Tokenize strings : String Split « Data Types « C# / C Sharp

1. C# / C Sharp
2. Data Types
3. String Split

Tokenize strings

    
/*
C#: The Complete Reference 
by Herbert Schildt 

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


// Tokenize strings. 
 
using System; 
 
public class TokenizeDemo { 
  public static void Main() { 
    string[] input = { 
                      "100 + 19", 
                      "100 / 3.3", 
                      "-3 * 9", 
                      "100 - 87" 
                     }; 
    char[] seps = {' '}; 
 
    for(int i=0; i < input.Length; i++) { 
      // split string into parts 
      string[] parts = input[i].Split(seps); 
      Console.Write("Command: "); 
      for(int j=0; j < parts.Length; j++) 
        Console.Write(parts[j] + " "); 
    
      Console.Write(", Result: "); 
      double n = Double.Parse(parts[0]); 
      double n2 = Double.Parse(parts[2]); 
 
      switch(parts[1]) { 
        case "+": 
          Console.WriteLine(n + n2); 
          break; 
        case "-": 
          Console.WriteLine(n - n2); 
          break; 
        case "*": 
          Console.WriteLine(n * n2); 
          break; 
        case "/": 
          Console.WriteLine(n / n2); 
          break; 
      } 
    } 
  } 
}

           
         
    
    
    
  

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