用java编写的学生成绩管理系统代码

//studentimport java。sql。＊;public class Student｛private String id;private String name;private int math；private int english；private int java;private int computer；public String getId(）{return id;｝public void setId（String id）{this.id = id；}public String getName(){return name；｝public void setName（String name)｛this。name = name;｝public int getMath（）{return math；｝public void setMath(int math){this。math = math；}public int getEnglish（）{return english；｝public void setEnglish（int english){this。english = english；}public int getJava(）｛return java；｝public void setJava（int java)｛this。java = java；｝public int getComputer（）{return computer；｝public void setComputer(int computer)｛this.computer = computer；｝public static void main（String［] args） throws Exception{String id;String cid；String name;int math;int english;int java；int computer；String DBDriver = "sun。jdbc.odbc。JdbcOdbcDriver";String conStr = "jdbc:odbc：student”；Connection con = null；Statement stmt = null;ResultSet rs = null；Class。forName（DBDriver)；con = DriverManager。getConnection（conStr， "student”， ”123”);stmt = con.createStatement（);String s = "\n\n\t\t\t 学 生 成 绩\n\n\t\t 1 新 增\n\t\t 2 更 改\n\t\t 3 删 除\n\t\t 4 查 找\n\t\t 5 显 示\n\t\t 0 退 出\n\n”;System。out。print(s）；int choice = Keyboard.getInteger（）；switch （choice）{// 添加学生case 1：System.out。print（”请输入学生信息\n"）;System。out。print（"学号：”）；id = Keyboard。getString(）;System.out.print（”姓名：”);name = Keyboard.getString();System.out。print（”数学:"）；math = Keyboard。getInteger();System.out。print(”英语:”);english = Keyboard.getInteger(）;System。out。print（"JAVA："）;java = Keyboard。getInteger（）；System。out.print（"计算机：”）;computer = Keyboard.getInteger（);stmt。executeUpdate（”insert into lxh1 values（'" +...