Below is a complete example of throwing an exception from a method and catching/handling that exception further up the call stack.
Code for Dog class that throws an exception if we ask a dog to bark too many times:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | public class Dog{ public string Name { get; set; } public int Age { get; set; } // Dog constructor public Dog(string name, int age) { Name = name; Age = age; } // <span class="skimlinks-unlinked">Dog.Bark</span> public void Bark(int numTimes) { if (numTimes > 10) throw new ArgumentException( string.Format("{0} is just too many times to bark", numTimes)); for (int i = 1; i <= numTimes; i++) Console.WriteLine("Woof"); }} |
Code that calls the Bark method, with an exception handler in the Main() method:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | static void Main(string[] args){ try { Console.WriteLine("Before MethodA call"); MethodA(); Console.WriteLine("After MethodA call"); } catch (Exception xx) { Console.WriteLine( string.Format("Caught in Main(): {0}", xx.Message)); } Console.ReadLine();}private static void MethodA(){ Console.WriteLine("Before MethodB call"); MethodB(); Console.WriteLine("After MethodB call");}private static void MethodB(){ Dog d = new Dog("Kirby", 15); d.Bark(99); Console.WriteLine("I barked 99 times");} |
Below is the output.
