queryclassjpanel.java

用Java做的一个学生考试分析程序

/*
 * QueryClassJPanel.java
 *
 * Created on 2007年12月14日, 下午3:21
 */

package 考试成绩分析程序;
import javax.swing.*;
/**
 *
 * @author  drawen
 */
public class QueryClassJPanel extends javax.swing.JPanel {
    
    /** Creates new form QueryClassJPanel */
    public QueryClassJPanel() {
        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();
        grade = new javax.swing.JTextField();
        major = new javax.swing.JTextField();
        classNumber = new javax.swing.JTextField();
        confirm = new javax.swing.JButton();
        jLabel6 = new javax.swing.JLabel();
        jScrollPane1 = new javax.swing.JScrollPane();
        text = new javax.swing.JEditorPane();

        jLabel1.setText("\u67e5\u8be2\u73ed\u7ea7\u4fe1\u606f");

        jLabel2.setText("\u5e74\u7ea7\uff1a");

        jLabel3.setText("\u4e13\u4e1a\uff1a");

        jLabel4.setText("\u73ed\u53f7\uff1a");

        grade.setText("2005");

        major.setText("\u8ba1\u7b97\u673a\u79d1\u5b66\u4e0e\u6280\u672f");

        classNumber.setText("3");

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

        jLabel6.setText("\u73ed\u7ea7\u5b66\u751f\u4fe1\u606f\uff1a");

        text.setEditable(false);
        jScrollPane1.setViewportView(text);

        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.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING, false)
                        .add(layout.createSequentialGroup()
                            .add(30, 30, 30)
                            .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING, false)
                                .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(33, 33, 33)
                            .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING, false)
                                .add(layout.createSequentialGroup()
                                    .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                                    .add(grade, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 119, Short.MAX_VALUE))
                                .add(major)
                                .add(classNumber))
                            .add(4, 4, 4))
                        .add(org.jdesktop.layout.GroupLayout.TRAILING, layout.createSequentialGroup()
                            .addContainerGap(org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .add(jLabel1)
                            .add(32, 32, 32)))
                    .add(layout.createSequentialGroup()
                        .add(86, 86, 86)
                        .add(confirm)))
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(layout.createSequentialGroup()
                        .add(89, 89, 89)
                        .add(jLabel6))
                    .add(layout.createSequentialGroup()
                        .add(40, 40, 40)
                        .add(jScrollPane1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 212, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)))
                .add(50, 50, 50))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(19, 19, 19)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel1)
                    .add(jLabel6, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 15, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(layout.createSequentialGroup()
                        .add(17, 17, 17)
                        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                            .add(jLabel2)
                            .add(grade, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                        .add(26, 26, 26)
                        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                            .add(jLabel3)
                            .add(major, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                        .add(31, 31, 31)
                        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                            .add(jLabel4)
                            .add(classNumber, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                        .add(39, 39, 39)
                        .add(confirm))
                    .add(layout.createSequentialGroup()
                        .add(11, 11, 11)
                        .add(jScrollPane1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 216, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap(39, Short.MAX_VALUE))
        );
    }// </editor-fold>//GEN-END:initComponents

    private void confirmButtonActionListener(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_confirmButtonActionListener
        int grade,classNumber;
        String major;
        Class newClass;
        try{
            grade=Integer.parseInt(this.grade.getText());
            classNumber=Integer.parseInt(this.classNumber.getText());
            major=this.major.getText();
            if((newClass=Class.queryFromFile(grade,major,classNumber))!=null){
                JOptionPane.showMessageDialog(null,"查询成功","查询结果",JOptionPane.WARNING_MESSAGE);
                String string="年级："+newClass.getGrade()+"\n专业："+newClass.getMajor()+"\n班号："+
                        newClass.getClassNumber()+"\n学生人数："+newClass.getStudentNumber()+"\n学生具体信息如下：\n学号\t姓名\n";
                Student []student=newClass.getStudents();
                for(int i=0;i<newClass.getStudentNumber();i++)
                    string+=(student[i].getId()+"\t"+student[i].getName()+"\n");
                this.text.setText(string);
            }
            else{
                JOptionPane.showMessageDialog(null,"系统中没有此班级的相关信息","查询结果",JOptionPane.WARNING_MESSAGE);
                this.text.setText("");
            }
        }catch(Exception e){
            JOptionPane.showMessageDialog(null,"输入的班级信息格式有误","出错",JOptionPane.ERROR_MESSAGE);
            this.text.setText("");
        }
    }//GEN-LAST:event_confirmButtonActionListener
    
    
    // 变量声明 - 不进行修改//GEN-BEGIN:variables
    private javax.swing.JTextField classNumber;
    private javax.swing.JButton confirm;
    private javax.swing.JTextField grade;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLabel jLabel6;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTextField major;
    private javax.swing.JEditorPane text;
    // 变量声明结束//GEN-END:variables
    
}