Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
162 views
in Technique[技术] by (71.8m points)

java - Convert List<String> to List<Integer> directly

After parsing my file " s" contains AttributeGet:1,16,10106,10111

So I need to get all the numbers after colon in the attributeIDGet List. I know there are several ways to do it. But is there any way we can Directly convert List<String> to List<Integer>. As the below code complains about Type mismatch, so I tried to do the Integer.parseInt, but I guess this will not work for List. Here s is String.

private static List<Integer> attributeIDGet = new ArrayList<Integer>();

if(s.contains("AttributeGet:")) {
    attributeIDGet = Arrays.asList(s.split(":")[1].split(","));
}
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

Using Java8:

stringList.stream().map(Integer::parseInt).collect(Collectors.toList());

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...