c# 프로그램 연습

Sumbit.zip

-as , is 연산자

1 private int checktype(Man mi) 2 { 3 if (mi is Stu && !(mi is StuTea)) return 1; 4 if (mi is StuTea) return 2; 5 if (mi is Tea && !(mi is TeaStu)) return 3; 6 if (mi is TeaStu) return 4; 7 8 return -1; 9 }

1 foreach (Stu st in lb) 2 { 3 int num; 4 if ((num = lb.Compare(st, name)) == 1) 5 { 6 Stu stu = st; 7 return stu as Man; 8 } 9 }

-명시적, 묵시적 인터페이스 구현

//명시적 인터페이스! void ITeach.Work() { Console.WriteLine("학생 선생입니다~ 공부하고 일하고 바빠~ 바쁨 IQ-2"); int Iq = this.IQS; this.SettingIq(ref Iq, -2); } //묵시적 인터페이스! public void Teach() { Console.WriteLine("학생 선생입니다~ 가르칩니다~ IQ+2"); }

-static 클래스 구현

public static class ShowWindow { // 읽기전용 static 읽기전용 static readonly ArrayList arr; static ShowWindow() { arr = new ArrayList(); SetShowwindow(); } private static void SetShowwindow() { arr.Add(new Stu("조대준",42)); arr.Add(new Stu("대마왕", 142)); arr.Add(new StuTea("조스타", 124)); arr.Add(new StuTea("킹스타", 102)); arr.Add(new Tea("최강사", 50)); arr.Add( new Tea("진짜강사", 84)); arr.Add( new TeaStu("진중왕",45)); arr.Add(new TeaStu("왕중진", 55)); } public static string StaticToString() { bool type = false; foreach (object o in arr) { if (o is Stu && !(o is StuTea)) { if (!type) { Console.WriteLine("========= 학생 ========="); } Console.WriteLine(o.ToString()); type = true; } if (o is StuTea) { if (type) { Console.WriteLine("=========학생 선생 ========="); } Console.WriteLine(o.ToString()); type = false; } if (o is Tea && !(o is TeaStu)) { if (!type) { Console.WriteLine("========= 선생 ========="); } Console.WriteLine(o.ToString()); type = true; } if (o is TeaStu) { if (type) { Console.WriteLine("========= 선생 학생========="); } Console.WriteLine(o.ToString()); type = false; } } return null; } public static Man CompareName(string _name) { foreach (Man o in arr) { if (o.Name == _name) { if (o is Stu && !(o is StuTea)) { Stu stu = o as Stu; return stu.Clone() as Man; } if (o is StuTea) { StuTea stutea = o as StuTea; return (StuTea)stutea.Clone() as Man; } if (o is Tea && !(o is TeaStu)) { Tea tea = o as Tea; return tea.Clone() as Man; } if(o is TeaStu) { TeaStu tea = o as TeaStu; return (TeaStu)tea.Clone() as Man; } return null; } } return null; } }

-static 생성자 구현

//static 생성자!! static LecturRoom() { singleton = new LecturRoom(); } private LecturRoom() { Console.WriteLine("강의실 생성"); Console.ReadLine(); }

-abstract 클래스 구현

//abstract 클래스!!! public abstract class Man: IComparable { string name; readonly int hp; const int min_Hp = 0; const int max_Hp = 100; public Man(string _name) { name = _name; hp = max_Hp; } //비대칭 속성!! public string Name { get { return name; } private set { if (Avail(value)) { name = value; } } } private bool Avail(string value) { return (value != null); } public int CompareTo(object obj) { Man man = obj as Man; if(man !=null) { return this.Name.CompareTo(man.Name); } else { throw new Exception("안되요..."); } } public override string ToString() { return "체력 : " + hp+"\n"; } } class StuHelper :IComparer<Man> { #region IComparer(Man) 멤버 public int Compare(Man x, Man y) { return x.Name.CompareTo(y.Name); } #endregion }

-sealed 클래스 구현

// sealed 클래스!! public sealed class TeaStu : Tea ,IStudy,ICloneable { public TeaStu(string _name, int _charisma) : base(_name, _charisma) { } public TeaStu(string _name) : base(_name) { } public override string ToString() { return base.ToString(); } public void Study() { Console.WriteLine(" 강사지만 열심히 공부한다~~~"); } public override void Heal() { Console.WriteLine("선생이 배우고 가르치고 힘들다 쉬어야지~~"); } #region ICloneable 멤버 public object Clone() { Console.WriteLine("이름을 입력하세요~"); string _name = Console.ReadLine(); return new TeaStu(_name, this.Charisma); } #endregion }

-ToString 재정의 구현

//ToString 재정의! public override string ToString() { return "이름 : " + this.Name + " 카리스마 : " + charisma + "\n" + base.ToString(); }

-읽기전용, static 읽기전용 구현

public static class ShowWindow { // 읽기전용 static 읽기전용 static readonly ArrayList arr; static ShowWindow() { arr = new ArrayList(); SetShowwindow(); } }

-const 멤버 구현 (Man 속성)

const int min_Hp = 0; const int max_Hp = 100;

-비대칭 속성 구현 (Man 속성)

//비대칭 속성!! public string Name { get { return name; } private set { if (Avail(value)) { name = value; } } }

-base 키워드 구현

-IComparer,IComparable 구현 (Stu 클래스 내 구현, Helper클래스 사용)

public int CompareTo(object obj) { Man man = obj as Man; if(man !=null) { return this.Name.CompareTo(man.Name); } else { throw new Exception("안되요..."); } } } class StuHelper :IComparer<Man> { #region IComparer(Man) 멤버 public int Compare(Man x, Man y) { return x.Name.CompareTo(y.Name); } #endregion }

-IEnumerable,IEnumerator 구현(LectureRoom)

#region IEnumerator 멤버 object IEnumerator.Current { get { if (iteach != null) { return iteach; } return istudies[index]; } } bool IEnumerator.MoveNext() { index++; if (index < istudies.Count) { return true; } Reset(); return false; } public void Reset() { index = -1; } #endregion #region IEnumerable 멤버 public IEnumerator GetEnumerator() { return (IEnumerator)this; } #endregion

-ICloneable 구현

#region ICloneable 멤버 public object Clone() { Console.WriteLine("이름을 입력하세요~"); string _name = Console.ReadLine(); return new TeaStu(_name, this.Charisma); } #endregion

-인덱서 구현

//인덱서 public Tea this[string index] { get { foreach (Tea t in stulist) { if (t.Name == index) { return t; } } return null; } }

-out,ref 구현

public double CheckAverage(ref double number) { int i=0; double sum = 0; foreach (Stu st in libarr) { sum += number - st.IQS; } double gap = sum / libarr.Count; number = number - gap; return number; }