Java 8 Iterable.forEach() vs foreach loop -

which of following better practice in java 8?

java 8:

joins.foreach(join -> mirc.join(msession, join));

java 7:

for (string join : joins) {     mirc.join(msession, join); }

i have lots of loops "simplified" lambdas, there advantage of using them including performance , readability?

edit

i'll extend question longer methods - know cant return or break parent function lambda , should mentioned if compared, there else considered?

the advantage comes account when operations can executed in parallel. (see http://java.dzone.com/articles/devoxx-2012-java-8-lambda-and - section internal , external iteration)

the main advantage point of view implementation of done within loop can defined without having decide if executed in parallel or sequential
if want loop executed in parallel write
```
 joins.parallelstream().foreach((join) -> mirc.join(msession, join)); 
```
you have write code thread handling etc.

note : answer assumed joins implementing java.util.stream interface. if joins implements java.util.iterable interface no longer true.

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