CODEWITHSUNDEEP
javalisttostring
sirFunkenstine
sirFunkenstine

Reputation: 8495

Strip brackets from String after list.toString operation

Does anyone know how to strip the brackets off the ends of a resulting string after running a List.toString() operation. Im wondering if there is a build in operation. One that does not involve looping through the string or creating a sub-string of the second and list.size()-1. Some code below. Thanks! 

 List<Element> elementsBetween = new ArrayList<Element>();
 elementBetween.add("some data");
 String result = = elementsBetween.toString();

Upvotes: 0

Views: 590

Answers (2)

Konstantin Yovkov
Konstantin Yovkov

Reputation: 62864

Using Guava, you can do:

List<String> items = Arrays.asList("a","b","c");
String output = Joiner.on(", ").join(items);
System.out.println(output);

which will result in:

a, b, c

You can read more here.

Upvotes: 3

Ren&#233; Link
Ren&#233; Link

Reputation: 51353

As far as I understand you you want a List of String elements to be represented as:

 "element1, element2, element3"

You should use a library like apache commons-lang. E.g. the StringUtils.join(Collection collection, String separator)

 List<Element> elementsBetween = new ArrayList<Element>();
 elementBetween.add("some data1");
 elementBetween.add("some data2");
 String joined = StringUtils.join(elementsBetween, ", ");
 // joined will be equal to
 "some data1, some data2"

Upvotes: 3

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