Description 有学生和教师两类人员。学生信息有身份证号、学号、专业、姓名、性别、年龄及数学、英语、Java程序设计三门课程的成绩；教师信息有身份证号、教师号、专业、姓名、性别、年龄、职称及授课的时数。 定义学生类和教师类、创建类的对象并输出对象的信息。 要求：必须基于面向对象的三个特征编写程序！否则，本题的成绩为0分！ Input 有多组数据。 每组数据的第1个数据是类型：1——学生，2——教师，其后是相应对象的各个信息，如Sample Input所示。 Output 输出学生或教师的信息。 Sample Input 1 1234567890 04010101 Yaoming m 20 Computer 90 85 80 2 9123456789 0401001 Zhang f 42 Computer middle-rank 90 Sample Output Student:1234567890 04010101 Yaoming m 20 Computer 90 85 80 Teacher:9123456789 0401001 Zhang f 42 Computer middle-rank 90 Hint 1.必须定义类和类的对象，并通过对象完成计算，不得在main方法中完成计算；

以下是基于面向对象三个特征的 Java 代码实现：

import java.util.Scanner;

class Person {
    private String idCard; // 身份证号
    private String name; // 姓名
    private String gender; // 性别
    private int age; // 年龄
    private String major; // 专业

    // 构造函数
    Person(String idCard, String name, String gender, int age, String major) {
        this.idCard = idCard;
        this.name = name;
        this.gender = gender;
        this.age = age;
        this.major = major;
    }

    // 输出个人信息
    void printInfo() {
        System.out.println(idCard + " " + name + " " + gender + " " + age + " " + major);
    }
}

class Student extends Person {
    private String studentId; // 学号
    private int mathScore; // 数学成绩
    private int englishScore; // 英语成绩
    private int javaScore; // Java程序设计成绩

    // 构造函数
    Student(String idCard, String studentId, String name, String gender, int age, String major, int mathScore, int englishScore, int javaScore) {
        super(idCard, name, gender, age, major);
        this.studentId = studentId;
        this.mathScore = mathScore;
        this.englishScore = englishScore;
        this.javaScore = javaScore;
    }

    // 输出学生信息
    void printInfo() {
        System.out.print("Student:");
        super.printInfo();
        System.out.println(studentId + " " + mathScore + " " + englishScore + " " + javaScore);
    }
}

class Teacher extends Person {
    private String teacherId; // 教师号
    private String title; // 职称
    private int teachingHours; // 授课的时数

    // 构造函数
    Teacher(String idCard, String teacherId, String name, String gender, int age, String major, String title, int teachingHours) {
        super(idCard, name, gender, age, major);
        this.teacherId = teacherId;
        this.title = title;
        this.teachingHours = teachingHours;
    }

    // 输出教师信息
    void printInfo() {
        System.out.print("Teacher:");
        super.printInfo();
        System.out.println(teacherId + " " + title + " " + teachingHours);
    }
}

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNext()) {
            int type = scanner.nextInt();
            if (type == 1) {
                String idCard = scanner.next();
                String studentId = scanner.next();
                String name = scanner.next();
                String gender = scanner.next();
                int age = scanner.nextInt();
                String major = scanner.next();
                int mathScore = scanner.nextInt();
                int englishScore = scanner.nextInt();
                int javaScore = scanner.nextInt();
                Student student = new Student(idCard, studentId, name, gender, age, major, mathScore, englishScore, javaScore);
                student.printInfo();
            } else if (type == 2) {
                String idCard = scanner.next();
                String teacherId = scanner.next();
                String name = scanner.next();
                String gender = scanner.next();
                int age = scanner.nextInt();
                String major = scanner.next();
                String title = scanner.next();
                int teachingHours = scanner.nextInt();
                Teacher teacher = new Teacher(idCard, teacherId, name, gender, age, major, title, teachingHours);
                teacher.printInfo();
            }
        }
        scanner.close();
    }
}

代码中定义了一个 Person 类作为学生和教师类的基类，这样可以减少代码的冗余。学生类和教师类都继承自 Person 类，并在此基础上添加了各自的属性和方法。在主函数中，根据输入的类型创建相应的学生类或教师类的对象，并输出对象信息。注意，输出格式要与题目要求一致。