Using the features in Java 8, what is the most concise way of transforming all the values of a list? [duplicate]

Answer 1

Maybe using the new stream concept in collections:

List keywords = Arrays.asList("Apple", "Ananas", "Mango", "Banana", "Beer");
//(1)
keywords = keywords.stream().map(s -> s.toUpperCase()).collect(Collectors.toList());
//(2)
List uppercaseKeywords = keywords.stream().map(s -> s.toUpperCase()).collect(Collectors.toList());