Spongi :
Does it exist better way to parse String to Integer using stream than this :
String line = "1 2 3 4 5";
List<Integer> elements = Arrays.stream(line.split(" ")).mapToInt(x -> Integer.parseInt(x))
.boxed().collect(Collectors.toList());
Eran :
You can eliminate one step if you parse the String directly to Integer:
String line = "1 2 3 4 5";
List<Integer> elements = Arrays.stream(line.split(" ")).map(Integer::valueOf)
.collect(Collectors.toList());
Or you can stick to primitive types, which give better performance, by creating an int array instead of a List<Integer>:
int[] elements = Arrays.stream(line.split(" ")).mapToInt(Integer::parseInt).toArray ();
You can also replace
Arrays.stream(line.split(" "))
with
Pattern.compile(" ").splitAsStream(line)
I'm not sure which is more efficient, though.
Guess you like
Origin http://10.200.1.11:23101/article/api/json?id=458877&siteId=1