Class Diagram

StuClass

private StuClassName : String

getStuClassName() : String()setStuClassName():void

Course

private CourseName : Stringprivate CourseNo : intprivate CourseTime : String

getCourseName():String()setCourceName():voidgetCourseNo():int()setCourceNo():voidgetCourseTime():String()setCourceTime():void

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Student

private StuName : Stringprivate StuNo : intprivate isCome : booleanprivate ComeTime:String

getStuName() : String()setStuName() : voidgetStuNo() : int()setStuNo() : voidgetIsCome():boolean();setIsCome():boolean();getComeTime():boolean();setIsComeTime():boolean();

Teacher

private TeacherName : Stringprivate TeacherNo : int

getTeacherName():String()setTeacherName():voidgetTeacherNo() : int()setTeacherNo() : void

SignTable

(new Teacher).getTeacherNo():int()(new Teacher).getTeacherName():String()(new Student).getStuNo():String()(new Student).getStuName():String()(new Course).getCourceName():String()(new Course).getCourceTime():String()(new Course).getCourceNo():int()(new StuClass).getStuClassName():String()(new Student).getIsCome():boolean()

TwoDimCode

(new Teacher).getTeacherNo():int()(new Teacher).getTeacherName():String()(new Student).getStuNo():String()(new Student).getStuName():String()(new Course).getCourceName():String()(new Course).getCourceTime():String()(new Course).getCourceNo():int()(new StuClass).getStuClassName():String()getTwoDimCode():void