How can I read only one thing in from a textfile?

Question

I can read in from the file and am able to change the amount of lines given by changing the number in the for loop but I don\'t want all the numbers in my file displayed side by

Answer 1

I think what you want to print is

String randomString = lines.get(r.nextInt(2));
System.out.println(randomString);

To display only the first 20 random lines from this list of maybe 100

for (int i = 0; i < 20; i++) {

   int rowNum = r.nextInt(lines.size ());
   System.out.println(lines.get(rowNum);
}