C# Language Specification - Willy .Net

Chapter 8 Language Overviewlock statements static void Main() {A a = …;lock(a) {a.P = a.P + 1;}}using statements static void Main() {using (Resource r = new Resource()) {r.F();}}8.7 ClassesClass declarations define new reference types. A class can inherit from another class, and can implementinterfaces.Class members can include constants, fields, methods, properties, events, indexers, operators, instanceconstructors, destructors, static constructors, and nested type declarations. Each member has an associatedaccessibility (§10.5), which controls the regions of program text that are able to access the member. Thereare five possible forms of accessibility. These are summarized in the table below.FormpublicprotectedinternalprotectedinternalprivateIntuitive meaningAccess not limitedAccess limited to the containing class or types derived from the containing classAccess limited to this programAccess limited to this program or types derived from the containing classAccess limited to the containing typeThe exampleusing System;class MyClass{public MyClass() {Console.WriteLine("Instance constructor");}public MyClass(int value) {MyField = value;Console.WriteLine("Instance constructor");}~MyClass() {Console.WriteLine("Destructor");}public const int MyConst = 12;public int MyField = 34;public void MyMethod(){Console.WriteLine("MyClass.MyMethod");}public int MyProperty {get {return MyField;}31