How to manipulate the string using stream API in Java. which api method is suitable.
I am trying some Java 8 features.
so lets say I have list of string
List<String> str = Arrays.asList("Hello World","Welcome America");
List<String> res = str.stream()
.map(st -> st.split(" "))
.collect(Collectors.)); // here after Collectors what should I use.
my output should be like : [Hello Welcome, Wrold America]
hwrw by using map i am transforming the list but I am not getting any method to collect that. any help so i can do it by using stream.
CodePudding user response：
It's not very clean or efficient, but here's one way:
List<String> res = IntStream.range(0, str.size())
.mapToObj(i -> str.stream()
.map(s -> s.split(" ")[i])
.collect(Collectors.joining(" ")))
.collect(Collectors.toList());