What is exception handling in C#?

Exceptions are problem that arise when a program in executed. The following keyword handles exceptions in C#.

try

A try block identifies a block of code for which particular exceptions is activated.

Catch

The catch keyword indicates the catching of an exception.

finally

Execute a given set of statements, whether an exception is thrown or not thrown.

throw

An exception is thrown when a problem shows up in a program.

Let us see an example to handle error in a C# program −

using System;

namespace MyErrorHandlingApplication {

   class DivNumbers {
      int result;

      DivNumbers() {
         result = 0;
      }
      public void myDivision(int num1, int num2) {
         try {
            result = num1 / num2;
         } catch (DivideByZeroException e) {
            Console.WriteLine("Exception Caught: {0}", e);
         } finally {
            Console.WriteLine("Result: {0}", result);
         }
      }

      static void Main(string[] args) {
         DivNumbers d = new DivNumbers();
         d.myDivision(5, 0);
         Console.ReadKey();
      }
   }
}