subjectinputpanel.java

学生信息管理实例 这里主要是运用Java和SQL Server2000来实现一个学生信息管理系统

package panel;

import java.awt.*;
import com.borland.jbcl.layout.*;
import javax.swing.*;

/**
 * <p>Title: 学生信息管理系统</p>
 * <p>Description: 对学生信息、学生成绩进行管理</p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: </p>
 * @author 苏年乐
 * @version 1.0
 */

/**
 * 此类提供一个可以选择学科的JPanel
 */
public class SubjectInputPanel extends JPanel {
  XYLayout xYLayout1 = new XYLayout();
  JLabel jLabel1 = new JLabel();
  JComboBox jComboBox1 = new JComboBox();

  public SubjectInputPanel() {
    try {
      jbInit();
    }
    catch(Exception ex) {
      ex.printStackTrace();
    }
  }

  void jbInit() throws Exception {
    jLabel1.setFont(new java.awt.Font("Dialog", 0, 12));
    jLabel1.setText("请选择课程");
    this.setLayout(xYLayout1);
    jComboBox1.setEnabled(true);
    jComboBox1.setFont(new java.awt.Font("Dialog", 0, 12));
    this.add(jComboBox1,       new XYConstraints(202, 50, 99, 24));
    this.add(jLabel1, new XYConstraints(8, 45, 147, 38));
    jComboBox1.addItem("语文");
    jComboBox1.addItem("数学");
    jComboBox1.addItem("英语");
  }
  /**
   *检查输入项是否为空
   */
  public boolean check(){
    if(((String)this.jComboBox1.getSelectedItem()).trim().equals(""))return false;
    return true;
  }
  /**
   * 返回所选学科的英文名称
   */
  public String getSubject(){
    String subject=((String)this.jComboBox1.getSelectedItem()).trim();
    if(subject.equals("语文"))return "chinese";
    else if(subject.equals("数学"))return "math";
    else return "english";
  }
  /**
   * 返回输入学科的中文名称
   */
  public String getSubjectChineseName(){
    return ((String)this.jComboBox1.getSelectedItem()).trim();
  }
}