I have a String object like
final String demoString = "1,2,19,12";
Now I want to create a Collection<String> from it. How can I do that?
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3 Answers
Guava:
List<String> it = Splitter.on(',').splitToList(demoString);
Standard JDK:
List<String> list = Arrays.asList(demoString.split(","))
Commons / Lang:
List<String> list = Arrays.asList(StringUtils.split(demoString, ","));
Note that you can't add or remove Elements from a List created by Arrays.asList, since the List is backed by the supplied array and arrays can't be resized. If you need to add or remove elements, you need to do this:
// This applies to all examples above
List<String> list = new ArrayList<String>(Arrays.asList( /*etc */ ))
answered Aug 8, 2011 at 8:16
Sean Patrick Floyd
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4 Comments
Saurabh Kumar
No no i want in Collection<String> and not as List<String>
Sean Patrick Floyd
A List<String> is a Collection<String>. You can change all of the above variable types to Collection<string>
To Kra
On guava also:
Splitter.on(',').splitToList(demoString)Sean Patrick Floyd
@ToKra that method didn't exist when this answer was written
Simple and good,
List<String> list = Arrays.asList(string.split(","))
Comments
you can create a List<String> and assign it to Collection<String> as List extends Collection.
final String demoString = "1,2,19,12";
Collection<String> collection = List.of(demoString.split(","));
