Exception with try-catch and loop in Java

Question

In Java, what is the difference (in term of performance) between:

for (int i = 0; i < count; i++) {
    try {
        // code that throws Exception
    } catch (Exception e) {
        e.printStackTrace();
    }
}

and

try {
    for (int i = 0; i < count; i++) {
        // code that throws Exception
    }
} catch (Exception e) {
    e.printStackTrace();
}

Answer 1

In your first version the loop continues if it hits an exception, in the second version the loop continues after the catch block. That is the most important difference of those code snippets.

Answer 2

You can use both, but it all depends on what you want it to do. If you want to continue the execution after the loop finishes once then you do it the first way. If you want to catch an exception then stop executing the loop then you do the second. Performance wise it all depends on what you want to do with it.