/*
Learning C# 
by Jesse Liberty

Publisher: O'Reilly 
ISBN: 0596003765
*/
 using System;
 using System.Text;

 namespace StringSearch
 {
    public class TesterStringSearch1
    {
       public void Run()
       {
           // create some strings to work with
           string s1 = "One,Two,Three Liberty Associates, Inc.";

           // constants for the space and comma characters
           const char Space = ' ';
           const char Comma = ',';

           // array of delimiters to split the sentence with
           char[] delimiters = new char[]
          {
              Space,
              Comma
          };

           // use a StringBuilder class to build the
           // output string
           StringBuilder output = new StringBuilder();
           int ctr = 1;

           // split the string and then iterate over the
           // resulting array of strings
           foreach (string subString in s1.Split(delimiters))
           {
               // AppendFormat appends a formatted string
               output.AppendFormat("{0}: {1}
",ctr++,subString);
           }
           Console.WriteLine(output);

       }

       [STAThread]
       static void Main()
       {
          TesterStringSearch1 t = new TesterStringSearch1();
          t.Run();
       }
    }
 }


           
          

   

/*
Learning C# 
by Jesse Liberty

Publisher: O'Reilly 
ISBN: 0596003765
*/

 using System;

 namespace StringSearch
 {
     public class TesterStringSearch
     {
         public void Run()
         {
             // create some strings to work with
             string s1 = "One,Two,Three Liberty Associates, Inc. ";

             // constants for the space and comma characters
             const char Space = ' ';
             const char Comma = ',';

             // array of delimiters to split the sentence with
             char[] delimiters = new char[]
             {
                 Space,
                 Comma
             };

             string output = "";
             int ctr = 1;

             // split the string and then iterate over the
             // resulting array of strings

             String[] resultArray = s1.Split(delimiters);

             foreach (String subString in resultArray)
             {
                 output += ctr++;
                 output += ": ";
                 output += subString;
                 output += "
";
             }
             Console.WriteLine(output);

         }

         static void Main()
         {
             TesterStringSearch t = new TesterStringSearch();
             t.Run();
         }
     }
 }

           
          

   

/*
Learning C# 
by Jesse Liberty

Publisher: O'Reilly 
ISBN: 0596003765
*/

 using System;

 namespace StringSearch
 {
    public class TesterStringLastIndex
    {
       public void Run()
       {
           // create some strings to work with
           string s1 = "One Two Three Four";

           int index;

           // get the index of the last space
           index=s1.LastIndexOf(" ");

           // get the last word.
           string s2 = s1.Substring(index+1);

           // set s1 to the substring starting at 0
           // and ending at index (the start of the last word
           // thus s1 has one two three
           s1 = s1.Substring(0,index);

           // find the last space in s1 (after two)
           index = s1.LastIndexOf(" ");

           // set s3 to the substring starting at
           // index, the space after "two" plus one more
           // thus s3 = "three"
           string s3 = s1.Substring(index+1);

           // reset s1 to the substring starting at 0
           // and ending at index, thus the string "one two"
           s1 = s1.Substring(0,index);

           // reset index to the space between
           // "one" and "two"
           index = s1.LastIndexOf(" ");

           // set s4 to the substring starting one
           // space after index, thus the substring "two"
           string s4 = s1.Substring(index+1);

           // reset s1 to the substring starting at 0
           // and ending at index, thus "one"
           s1 = s1.Substring(0,index);

           // set index to the last space, but there is
           // none so index now = -1
           index = s1.LastIndexOf(" ");

           // set s5 to the substring at one past
           // the last space. there was no last space
           // so this sets s5 to the substring starting
           // at zero
           string s5 = s1.Substring(index+1);

           Console.WriteLine ("s2: {0}
s3: {1}",s2,s3);
           Console.WriteLine ("s4: {0}
s5: {1}
",s4,s5);
           Console.WriteLine ("s1: {0}
",s1);
       }

       static void Main()
       {
          TesterStringLastIndex t = new TesterStringLastIndex();
          t.Run();
       }
    }
 }

           
          

   
 


using System;

class MainClass {

    public static void Main() {
        string[] myStrings = {"To", "be", "or", "not","to", "be"};
        string myString = String.Join(".", myStrings);        

        int index = myString.IndexOf("be");

        Console.WriteLine(""be" first occurs at index " + index + " of myString");
        index = myString.LastIndexOf("be");
        Console.WriteLine(""be" last occurs at index " + index + " of myString");
        index = myString.IndexOf('b');
        Console.WriteLine("'b' first occurs at index " + index + " of myString");
        index = myString.LastIndexOf('b');
        Console.WriteLine("'b' last occurs at index " + index + " of myString");


    
    }
}

    

   

/*
C#: The Complete Reference 
by Herbert Schildt 

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/


// Search strings. 
 
using System; 
 
public class StringSearchDemo { 
  public static void Main() { 
    string str = "C# has powerful string handling."; 
    int idx; 
 
    Console.WriteLine("str: " + str); 
 
    idx = str.IndexOf('h'); 
    Console.WriteLine("Index of first 'h': " + idx); 
 
    idx = str.LastIndexOf('h'); 
    Console.WriteLine("Index of last 'h': " + idx); 
 
    idx = str.IndexOf("ing"); 
    Console.WriteLine("Index of first "ing": " + idx); 
 
    idx = str.LastIndexOf("ing"); 
    Console.WriteLine("Index of last "ing": " + idx); 
 
    char[] chrs = { 'a', 'b', 'c' }; 
    idx = str.IndexOfAny(chrs); 
    Console.WriteLine("Index of first 'a', 'b', or 'c': " + idx); 
 
    if(str.StartsWith("C# has")) 
      Console.WriteLine("str begins with "C# has""); 
 
    if(str.EndsWith("ling.")) 
      Console.WriteLine("str ends with "ling.""); 
  } 
}

           
          

   
 
using System;
public class Class1 {
    public static void Main(string[] strings) {
        char[] cSpecialChars = { '
', ',', '_' };
        string s = "_This is, a str
ing";
        Console.WriteLine(RemoveSpecialChars(s, cSpecialChars));
    }
    public static string RemoveSpecialChars(string sInput,char[] cTargets) {
        string sOutput = sInput;
        foreach (char c in cTargets) {
            for (; ; ) {
                int nOffset = sOutput.IndexOf(c);
                if (nOffset == -1) {
                    break;
                }
                string sBefore = sOutput.Substring(0, nOffset);
                string sAfter = sOutput.Substring(nOffset + 1);
                sOutput = sBefore + sAfter;
            }
        }
        return sOutput;
    }
}

    

   


using System;

public class StringTest
{
    public static void Main()
    {
        string test1 = "This is a test string";
        string test2, test3;

        test2 = test1.Insert(15, "application ");
        test3 = test1.ToUpper();

        Console.WriteLine("test1: '{0}'", test1);
        Console.WriteLine("test2: '{0}'", test2);
        Console.WriteLine("test3: '{0}'", test3);

        if (test1 == test3)
            Console.WriteLine("test1 is equal to test3");
        else
            Console.WriteLine("test1 is not equal to test3");
        
        test2 = test1.Replace("test", "sample");
        Console.WriteLine("the new test2: '{0}'", test2);

    }
}