面向对象程序设计编程 实验 上机

1、面向对象程序设计编程上机作业题目:(1调试构造函数Pen(例题using System;using System.Text;namespace ConsoleApplication2class Penpublic string Color;private int Price;public Pen( Color="BLACK"Price=5;public void SetPrice(int newPrice Price=newPrice;public int GetPrice( return Price; public void SetColor(string newColo

2、r Color=newColor; public string GetColor( return Color; class Test public static void Main( Pen myPen=new Pen( ;Console.WriteLine("The price is 0",myPen.GetPrice(;Console.WriteLine("The Color is 0",myPen.Color;(2调试构造函数重载Pen(例题using System;class Penpublic string Color;private int

3、Price;public Pen( Color = "BLACK" Price = 5;public Pen(string newColor, int newPrice Color = newColor;Price = newPrice;public void SetPrice(int newPrice Price = newPrice; public void SetPrice( Price = 5; public int GetPrice( return Price; public void SetColor(string newColor Color = newCol

4、or; public string GetColor( return Color; class Testpublic static void Main( Pen myPen = new Pen(;Pen hisPen = new Pen("GREEN", 8;Console.WriteLine("The price is 0", myPen.GetPrice(;Console.WriteLine("The Color is 0", myPen.Color;Console.WriteLine("The price is 0&q

5、uot;, hisPen.GetPrice(;Console.WriteLine("The Color is 0", hisPen.GetColor(; hisPen.SetPrice(;Console.WriteLine("The price is 0", hisPen.GetPrice(; (3使用重载方法求5和5.65的平方。using System;using System.Text;namespace ConsoleApplication8class Program public class apppublic int app1(int x r

6、eturn x * x; public double app1(double y return y * y; static void Main(string args app x = new app(;Console.WriteLine("5的平方是0", x.app1(5;Console.WriteLine("5.65的平方是0", x.app1(5.65;(4将运算符+和- -进行重载,使之可对字符型数据进行运算,即:对一个字符型变量a,当a=L时a+(或+a的值为M, a- -(或- -a的值为Kusing System;using System.

7、Text;namespace ConsoleApplication6public class charTestprivate char ch;public charTest( this.ch = ' ' public charTest(char val this.ch = val; public char c get return this.ch; set this.ch = value; static public charTest operator +(charTest orig charTest Result = new charTest(;Result.ch = (ch

8、ar(orig.ch + 1;return Result;static public charTest operator -(charTest orig charTest Result = new charTest(;Result.ch = (char(orig.ch - 1;return Result;public class overloadApppublic static void Main( charTest a = new charTest('L'charTest b = new charTest('L'Console.WriteLine("

9、Original value is :0,1", a.c, b.c;a = +a;b = -b;Console.WriteLine("Current value is :0.1", a.c, b.c;a = +a;b = -b;Console.WriteLine("Final value is:0,1", a.c, b.c;(5编写一个控制台程序,完成下列功能并输出结果:创建一个类Test1,用无参数的构造函数输出该类的类名;增加一个重载的构造函数,带有一个string类型的参数,在此构造函数中将传递的字符串打印出来;在Main方法中创建属于T

10、est1类的一个对象,不传递参数;在Main方法中创建属于Test1类的另一个对象,传递一个字符串“This is a string”; using System;using System.Text;namespace ConsoleApplication8class Programclass Test1public string test;public Test1( test = "Test1" public Test1(string s test = s; static void Main(string argsstring x = "This is a st

11、ring"Test1 app1 = new Test1(;Test1 app2 = new Test1(x;Console.WriteLine("0", app1.test;Console.WriteLine("0", app2.test;(6编写一个控制台程序,完成下列功能并输出结果:创建一个类A,在A中编写一个可以被重写的带int类型参数的方法MyMethod,并在该方法中输出传递的整型值加10后的结果;再创建一个类B,使其继承自类A,然后重写A中的MyMethod方法,将A中接收的整型值加50,并输出结果;在Main方法中分别创建类A和类

12、B的对象,并分别调用MyMethod方法;using System;class ClassA public static int MyMethod(int ii=i+10; return i;class ClassB:ClassApublic static int MyMethod(int ii=i+50;return i;class Testpublic static void Main(ClassA a=new ClassA(;ClassB b=new ClassB(;Console.WriteLine("请输入一个数:"string s=Console.ReadLin

13、e(;int x=Int32.Parse(s;Console.WriteLine("调用A类方法:0", ClassA.MyMethod(x;Console.WriteLine("调用B类方法:0", ClassB.MyMethod(x;(7利用委托实现:当用户输入一个字符1时,调用两个整数相加的方法,计算两整数之和;当用户输入一个字符2时,调用两个整数相减的方法,计算两整数之差。using System;class Appdelegate int process(int a,int b;public static int add(int a,int breturn a+b;public static int sub(int a,int breturn a-b;static void Main(string s,s1,s2;process Pro;Console.WriteLine("请输入一个数:"s1=Console.ReadLine(;int a=Int32.Parse(s1;Console.WriteLine("请输入另一个数:"