Why aren't variables declared in “try” in scope in “catch” or “finally”?

Question

In C# and in Java (and possibly other languages as well), variables declared in a \"try\" block are not in scope in the corresponding \"catch\" or \"finally\" blocks. For e

Answer 1

What if the exception is thrown in some code which is above the declaration of the variable. Which means, the declaration itself was not happend in this case.

try {

       //doSomeWork // Exception is thrown in this line. 
       String s;
       //doRestOfTheWork

} catch (Exception) {
        //Use s;//Problem here
} finally {
        //Use s;//Problem here
}