title: The method add(String) in the type ArrayList<String> is not applicable for the arguments (String[])
body: <p>I'm a beginner in JAVA and programming in general, so please be patient as I may not use the correct  terms to correctly describe my doubts. I'll do my best, nevertheless.
  So, I have this ArrayList that I'm going to use regular expressions on, to split it on the commas.
  I really needed some help solving this problem, even if I have to change the way that I do the process. It's not important that it stays this way, it's the final result that matters the most to me.
  Thank you. </p>
  
  <pre><code>  String temp; 
      String temp2;
      ArrayList &lt;String&gt; tempsplit = new ArrayList&lt;String&gt; (); 
      ArrayList &lt;String&gt; dominios = new ArrayList&lt;String&gt; (); {
  
      for (int h = 0; h &lt; 191; h++){
          temp = features.get(h);
          **temp2.add(temp.split(","));
          tempsplit.add(temp.split(","));** 
          //in these last couple lines I get the error "The method add(String) in the type ArrayList&lt;String&gt; is not applicable for the arguments (String[])" 
          for(int oi = 0; oi &lt; tempsplit.size(); oi++){
              for (int t = 0; t &lt; dominios.size() ; t++){
                  int conf = 0;
                  if (tempsplit.get(oi) == dominios.get(t)){
                      conf = 0;           
                      }
                  else{ conf = 1;
          }
                  if (conf == 1){
                      dominios.add (tempsplit.get(oi));
                  }
              }
          }
  </code></pre>