Java - Create a delimiter string from string array [duplicate]

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
– nullByteMe, Commented Nov 18, 2014 at 2:58

Li Chao · Accepted Answer · 2014-11-18 02:59:35Z

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, 2014 at 2:59

Li Chao

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1 Comment

It will work and I did think of this solution. Is this the best solution of this (common) problem?