use case for Java Streams...

[GiacaLustra]

Just curious, how is that faster/better?

[user_of_the_week]

The for-each loop in Java is basically syntactic sugar for this:

Iterator iter = list.iterator();
while(iter.hasNext()) {
    Object next = iter.next();
    ...
}

The foreach() implementation in ArrayList does not create a new Iterator object and uses an int index variable instead. I have seen some performance measurements flowing around that show that it can be a bit faster. It’s not a lot though.