2编写一个程序，定义一个表示学生的类Student和一个TestStudent类。Student类包括学号、姓名、性别、年龄和三门课程成绩的信息数据，以及用来获得和设置学号、姓名、性别、年龄和三门成绩的方法。在TestStudnet类中生成五个学生对象，计算三门课程的平均成绩，以及某门课程的最高分和最低分。

好的，下面是符合题目要求的源代码：

// 定义学生类
class Student {
    private String id;
    private String name;
    private String gender;
    private int age;
    private int score1;
    private int score2;
    private int score3;

    // 设置学号的方法
    public void setId(String id) {
        this.id = id;
    }

    // 设置姓名的方法
    public void setName(String name) {
        this.name = name;
    }

    // 设置性别的方法
    public void setGender(String gender) {
        this.gender = gender;
    }

    // 设置年龄的方法
    public void setAge(int age) {
        this.age = age;
    }

    // 设置三门课程成绩的方法
    public void setScores(int score1, int score2, int score3) {
        this.score1 = score1;
        this.score2 = score2;
        this.score3 = score3;
    }

    // 获取学号的方法
    public String getId() {
        return id;
    }

    // 获取姓名的方法
    public String getName() {
        return name;
    }

    // 获取性别的方法
    public String getGender() {
        return gender;
    }

    // 获取年龄的方法
    public int getAge() {
        return age;
    }

    // 获取三门课程成绩的方法
    public int getScore1() {
        return score1;
    }

    public int getScore2() {
        return score2;
    }

    public int getScore3() {
        return score3;
    }
}

// 定义TestStudent类，用于测试学生类
public class TestStudent {
    public static void main(String[] args) {
        // 生成五个学生对象
        Student stu1 = new Student();
        stu1.setId("001");
        stu1.setName("Tom");
        stu1.setGender("Male");
        stu1.setAge(20);
        stu1.setScores(80, 90, 70);

        Student stu2 = new Student();
        stu2.setId("002");
        stu2.setName("Jane");
        stu2.setGender("Female");
        stu2.setAge(19);
        stu2.setScores(70, 80, 90);

        Student stu3 = new Student();
        stu3.setId("003");
        stu3.setName("Jack");
        stu3.setGender("Male");
        stu3.setAge(22);
        stu3.setScores(90, 80, 85);

        Student stu4 = new Student();
        stu4.setId("004");
        stu4.setName("Lily");
        stu4.setGender("Female");
        stu4.setAge(21);
        stu4.setScores(85, 90, 80);

        Student stu5 = new Student();
        stu5.setId("005");
        stu5.setName("Tim");
        stu5.setGender("Male");
        stu5.setAge(20);
        stu5.setScores(80, 85, 75);

        // 计算三门课程的平均成绩
        double avg1 = (stu1.getScore1() + stu2.getScore1() + stu3.getScore1() + stu4.getScore1() + stu5.getScore1()) / 5.0;
        double avg2 = (stu1.getScore2() + stu2.getScore2() + stu3.getScore2() + stu4.getScore2() + stu5.getScore2()) / 5.0;
        double avg3 = (stu1.getScore3() + stu2.getScore3() + stu3.getScore3() + stu4.getScore3() + stu5.getScore3()) / 5.0;
        System.out.println("Average score of course 1: " + avg1);
        System.out.println("Average score of course 2: " + avg2);
        System.out.println("Average score of course 3: " + avg3);

        // 计算某门课程的最高分和最低分
        int max1 = Math.max(stu1.getScore1(), Math.max(stu2.getScore1(), Math.max(stu3.getScore1(), Math.max(stu4.getScore1(), stu5.getScore1()))));
        int min1 = Math.min(stu1.getScore1(), Math.min(stu2.getScore1(), Math.min(stu3.getScore1(), Math.min(stu4.getScore1(), stu5.getScore1()))));
        System.out.println("Max score of course 1: " + max1);
        System.out.println("Min score of course 1: " + min1);

        int max2 = Math.max(stu1.getScore2(), Math.max(stu2.getScore2(), Math.max(stu3.getScore2(), Math.max(stu4.getScore2(), stu5.getScore2()))));
        int min2 = Math.min(stu1.getScore2(), Math.min(stu2.getScore2(), Math.min(stu3.getScore2(), Math.min(stu4.getScore2(), stu5.getScore2()))));
        System.out.println("Max score of course 2: " + max2);
        System.out.println("Min score of course 2: " + min2);

        int max3 = Math.max(stu1.getScore3(), Math.max(stu2.getScore3(), Math.max(stu3.getScore3(), Math.max(stu4.getScore3(), stu5.getScore3()))));
        int min3 = Math.min(stu1.getScore3(), Math.min(stu2.getScore3(), Math.min(stu3.getScore3(), Math.min(stu4.getScore3(), stu5.getScore3()))));
        System.out.println("Max score of course 3: " + max3);
        System.out.println("Min score of course 3: " + min3);
    }
}

你可以将这段代码保存为TestStudent.java文件，并同样使用`javac`编译器进行编译，然后使用`java`命令运行TestStudent类即可。