If you are a Java developer, C#'s exception handling mechanism is very similar to Java's, and you will feel very comfortable.  There are, of course, new things to learn – C# has done away with checked exceptions and built in something called inner exceptions, as well as other minor improvements.
 VB 6 developers will find exception handling a totally new thing to pick up when they move over to VB .NET. VB 6 has no proper exception handling mechanism, and developers rely on the ancient On Error Goto construct to handle errors.
C# has four keywords for exception handling – try, catch, finally, and throw. Notice that C# does not have the throws keyword which Java developers use when declaring methods.
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