Java - Create a delimiter string from string array

Question

What's the best way to convert a string array to a delimiter separated string.

eg:

String[] arr = {"apple","orange","banana","round"}; -------> apple-orange-banana-round?

Create a StringBuffer, loop `arr` and append each word to the StringBuffer — nullByteMe, Nov 18 '14 at 02:58
see this [link](http://stackoverflow.com/questions/1978933/a-quick-and-easy-way-to-join-array-elements-with-a-separator-the-opposite-of-sp) — Abbath, Nov 18 '14 at 02:58

score 0 · Answer 1 · answered Nov 18 '14 at 02:59

0

You can use a StringBuffer or StringBuilder (StringBuffer is thread safe) to make this:

StringBuffer sb = new StringBuffer();
for(String s : arr){
    sb.append(s + "-");
}
sb.deleteCharAt(sb.length()-1);
return sb.toString();

Does this make sense to you?

answered Nov 18 '14 at 02:59

Li Chao

It will work and I did think of this solution. Is this the best solution of this (common) problem? – Java User Nov 18 '14 at 04:42

1 Answers1