String.split() called on a String contained in another array not working correctly

Question

I am trying to obtain an array of Strings (dummy) which is to be converted to a custom object Combo, by splitting every String contained in a second array (readarray). This second array is obtained by splitting the contents of a file. Even though the array obtained by splitting the file's contents seems to be working fine, I can't seem to successfully split the Strings it contains, I get one empty return (dummy[0]) and the ones after are null. Also, readFromFile() simply uses a FileInputStream to return the full String the file contains.

ArrayList<Combo> combos=new ArrayList<>();
String[] dummy;
String read=readFromFile();
String[] readarray=read.split("#");
for (String ss:readarray) {
    dummy=ss.split("-");
    Combo combo=new Combo(dummy[0],Integer.parseInt(dummy[1]),Integer.parseInt(dummy[2]),Integer.parseInt(dummy[3]));
    combos.add(combo);
}

This is the String the file contains from which the above reads:

#22/09/2020-0900-2300-30#22/09/2020-0930-2330-30#22/09/2020-0900-2300-15

Help would be very much appreciated, thanks a lot.

Ali Momeni · Accepted Answer · 2020-09-30 15:26:44Z

1

remove the # from the beginning or the end of your string and you are fine. because it will create the first empty object in your array.

answered Sep 30, 2020 at 15:26

Ali Momeni

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1 Comment

Pinols Over a year ago

Looks like i shouldn't write a comment saying "thanks", but, thanks. I spent so much time on this while knowing it had to be something simple, thanks a lot.

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