Language Basics C# Tutorial

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  4. System Exception is the base exception class All exceptions in NET are derived from System Exception
using System;
public class Starter {
    public static void Main() {
        try {
            int var1 = 5, var2 = 0;
            var1 /= var2;    // exception occurs
        } catch (Exception except) {
            if (except is SystemException) {
                Console.WriteLine("Exception thrown by runtime");
            } else {
                Console.WriteLine("Exception thrown by application");
            }
        }
    }
}