Convert a java arraylist to comma delimited string

Thanks!

String myString= myArrayList.toString();
myString= myString.substring(1,myString.length()-1);
       

Actually the toString method will not return the arraylist's values, unless you override it.

I think you'll have to iterate through the arraylist, but you can use the enhanced for loop (if you're using JDK 5 or greater):

StringBuilder sb = new StringBuilder();
int count = 0;
 
for (String s : yourArray) {
     sb.append(s);
     if (++count != yourArray.length) {
         sb.append(",");
     }
}
 
return sb.toString();

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> Is there a fast way to convert a java arraylist to comma delimited string without using an Iterator?
NO. You need to traverse through the list once to produce the string output. toString method does the same.