When should I use the finally-block in Java's try-catch-finally

Question

When should I use code snippet A instead of snippet B (i.e. what are the benefits of using snippet A)?:

Snippet A:

try {
    // codeblock A
}
catch (Exception ex) {
    // codeblock B
}
finally {
    //codeblock C
}

Snippet B:

try {
    // codeblock A
}
catch (Exception ex) {
    // codeblock B
}

//codeblock C

Answer 1

Use a finally block if you have code that must execute regardless of whether or not an exception is thrown.

Cleaning up scarce resources like database connections are a good example.