c# oop tutorial

stringconversion { static void Main (string[] args) { int i =; float f = 53.005f; Double d = 2345.7652; BOOL B = true; Console.WriteLine (i.ToString ()); Console.WriteLine (F.tostring ()); Console.WriteLine (D.tostring ()); Console.WriteLine (B.tostring ()); Console.readkey ();}}} When the above code is compiled and executed, it produces the following results: 7553.0052345.765

// -- C ++ shortcut tutorial -- Chapter 18--c ++ I/O system// -- Chapter 18--c ++ I/O system// -- 10/15/2006 sun.// -- Computer lab// -- Liwei // Describes the use of the insert operator to enable the user# Include Using namespace STD; Class three_d {Int x, y, z;Public:Three_d (int A, int B, int

July 7, 2017 23:15:51Outside the rain, suddenly want to learn C language, so brush the foundation.Notes:C Language Tutorials1.C language is a universal, process-oriented computer programming language. In 1972, in order to transplant and develop the UNIX operating system, Dennis Ritchie designed and developed the C language in Bell Telephone lab.C is a widely used

This tutorial will explain how to call C + + functions in Lua. In Lua, it is simpler to call C + + functions, and this article will demonstrate a concrete approach with two examples: one for averages and the other for printing parameter information for LUA functions. Finally, this article describes how to define these two functions as a module so that the globa

system.text.regularexpressions;namespace regexapplication{ class program { static void Main (string[] args) { string input = "Hello world "; String pattern = "\\s+"; String replacement = ""; Regex rgx = new regex (pattern); string result = Rgx. Replace (input, replacement); Console.WriteLine ("Original String: {0}", input); Console.WriteLine ("Replacement String: {0}", result); Console.readkey ();}}} When t

data: 5 5 Program output: Ten TenThe third task: Judging whether the four-tertiary math passFour uncle because the final math exam did not pass, so hard, decided to blow brush deep math test paper. He knows his score. He wants you to help him write a program to judge whether he has passed or not.We only need a judgment statement:if (condition) { If the condition is met, the content is executed. }Else{ Content that does not meet the conditions that are executed.}Code:#include usingname

used when you need to make FIFO access to each item. When you add an item to the list, called the queue, when you remove an item from the list, it is called the queue. Dot Matrix (BitArray) it represents a binary array that uses the value 1 and the. Bitmap columns are used when you need to store bits, but do not know the number of bits beforehand. You can use an integer index to access items from a lattice column collection, starting with the zero-based index. This is the "

7. A third C procedureFirst of all, please look at the following small program, try to compile their own run. If you do not know how to compile, please click the following hyperlink: Compiler use Methodcompiler dev-c++ Download Use tutorial / * circle.c-Calculate the area of the circle * * #include stdio.h> int main (void){float radius; / * radius of Circle *

Simple implementation tutorial of one-way linked list in C language and C LanguageSimple implementation of a C-language one-way linked list # Include # Include // Define a struct representing the linked list node struct node {int data; // the data stored in the node struct node * next; // pointer to the nex

exceptions @try: Defines the block of code used to test to determine whether to throw an exception @catch: Defines the block of code used to handle thrown exceptions @finally: code block executes whether or not an exception is thrown @throw: Throwing Exceptions 9.32 catching different types of exceptions Multiple @catch code blocks, processing code should be sorted in order from specific to abstract 9.33 Throwing Exceptions When the program detec

{public void func () { Console.WriteLine ("Inside Second_ Space "); }}} Class testclass{ static void Main (string[] args) { ABC FC = new ABC (); EFG sc = new EFG (); Fc.func (); Sc.func (); Console.readkey (); }} When the above code is compiled and executed, it produces the following results: Inside First_spaceinside Second_space Nested namespaces Namespaces can be nested, meaning that you can define another namespace within one namespace, as

public override string name {get {return Name } set {name = value; }}//declares an age property of type int public override int Age {get {return age; } set {age = value; }} public override string ToString () {return "code =" + code + ", name =" + name +", age =" + age; }} class Exampledemo {public static void Main () {//Create a new Student object Student s = new S Tudent (); Set the code, name, and age S.code = "001" for student;

- (void//必须实现@optional- (void)slideHome;- (void)catchBall;- (void)throwBall;@required- (void//必须实现@end // BaseballPlayerNote :The informal agreement in cocoa was gradually replaced by a formal agreement with the @optional approach.13.4 Delegate MethodsDelegate: An object specifies the design pattern for another object to handle certain tasks, and the delegate adheres to the ProtocolThe delegate method for the Nsnetservicebrowser class:-(iddelegate;//返回当前的委托对象-(void)setDelegate:(iddelegate;//设置委

// -- C ++ shortcut tutorial -- Chapter 18--c ++ I/O system// -- Chapter 18--c ++ I/O system// -- 10/16/2006 mon.// -- Chang'an university dormitory // -- Xwlee // Read () and write () -- 16# Include # Include Using namespace STD; Int main (INT argc, char * argv []){Int N [5] = {1, 2, 3, 4, 5 };Register int I; Of

Previous ArticleArticleRecords the knowledge of flow control statements in C #. This section describes the pre-processor commands in C, C # Preprocessor commands allow the compiler to do a lot of things that the C # basic syntax cannot do. I have only read this before and have never actually used it. This is just the c

be a name, while the exposed property is another name.@property(copy)NSString *name;@synthesize name = appellation;// 编译器将创建-setName:和-name方法，但在实现代码中用的是appellation实例变量。Note :Direct access to instance variables: self.nameTo assign a value using an access method:[self setName:@"Car"];11.22 Read-only propertiesFor values that can only be read, cannot be changed:@property(readonly)float shoeSize;Note : Only one getter method is generated and no setter method is generated11.23 Hands on your own@dyna

delegate object @interface nsobject ( Span class= "hljs-variable" >nsnetservicebrowserdelegatemethods ) - (void) Netservicebrowserwillsearch: (nsnetservicebrowser *) browser;- Netservicebrowserdidstopsearch: (NSNetServiceBrowser *) browser;- (void) Netservicebrowser: ( Span class= "hljs-variable" >nsnetservicebrowser *) browser Didremoveservice: (nsnetservice *) service morecoming: (bool ) morecoming; @end By declaring the category as NSObject, Nsnetservicebrowser can send o

Visual C + + (VC/MFC) learning ebook and development tools download see here an unprecedented network of the strongest and strongest C + + data indexes: E-C + + programming language learning Materials Panorama ebook + video Tutorial VC++/MFC (VC6) Development Technology Quality Learning material

}", num1, num2, num3, num4); Console.WriteLine ("A nullable Boolean value: {0}", boolval); Console.ReadLine ();}}} When the above code is compiled and executed, it produces the following results: Displays the value of a nullable type:, 3.14157, a nullable Boolean value: The Null merge operator (?? ） The null merge operator is used to define the default values for nullable types and reference types. The null merge operator defines a preset value for

implementation of the above interface: Using system.collections.generic;using system.linq;using system.text;namespace interfaceapplication{Public Interface Itransactions {//interface member void Showtransaction (); Double Getamount (); } public class Transaction:itransactions {private string tcode; private string date; private double amount; Public Transaction () {tcode = ""; Date = ""; Amount = 0.0; } public Transaction (string