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2010-05-26T11:39:40Z

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==Class level Variable scope==

<source lang="csharp">
/*
C# Programming Tips & Techniques
by Charles Wright, Kris Jamsa
Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/
namespace nsScope
{
using System;
public class Scope
{
int Var = 42;
static public void Main ()
{
Scope cls = new Scope();
int Var = 23;
Console.WriteLine ("Class variable = " + cls.Var);
Console.WriteLine ("Function variable = " + Var);
}
}
}

</source>

==method scope variable==

<source lang="csharp">
using System;
class IncDecApp
{
public static void Foo(int j)
{
Console.WriteLine("IncDecApp.Foo j = {0}", j);
}

static void Main(string[] args)
{
int i = 1;

Console.WriteLine("Before Foo(i++) = {0}", i);
Foo(i++);
Console.WriteLine("After Foo(i++) = {0}", i);

Console.WriteLine();

Console.WriteLine("Before Foo(++i) = {0}", i);
Foo(++i);
Console.WriteLine("After Foo(++i) = {0}", i);
}
}
</source>

==Scope class demonstrates instance and local variable scopes.==

<source lang="csharp">

using System;
public class Scope
{
private int x = 1;
public void Begin()
{
int x = 5;
Console.WriteLine(x );
UseLocalVariable();
UseInstanceVariable();
UseLocalVariable();
UseInstanceVariable();
Console.WriteLine(x );
}
public void UseLocalVariable()
{
int x = 25;
Console.WriteLine("UseLocalVariable is {0}", x );
x++;
Console.WriteLine("before exiting UseLocalVariable is {0}", x );
}
public void UseInstanceVariable()
{
Console.WriteLine( "instance variable x on entering {0} is {1}","method UseInstanceVariable", x );
x *= 10;
Console.WriteLine( "instance variable x before exiting {0} is {1}","method UseInstanceVariable", x );
}
}
public class ScopeTest
{
public static void Main( string[] args )
{
Scope testScope = new Scope();
testScope.Begin();
}
}

</source>

==Scoping in C#.==

<source lang="csharp">

using System;
class MainClass {
// Class level x variable
static int x = 10;
public static void Main() {
// Locally defined copy of x
int x = 5;
int y = x;
double z = y + 10.25;
int a = (int)z;
Console.WriteLine("X = {0} Y = {1} Z = {2}", x, y, z);
Console.WriteLine("A = {0}", a);
Console.WriteLine("Class Level X = {0}", MainClass.x);
}
}
</source>

==System maximums and minimums.==

<source lang="csharp">

using System;
class MainClass {
public static void Main() {
// First, print out the minimum values
Console.WriteLine("System Minimums\n");
Console.WriteLine("MinSByte {0}", System.SByte.MinValue);
Console.WriteLine("MinByte {0}", System.Byte.MinValue);
Console.WriteLine("MinInt16 {0}", System.Int16.MinValue);
Console.WriteLine("MinUInt16 {0}", System.UInt16.MinValue);
Console.WriteLine("MinInt32 {0}", System.Int32.MinValue);
Console.WriteLine("MinUInt32 {0}", System.UInt32.MinValue);
Console.WriteLine("MinInt64 {0}", System.Int64.MinValue);
Console.WriteLine("MinUInt64 {0}", System.UInt64.MinValue);
Console.WriteLine("MinChar {0}", System.Char.MinValue);
Console.WriteLine("MinSingle {0}", System.Single.MinValue);
Console.WriteLine("MinDouble {0}", System.Double.MinValue);
// Console.WriteLine( "MinBoolean {0}", System.Boolean.MinValue);
Console.WriteLine("MinDecimal {0}", System.Decimal.MinValue);
Console.WriteLine("\nSystem Maximums\n");
Console.WriteLine("MaxSByte {0}", System.SByte.MaxValue);
Console.WriteLine("MaxByte {0}", System.Byte.MaxValue);
Console.WriteLine("MaxInt16 {0}", System.Int16.MaxValue);
Console.WriteLine("MaxUInt16 {0}", System.UInt16.MaxValue);
Console.WriteLine("MaxInt32 {0}", System.Int32.MaxValue);
Console.WriteLine("MaxUInt32 {0}", System.UInt32.MaxValue);
Console.WriteLine("MaxInt64 {0}", System.Int64.MaxValue);
Console.WriteLine("MaxUInt64 {0}", System.UInt64.MaxValue);
Console.WriteLine("MaxChar {0}", System.Char.MaxValue);
Console.WriteLine("MaxSingle {0}", System.Single.MaxValue);
Console.WriteLine("MaxDouble {0}", System.Double.MaxValue);
Console.WriteLine("MaxDecimal {0}", System.Decimal.MaxValue);
}
}
</source>

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