Should try…catch go inside or outside a loop?

Question

I have a loop that looks something like this:

for (int i = 0; i < max; i++) {
    String myString = ...;
    float myNum = Float.parseFloat(myString);
            


        

Answer 1

If you want to catch Exception for each iteration, or check at what iteration Exception is thrown and catch every Exceptions in an itertaion, place try...catch inside the loop. This will not break the loop if Exception occurs and you can catch every Exception in each iteration throughout the loop.

If you want to break the loop and examine the Exception whenever thrown, use try...catch out of the loop. This will break the loop and execute statements after catch (if any).

It all depends on your need. I prefer using try...catch inside the loop while deploying as, if Exception occurs, the results aren't ambiguous and loop will not break and execute completely.