delcourse.java~1~

来自「自己写的学生选课系统,多多关照.以后共同学习」· JAVA~1~ 代码 · 共 54 行

package student;

import java.awt.BorderLayout;

import javax.swing.JFrame;
import javax.swing.JComboBox;
import java.awt.Rectangle;
import javax.swing.JLabel;
import javax.swing.JButton;
import java.sql.ResultSet;

public class DelCourse extends JFrame {
    public DelCourse() {
        try {
            jbInit();
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }

    private void jbInit() throws Exception {
        getContentPane().setLayout(null);
        jComboBox1.setBounds(new Rectangle(194, 40, 129, 24));
        this.getContentPane().add(jLabel1);
        jButton1.setBounds(new Rectangle(119, 79, 117, 23));
        jButton1.setText("OK");
        this.getContentPane().add(jComboBox1);
        this.getContentPane().add(jButton1);
        jLabel1.setText("请选择你要删除的课程：");
        jLabel1.setBounds(new Rectangle(60, 41, 133, 23));


        String sql = "select Cname from course"; //查询course表里面所包含的课程

        ResultSet rs = DBManager.getResult(sql); //返回结果集
        jComboBox1.addItem("");
        try {
            while (rs.next()) {
                String str = new String();
                str = rs.getString("Cname"); //取结果集中的元素
                jComboBox1.addItem(str); //添加到jComboBoxSearch
            }

        } catch (Exception ex) {

        }

    }

    JComboBox jComboBox1 = new JComboBox();
    JLabel jLabel1 = new JLabel();
    JButton jButton1 = new JButton();
}