using System;

public class Starter{
    public static void Main(){
       MethodA<int>(20);
    }
    public static void MethodA<T>(T param) {
       Console.WriteLine(param.GetType().ToString());
    }

}

 

           
          

using System;

class ArrayUtils {

public static bool copyInsert(T e, int idx, T[] src, T[] target) {

if(target.Length < src.Length+1) return false; for(int i=0, j=0; i < src.Length; i++, j++) { if(i == idx) { target[j] = e; j++; } target[j] = src[i]; } return true; } } class Test { public static void Main() { int[] nums = { 1, 2, 3 }; int[] nums2 = new int[4]; Console.Write("Contents of nums: "); foreach(int x in nums) Console.Write(x + " "); Console.WriteLine(); ArrayUtils.copyInsert(99, 2, nums, nums2); Console.Write("Contents of nums2: "); foreach(int x in nums2) Console.Write(x + " "); Console.WriteLine(); string[] strs = { "Generics", "are", "powerful."}; string[] strs2 = new string[4]; Console.Write("Contents of strs: "); foreach(string s in strs) Console.Write(s + " "); Console.WriteLine(); ArrayUtils.copyInsert("in C#", 1, strs, strs2); Console.Write("Contents of strs2: "); foreach(string s in strs2) Console.Write(s + " "); } } [/csharp]

   
 

using System;


public class Starter {
    public static void Main() {
        MyClass.MethodA<int>(20);
    }
}

public class MyClass {
    public static void MethodA<T>(T param) {
        Console.WriteLine(param.GetType().ToString());
    }
}

    

using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;

public interface IPresentation {
string Title {
get;
}
string Content {
get;
}
}

public class Presentation : IPresentation {
private string title;
public string Title {
get {
return title;
}
}

private string content;
public string Content {
get {
return content;
}
}

public Presentation(string title, string content) {
this.title = title;
this.content = content;
}
}

public class ProcessPresentations
where TPresentation : IPresentation
where TPresentationManager : IPresentationManager {
public static void Start(TPresentationManager dm) {
new Thread(new ProcessPresentations(dm).Run).Start();
}

protected ProcessPresentations(TPresentationManager dm) {
documentManager = dm;
}

private TPresentationManager documentManager;

protected void Run() {
while (true) {
if (documentManager.IsPresentationAvailable) {
TPresentation doc = documentManager.GetPresentation();
Console.WriteLine(“Processing document {0}”, doc.Title);
}
Thread.Sleep(20);
}
}
}

public interface IPresentationManager {
void AddPresentation(T doc);
T GetPresentation();
bool IsPresentationAvailable {
get;
}
}

public class PresentationManager : IPresentationManager {
private Queue documentQueue = new Queue();

public void AddPresentation(T doc) {
lock (this) {
documentQueue.Enqueue(doc);
}
}

public T GetPresentation() {
T doc;
lock (this) {
doc = documentQueue.Dequeue();
}
return doc;
}

public bool IsPresentationAvailable {
get {
return (documentQueue.Count > 0) ? true : false;
}
}
}

class Program {
static void Main(string[] args) {
PresentationManager dm = new PresentationManager();

ProcessPresentations>.Start(dm);

for (int i = 0; i < 1000; i++) { Presentation d1 = new Presentation("title" + i.ToString(), "content"); dm.AddPresentation(d1); Console.WriteLine("added document {0}", d1.Title); Thread.Sleep(10); } } } [/csharp]

   
 
using System;
using System.Collections.Generic;
using System.Text;

class Program {
    static void Main(string[] args) {
        Console.WriteLine("Generic Interfaces");

        BasicMath m = new BasicMath();
        Console.WriteLine("1 + 1 = {0}", m.Add(1, 1));
        Console.ReadLine();
    }
}
public interface IBinaryOperations<T> {
    T Add(T arg1, T arg2);
    T Subtract(T arg1, T arg2);
    T Multiply(T arg1, T arg2);
    T Divide(T arg1, T arg2);
}

public class BasicMath : IBinaryOperations<int> {
    public int Add(int arg1, int arg2) { return arg1 + arg2; }

    public int Subtract(int arg1, int arg2) { return arg1 - arg2; }

    public int Multiply(int arg1, int arg2) { return arg1 * arg2; }

    public int Divide(int arg1, int arg2) { return arg1 / arg2; }


}

    

using System;

public interface ISequence {
T getNext();
void reset();
void setStart(T v);
}

class ByTwos : ISequence {
T start;
T val;

public delegate T IncByTwo(T v);

IncByTwo incr;

public ByTwos(IncByTwo incrMeth) {
start = default(T);
val = default(T);
incr = incrMeth;
}

public T getNext() {
val = incr(val);
return val;
}

public void reset() {
val = start;
}

public void setStart(T v) {
start = v;
val = start;
}
}

class GenIntfDemo {
static int intPlusTwo(int v) {
return v + 2;
}

static double doublePlusTwo(double v) {
return v + 2.0;
}

public static void Main() {
ByTwos intBT = new ByTwos(intPlusTwo);

for(int i=0; i < 5; i++) Console.Write(intBT.getNext() + " "); Console.WriteLine(); ByTwos dblBT = new ByTwos(doublePlusTwo);

dblBT.setStart(11.4);

for(int i=0; i < 5; i++) Console.Write(dblBT.getNext() + " "); } } [/csharp]

   
 

public delegate void ADelegate<T>(T tvalue);

public class MyClass{
    public void MethodA() {
        ADelegate<int> del=delegate(int var) {
        };
    }
}

public class YClass<T>{
    public delegate void BDelegate(T tValue);
    public void MethodA() {
        BDelegate del=delegate(T tValue) {
        };
    }
}