Use finally : Exception Finally « Language Basics « C# / C Sharp






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  2. Language Basics
  3. Exception Finally

Use finally

Use finally
/*
C#: The Complete Reference 
by Herbert Schildt 

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

// Use finally. 
 
using System; 
 
class UseFinally { 
  public static void genException(int what) { 
    int t; 
    int[] nums = new int[2]; 
 
    Console.WriteLine("Receiving " + what); 
    try { 
      switch(what) { 
        case 0:  
          t = 10 / what; // generate div-by-zero error 
          break; 
        case 1: 
          nums[4] = 4; // generate array index error. 
          break; 
        case 2: 
          return; // return from try block 
      } 
    } 
    catch (DivideByZeroException) { 
      // catch the exception 
      Console.WriteLine("Can't divide by Zero!"); 
      return; // return from catch 
    } 
    catch (IndexOutOfRangeException) { 
      // catch the exception 
      Console.WriteLine("No matching element found."); 
    } 
    finally { 
      Console.WriteLine("Leaving try."); 
    } 
  }   
} 
 
public class FinallyDemo { 
  public static void Main() { 
     
    for(int i=0; i < 3; i++) { 
      UseFinally.genException(i); 
      Console.WriteLine(); 
    } 
  } 
}








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