Several catch branches : Exception Try Catch « Language Basics « C# / C Sharp

1. C# / C Sharp
2. Language Basics
3. Exception Try Catch

Several catch branches

/*
Learning C# 
by Jesse Liberty

Publisher: O'Reilly 
ISBN: 0596003765
*/

 using System;

 namespace ExceptionHandling
 {
    public class TesterExceptionHandling4
    {

       public void Run()
       {
           try
           {
               double a = 5;
               double b = 0;
               Console.WriteLine("Dividing {0} by {1}...",a,b);
               Console.WriteLine ("{0} / {1} = {2}",
                   a, b, DoDivide(a,b));
           }

               // most derived exception type first
           catch (System.DivideByZeroException)
           {
               Console.WriteLine(
                   "DivideByZeroException caught!");
           }

           catch (System.ArithmeticException)
           {
               Console.WriteLine(
                   "ArithmeticException caught!");
           }

               // generic exception type last
           catch
           {
               Console.WriteLine(
                   "Unknown exception caught");
           }
       }

        // do the division if legal
        public double DoDivide(double a, double b)
        {
            if (b == 0)
                throw new System.DivideByZeroException();
            if (a == 0)
                throw new System.ArithmeticException();
            return a/b;
        }


        static void Main()
        {
            Console.WriteLine("Enter Main...");
            TesterExceptionHandling4 t = new TesterExceptionHandling4();
            t.Run();
            Console.WriteLine("Exit Main...");
        }


    }
 }

           
       

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2.	illustrates an unhandled exception
3.	illustrates how to handle a specific exception
4.	illustrates multiple catch blocks
5.	illustrates a nested try/catch block
6.	illustrates exception propagation with methods
7.	Catch Divide By Zero Exception
8.	Demonstrates stacking catch blocks to provide alternate code for more than one exception type
9.	Catches an exception that was thrown in a component
10.	Throw a format exception purposely to demonstrate catching a FormatException
11.	Demonstrates using if statements to sort out an IOException
12.	Demonstrate exception handling
13.	An exception can be generated by one method and caught by another
14.	Exception Type Mismatch
15.	Handle error gracefully and continue
16.	Use multiple catch statements
17.	Use the 'catch all' catch statement
18.	Use a nested try block
19.	Catch different exceptions
20.	Passing Exceptions on to the Caller: Caller Confuse
21.	Passing Exceptions on to the Caller: Caller Inform
22.	Exception Handling:Trying and Catching