java學生選課系統(tǒng)(編輯修改稿)
2025-08-20 00:32 本頁面
【文章內(nèi)容簡介】 sql = select o,ame,hour,grade,term,isNeed from CourseXX where grade = ?。ps = (sql)。(1, (userInput))。} else if (學期.equals(selectedItem)) {sql = select o,ame,hour,grade,term,isNeed from CourseXX where term = ?。ps = (sql)。(1, userInput)。}(sql)。rs = ()。()。ResultSetMetaData meta = ()。int cols = ()。String result = null。int k = 1。boolean flag = false。while (()) {for (int i = 1。 i = cols。 i++) {result = (i)。(result)。(result, k 1, i 1)。}k++。flag = true。}if (flag == false) {(null, 該課程不存在，請重新輸入)。return。}} catch (Exception ex) {()。try {()。} catch (Exception er) {()。}}public void createSearchCourse() {(new GridLayout(3, 1))。JPanel jp1 = new JPanel()。(new GridLayout(4, 1))。JPanel jp2 = new JPanel()。JPanel jp3 = new JPanel()。JPanel jp10 = new JPanel()。JPanel jp11 = new JPanel()。JPanel jp12 = new JPanel()。JPanel jp13 = new JPanel()。JLabel jlSearch = new JLabel( 學 生 選 課 系 統(tǒng) )。(jlSearch)。(new String(課程名))。(new String(課程ID))。(new String(學時))。(new String(學分))。(new String(學期))。(jtfSearch)。(jcbSearch)。JButton jbOK = new JButton(查詢)。(this)。(90, 20)。(jbOK)。(jp10)。(jp11)。(jp12)。(jp13)。(jspSearch)。JLabel jlSelectedCourse = new JLabel(請輸入課程ID：)。JButton jbSelectedCourse = new JButton(提交)。(this)。(jlSelectedCourse)。(jtfSelectedCourse)。(jbSelectedCourse)。(jp1)。(jp2)。(jp3)。(true)。(485, 600)。}public static void main(String[] args) {//String usrName = xuliang。//String passwrd = 123。new StudentChooseCourse(usrName, passwrd)。}}drop table registerXu。create table registerXu (id varchar(20),userName varchar(20),passWord varchar(20),identify varchar(20))。insert into registerXu values(39。s00139。,39。xuliang39。,39。12339。,39。學生39。)。insert into registerXu values(39。s00239。,39。xuliang239。,39。123439。,39。學生39。)。insert into registerXu values(39。j00139。,39。jack39。,39。1234539。,39。學生39。)。insert into registerXu values(39。00139。,39。user39。,39。user39。,39。學生39。)。insert into registerXu values(39。z00139。,39。zlm39。,39。corejava39。,39。老師39。)。String sql = select * from registerXu + where userName=? and passWord=? and identify=?。//table 2:Coursexx課程表drop table Coursexx。create table Coursexx(o varchar(20) primary key,ame varchar(20),hour Int,grade Int,term varchar(20),is
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