/*
C# Programming Tips & Techniques
by Charles Wright, Kris Jamsa

Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/
// ForEach.cs — Sums the values in an array using a foreach loop
//
// Compile this program with the folowing command line
// C:>csc ForEach.cs
//
namespace nsForEach
{
using System;
public class ForEach
{
static public void Main ()
{
DateTime now = DateTime.Now;
Random rand = new Random ((int) now.Millisecond);
int [] Arr = new int [10];
for (int x = 0; x < Arr.Length; ++x) { Arr[x] = rand.Next () % 100; } int Total = 0; Console.Write ("Array values are "); foreach (int val in Arr) { Total += val; Console.Write (val + ", "); } Console.WriteLine ("and the average is {0,0:F1}", (double) Total / (double) Arr.Length); } } } [/csharp]

   

/*
Mastering Visual C# .NET
by Jason Price, Mike Gunderloy

Publisher: Sybex;
ISBN: 0782129110
*/

/*
  Example4_12.cs illustrates the use of
  a foreach loop
*/

public class Example4_12
{

  public static void Main()
  {

    int [] myValues = {2, 4, 3, 5, 1};
    foreach (int counter in myValues)
    {
      System.Console.WriteLine("counter = " + counter);
    }

  }

}

           
          

/*
C#: The Complete Reference
by Herbert Schildt

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
// Search an array using foreach.

using System;

public class Search {
public static void Main() {
int[] nums = new int[10];
int val;
bool found = false;

// give nums some values
for(int i = 0; i < 10; i++) nums[i] = i; val = 5; // use foreach to search nums for key foreach(int x in nums) { if(x == val) { found = true; break; } } if(found) Console.WriteLine("Value found!"); } } [/csharp]

/*
C#: The Complete Reference
by Herbert Schildt

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
// Use foreach on a two-dimensional array.

using System;

public class ForeachDemo2 {
public static void Main() {
int sum = 0;
int[,] nums = new int[3,5];

// give nums some values
for(int i = 0; i < 3; i++) for(int j=0; j < 5; j++) nums[i,j] = (i+1)*(j+1); // use foreach to display and sum the values foreach(int x in nums) { Console.WriteLine("Value is: " + x); sum += x; } Console.WriteLine("Summation: " + sum); } } [/csharp]

/*
C#: The Complete Reference
by Herbert Schildt

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
// Use break with a foreach.

using System;

public class ForeachDemo1 {
public static void Main() {
int sum = 0;
int[] nums = new int[10];

// give nums some values
for(int i = 0; i < 10; i++) nums[i] = i; // use foreach to display and sum the values foreach(int x in nums) { Console.WriteLine("Value is: " + x); sum += x; if(x == 4) break; // stop the loop when 4 is obtained } Console.WriteLine("Summation of first 5 elements: " + sum); } } [/csharp]

/*
C#: The Complete Reference
by Herbert Schildt

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
// Use the foreach loop.

using System;

public class ForeachDemo {
public static void Main() {
int sum = 0;
int[] nums = new int[10];

// give nums some values
for(int i = 0; i < 10; i++) nums[i] = i; // use foreach to display and sum the values foreach(int x in nums) { Console.WriteLine("Value is: " + x); sum += x; } Console.WriteLine("Summation: " + sum); } } [/csharp]

   

/*
 * C# Programmers Pocket Consultant
 * Author: Gregory S. MacBeth
 * Email: gmacbeth@comporium.net
 * Create Date: June 27, 2003
 * Last Modified Date:
 */
using System;
using System.Collections;

namespace Client.Chapter_3___Structs__Enums__Arrays_and_Classes
{
  public class HashTablesChapter_3___Structs__Enums__Arrays_and_Classes
  {
    static void Main(string[] args)
    {
      Hashtable a = new Hashtable(10);
      Hashtable.Synchronized(a);
            
      a.Add(100, "Arrays");
      a.Add(200, "Classes");
      

      foreach(DictionaryEntry d in a)
      {
        Console.WriteLine(d.Value);
      }

      a.Remove(100);
      a.Remove(200);
      a.Clear();

    }
  }
}