using System;
namespace Console_CSharp
{
class TestStatic
{
static void Main(string[] args)
{
//----------Test_StaticField-----------
Console.WriteLine("{0},{1},{2}", Test_StaticField.x, Test_StaticField.y, Test_StaticField.z); //1,2,0
Test_StaticField t = new Test_StaticField(3);
Console.WriteLine("{0},{1},{2}", Test_StaticField.x, Test_StaticField.y, Test_StaticField.z); //3,3,3
//----------Test_StaticConstructor-----------
Console.WriteLine("{0},{1}", Test_StaticConstructor.x, Test_StaticConstructor.y); //100,200
//----------Test_StaticMethod-----------
Test_StaticMethod.Method(); //10,20
//----------Test_StaticProperty-----------
Test_StaticProperty.X = 20; //SET
int val = Test_StaticProperty.X; //GET
//----------TestInheritance-----------
Console.WriteLine(SubTest_Inheritance.x); //25
//----------Test_InheritanceHide-----------
SubTest_InheritanceHide.Method(); // Derived static method
Console.WriteLine(SubTest_InheritanceHide.x); //50
Console.ReadLine();
}
}
}
//--------------------------------------------------------------------------------------------------
class Test_StaticField
{
public static int x = 1;
public static int y = 2;
public static int z; //default value = 0 before initialization
public Test_StaticField(int i)
{
x = i; //normal constructor can access static members
y = i;
z = i;
}
}
//--------------------------------------------------------------------------------------------------
class Test_StaticConstructor
{
public static int x;
public static int y;
public int z; //default value = 0 before initialization
static Test_StaticConstructor() //static constructor is to initialize the static members
{
x = 100;
y = 200;
//z = 300; //compile error - static constructors can't access non-static data members
}
}
//--------------------------------------------------------------------------------------------------
class Test_StaticMethod
{
private static int x = 10;
private static int y = 20;
private int z = 30;
public static void Method()
{
Console.WriteLine("{0},{1}", x, y); //cannot access z here, static method can access only static members
}
}
//--------------------------------------------------------------------------------------------------
class Test_StaticProperty
{
public static int X
{
get
{
Console.WriteLine("GET");
return 10;
}
set
{
Console.WriteLine("SET");
}
}
}
//--------------------------------------------------------------------------------------------------
class Test_Inheritance
{
public static int x = 25;
}
class SubTest_Inheritance : Test_Inheritance
{
}
//--------------------------------------------------------------------------------------------------
class Test_InheritanceHide
{
public static int x = 25;
public static void Method()
{
Console.WriteLine("Base static method");
}
}
class SubTest_InheritanceHide : Test_InheritanceHide
{
public new static int x = 50;
//A static member can't be marked as override, virtual or abstract.
//However it is possible to hide a base class static method in a derived class by using the keyword new.
public new static void Method()
{
Console.WriteLine("Derived static method");
}
}
