what are concrete methods in c#?
476335
Concrete methods in interfaces The simplest form of this feature is the ability to declare a concrete method in an interface, which is a method with a body. A class that implements this interface need not implement its concrete method.
658994
Starting with C# 7.0, the is and switch statements support pattern matching. The is keyword supports the following patterns: Type pattern, which tests whether an expression can be converted to a specified type and, if it can be, casts it to a variable of that type.
1033495
['local variable.', 'global variable.', 'static variable.', 'automatic variable.', 'external variable.']
570689
Use the IComparable Interface in C# to sort elements. It is also used to compare the current instance with another object of same type. It provides you with a method of comparing two objects of a particular type. Remember, while implementing the IComparable interface, CompareTo() method should also be implemented.
1301208
The C# programming language provides support for both virtual and abstract methods, each of which has distinct advantages. You use virtual methods to implement late binding, whereas abstract methods enable you to force the subclasses of the type to have the method explicitly overridden.
727787
C# 3.0 introduced var keyword to declare method level variables without specifying a data type explicitly. ... Implicitly-typed variables must be initialized at the time of declaration; otherwise C# compiler would give an error: Implicitly-typed variables must be initialized.
982080
Basically, if you pass a reference by value, then you can change the object it refers to and these changes will persist outside the method, but you can't make variable refer to a different object and have that change persist outside the method. Parameters in C# are passed "ByVal" by default.
1242966
Implicitly-typed variables must be initialized at the time of declaration; otherwise C# compiler would give an error: Implicitly-typed variables must be initialized.
630261
The parameter of the Main method is a String array that represents the command-line arguments. Usually you determine whether arguments exist by testing the Length property, for example: C# Copy. if (args.Length == 0) { System.Console.WriteLine("Please enter a numeric argument."); return 1; }
554200
The IEquatable is a new generic interface in . NET 2.0 that allows you to do the same as the System. Object. Equals method but without having to perform casts.
1463772
['using System. Data;', 'using System. Data. SqlClient;', 'using System.IO;']
341507
A method in C# is made an asynchronous method using the async keyword in the method signature. You can have one or more await keywords inside an async method. The await keyword is used to denote the suspension point. An async method in C# can have any one of these return types: Task, Task<T> and void.
584665
['Creational Design Pattern. Factory Pattern. Abstract Factory Pattern. Singleton Pattern. Prototype Pattern. ... ', 'Structural Design Pattern. Adapter Pattern. Bridge Pattern. Composite Pattern. ... ', 'Behavioral Design Pattern.']
1265168
TextBox() is loosely typed method whereas @Html. TextBoxFor() is a strongly typed (generic) method. TextBox() requires property name as string parameter where as TextBoxFor() requires lambda expression as a parameter. TextBox doesn't give you compile time error if you have specified wrong property name.
623718
['Standard library functions.', 'User-defined functions.']
886525
['public static − modifier.', 'int − return type.', 'methodName − name of the method.', 'a, b − formal parameters.', 'int a, int b − list of parameters.']
661629
['Encapsulation – Encapsulation is capturing data and keeping it safely and securely from outside interfaces.', 'Inheritance- This is the process by which a class can be derived from a base class with all features of base class and some of its own. ... ', 'Polymorphism- This is the ability to exist in various forms.']