A simple Google search didn't result anything (although I'm not known
for my Google usage skills), but how would I stop the operation when an
exception occurs?

(For example, how would I prevent "int four = 2 + 2;" from being
executed in the following example:

try {
int division = 100/0;
int four = 2 + 2;
}
catch (DivideByZeroException de) {
Console.WriteLine("you've destroyed the world, way to go");
} ?)