Linked Questions

This is a example: code A: files.forEach(f -> { //TODO }); and another code B may use on this way: files.stream().forEach(f -> { }); What is the difference between both, with stream() and ...

It looks like I can call list.forEach(a -> a.stuff()) directly on my collection, instead of list.stream().forEach(a -> a.stuff()). When would I use one over the other (parallelStream() aside..)?

Starts from java 8 to iterate throug list I can use both: List list = new ArrayList(); 1. list.forEach(...) 2. list.stream().forEach(...) Is it any advantages of using second case? To convert list to ...

I know we can use List.foreach to traverse，and we can use List.stream.foreach to traverse too. I do not understand which is better to traverse in Java8.

I would like to know what is the difference between these two three pieces of code: underlyingConnectors.values().stream().forEach(connector -> connector.start()); underlyingConnectors.values()....

I've been learning how to use streams and lambda expressions, and came across this question. What is the difference between: Arrays.asList(myDogs).forEach((d) -> {System.out.println(d.toString());...

List<Object> someList = getSomeList(); someList.stream().forEach( (callSomeCompletableFutureFunction) .thenCompose ( call another completableFutureFunction) ....

Which of the following is 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 ...

Just iterating below list & adding into another shared mutable list via java 8 streams. List<String> list1 = Arrays.asList("A1","A2","A3","A4","A5","A6","A7","A8","B1","B2","B3"); List<...

I have two simple POJOs: public class Parent { String name; List<Child> children = new ArrayList<>(); void addChild(Integer age) { children.add(new Child(age)); } } public ...

First of all, These classes are mock data classes. I have list of phones and i have to create a new list that has phone types only. For that, I have two options, If anyone can explain which option is ...

I have a save method that returns CommandDTO. // ... final MenuItem saved = menuItemRepository.save(menuItem); return CommandDTO.builder().uuid(saved.getUuid()).build(); Here is my CommandDTO: @...

Actually I want to throw two exceptions as part of checking two conditions. But wondering how to throw these exceptions after streaming and mapping it. This is the code to be converted to Java-8 ...