using System;
class RangeArrayException : ApplicationException {
public RangeArrayException() : base() { }
public RangeArrayException(string str) : base(str) { }
public override string ToString() {
return Message;
}
}
class MainClass {
public static void Main() {
try {
throw new RangeArrayException("Low index not less than high.");
} catch (RangeArrayException exc) {
Console.WriteLine(exc);
}
}
}
Low index not less than high.