Read file, And append line to it.

Hello, I'm loading ARFF file from file, which last line on it represent a customer. This is working ok. This line contain comma separated data. I would like to load the same file but WITHOUT the last line (just the attributes), and : 1. To get from user the variable from GUI that i built, using jCheckbox and jComboBox. 2. Append this line to the variable that holds the read file. For example: in the GUI I check the box for Eggs, Milk, Water and Cola, while I leave Pepsi, Bread unchecked. Also i choose rom jComboBox that i'm married and born on 1928. I want to append to variable (Append in end) : 1928,Married,1,1,1,1,0,0 Since its very simple, And i'm struggling this, i think its simple quick code, therefore low budget.