用java编写的学生成绩管理系统代码

//student import 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.getInt...