fold>//GEN-END:initComponents

    private void confirmButtonActionListener(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_confirmButtonActionListener
        String id,name;
        float credit;
        int period;
        try{
            id=courseId.getText();
            name=courseName.getText();
            credit=Float.parseFloat(courseCredit.getText());
            period=Integer.parseInt(coursePeriod.getText());
            if((credit<=0)||(period<=0))
                JOptionPane.showMessageDialog(null,"输入数据范围有误！",
                        "警告",JOptionPane.ERROR_MESSAGE);
            else{
                course=new Course(id,name,credit,period);
                if(course.saveToFile())
                    JOptionPane.showMessageDialog(null,"已经成功增加课程信息！",
                        "增加成功",JOptionPane.WARNING_MESSAGE);
                else
                    JOptionPane.showMessageDialog(null,"课程信息已经存在，或课程编号重复！",
                        "增加失败",JOptionPane.ERROR_MESSAGE);
                    
            }            
        }catch(Exception e){
            JOptionPane.showMessageDialog(null,"输入数据格式有误！",
                    "警告",JOptionPane.ERROR_MESSAGE);
        }
    }//GEN-LAST:event_confirmButtonActionListener

    private Course course;
    // 变量声明 - 不进行修改//GEN-BEGIN:variables
    private javax.swing.JButton confirm;
    private javax.swing.JTextField courseCredit;
    private javax.swing.JTextField courseId;
    private javax.swing.JTextField courseName;
    private javax.swing.JTextField coursePeriod;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLabel jLabel5;
    private javax.swing.JButton reset;
    // 变量声明结束//GEN-END:variables
    
}