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C# 클래스 및 객체를 생성 방법 | 초보자를 위한 C# 자습서 C#에서 클래스(class)는 개체(object)를 만들기 위한 설계도 또는 템플릿이고 개체(object)는 클래스의 인스턴스입니다. C#의 클래스는 생성될 개체의 속성과 동작을 정의합니다. 영어로 Instance 는 사례, 경우란 뜻으로 나와 있듯이 인스턴스(instance)는 클래스나 구조체 같은 것들이 실제 메모리 생성된 실체를 가르킵니다. 클래스 멤버 (Class members) 클래스 멤버는 클래스 내에서 정의된 변수, 속성, 메서드, 이벤트 및 기타 요소들이 있습니다. 다음은 클래스 멤버의 몇 가지 예입니다. 1. 필드(Fields): 필드는 클래스 내에서 선언되고 데이터 값을 보유하는 변수입니다. 필드는 비공개(private) ..

C# How to Create Classes And Objects | C# Tutorial for Beginners In C#, a class is a blueprint or a template for creating objects. An object is an instance of a class. Classes in C# define the properties and behaviors of the objects that will be created from them. Class members Class members are the variables, properties, methods, events, and other elements defined within the class. Here are som..

C# List Find , FindIndex , FindAll , FindLast | C# 강좌 C#에서 List 클래스는 목록에서 지정된 조건과 일치하는 요소를 검색하는 데 사용할 수 있는 Find 메서드를 제공합니다. List.Find : Find 메서드의 형식은 다음과 같습니다. public T Find(Predicate match) 여기서 match 매개 변수는 검색할 조건을 나타내는 Predicate 대리자입니다. Predicate : public delegate bool Predicate(T obj); Predicate는 위의 형식에서 볼 수 있듯이 대리자(delegate, 메서드 내부에서 뭘 할지는 모르지만 위와 같은 형태를 가지고 있는 메서드를 대신 한다고 해서 대리자 )인데, 대리자 중에..

C# Iteration Loop - for, foreach, do, while | C# Tutorial for Beginners The iteration statements repeatedly execute a statement or a block of statements. There are several types of iteration loops you can use to iterate over a collection of elements. Here are some examples: 1. for loop : The for loop is the most commonly used loop in C#. It allows you to execute a block of code repeatedly based ..

C# Arrays You can store multiple variables of the same type in an array data structure. You declare an array by specifying the type of its elements. If you want the array to store elements of any type, you can specify object as its type. Each element in the array is identified by an index, which is an integer that starts at 0 for the first element and increases by 1 for each subsequent element. ..

C# Strings In C#, a string is a sequence of characters that represent text. Strings are reference types and are implemented as instances of the System.String class. Here are some basic operations you can perform with strings in C#: Creating a string: string s1 = "hello"; string s2 = "world"; string s3 = s1 + " " + s2; // s3 is "hello world" Getting the length of a string: string s = "hello"; int..

C# Nullables C# nullable types were introduced to allow variables to have a value or a null reference. In C#, by default, value types (such as int, double, and bool) cannot be assigned a null value. Nullable types allow you to assign a null value to a value type by wrapping the value type in a Nullable structure. To declare a nullable type, you can use the ? modifier after the value type. For ex..

C# Constants Constants are variables whose values cannot be changed once they are assigned. They are declared using the "const" keyword and can only be assigned a value at the time of declaration. Constants are typically used to define values that will remain fixed throughout the execution of a program, such as mathematical constants or values that are used frequently throughout the code. Here's..

C# Variables In C#, a variable is a named storage location that holds a value. Before you can use a variable in C#, you need to declare it with a data type. To declare a variable, you use the following syntax: data_type variable_name; Here's an example of declaring a variable: 1 2 int age; cs In this example, we're declaring a variable called age of type int. To assign a value to a variable, you..