Java学生出勤管理系统

学生出勤管理系统主要包含以下几个模块：

1. 学生信息管理：包括学生基本信息、出勤情况、请假情况等。

2. 课程信息管理：包括课程名称、授课教师、上课时间、上课地点等。

3. 出勤情况管理：包括考勤情况、迟到情况、早退情况等。

4. 请假情况管理：包括请假类型、请假原因、请假时间等。

5. 报表统计：对学生出勤情况、请假情况进行统计分析，输出报表。

下面是一个简单的Java学生出勤管理系统的代码示例：

import java.util.*;

class Student {
    private String name;
    private String id;

    public Student(String name, String id) {
        this.name = name;
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public String getId() {
        return id;
    }
}

class Attendance {
    private Student student;
    private boolean isPresent;
    private int minutesLate;
    private int minutesEarly;

    public Attendance(Student student, boolean isPresent, int minutesLate, int minutesEarly) {
        this.student = student;
        this.isPresent = isPresent;
        this.minutesLate = minutesLate;
        this.minutesEarly = minutesEarly;
    }

    public Student getStudent() {
        return student;
    }

    public boolean isPresent() {
        return isPresent;
    }

    public int getMinutesLate() {
        return minutesLate;
    }

    public int getMinutesEarly() {
        return minutesEarly;
    }
}

class Course {
    private String name;
    private String teacher;
    private String time;
    private String location;
    private List<Attendance> attendanceList;

    public Course(String name, String teacher, String time, String location) {
        this.name = name;
        this.teacher = teacher;
        this.time = time;
        this.location = location;
        this.attendanceList = new ArrayList<>();
    }

    public void addAttendance(Attendance attendance) {
        attendanceList.add(attendance);
    }

    public int numPresent() {
        int count = 0;
        for (Attendance attendance : attendanceList) {
            if (attendance.isPresent()) {
                count++;
            }
        }
        return count;
    }

    public int numLate() {
        int count = 0;
        for (Attendance attendance : attendanceList) {
            if (!attendance.isPresent() && attendance.getMinutesLate() > 0) {
                count++;
            }
        }
        return count;
    }

    public int numEarly() {
        int count = 0;
        for (Attendance attendance : attendanceList) {
            if (!attendance.isPresent() && attendance.getMinutesEarly() > 0) {
                count++;
            }
        }
        return count;
    }

    public int numAbsent() {
        return attendanceList.size() - numPresent();
    }

    public String getName() {
        return name;
    }

    public String getTeacher() {
        return teacher;
    }

    public String getTime() {
        return time;
    }

    public String getLocation() {
        return location;
    }
}

class AttendanceSystem {
    private List<Student> studentList;
    private List<Course> courseList;

    public AttendanceSystem() {
        this.studentList = new ArrayList<>();
        this.courseList = new ArrayList<>();
    }

    public void addStudent(Student student) {
        studentList.add(student);
    }

    public void addCourse(Course course) {
        courseList.add(course);
    }

    public List<Student> getStudentList() {
        return studentList;
    }

    public List<Course> getCourseList() {
        return courseList;
    }

    public static void main(String[] args) {
        // 创建学生
        Student student1 = new Student("张三", "001");
        Student student2 = new Student("李四", "002");
        Student student3 = new Student("王五", "003");

        // 创建课程
        Course course1 = new Course("Java程序设计", "张三老师", "周一 9:00-10:30", "教1-101");
        Course course2 = new Course("计算机网络", "李四老师", "周二 13:30-15:00", "教1-102");

        // 添加学生和课程
        AttendanceSystem attendanceSystem = new AttendanceSystem();
        attendanceSystem.addStudent(student1);
        attendanceSystem.addStudent(student2);
        attendanceSystem.addStudent(student3);
        attendanceSystem.addCourse(course1);
        attendanceSystem.addCourse(course2);

        // 添加出勤记录
        course1.addAttendance(new Attendance(student1, true, 0, 0));
        course1.addAttendance(new Attendance(student2, false, 5, 0));
        course1.addAttendance(new Attendance(student3, true, 0, 10));
        course2.addAttendance(new Attendance(student1, false, 15, 0));
        course2.addAttendance(new Attendance(student2, true, 0, 0));
        course2.addAttendance(new Attendance(student3, true, 0, 0));

        // 输出报表
        for (Course course : attendanceSystem.getCourseList()) {
            System.out.println(course.getName() + " 课程报表：");
            System.out.println("应到人数：" + course.getAttendanceList().size());
            System.out.println("实到人数：" + course.numPresent());
            System.out.println("迟到人数：" + course.numLate());
            System.out.println("早退人数：" + course.numEarly());
            System.out.println("缺勤人数：" + course.numAbsent());
            System.out.println();
        }
    }
}

这个简单的Java程序实现了一个学生出勤管理系统，可以管理学生信息和课程信息，并且能够统计出勤情况并输出报表。你可以按照自己的需求进行修改和完善。