Answer 1

At first you should store your data in the text file.And write this code.

FileReader fr = null;
fr = new FileReader("Your File location");
BufferedReader br = new BufferedReader(fr);
itemsFound = new ArrayList();
Int data = null;
data = br.readLine();
Int[] arr = data;

int i;
for(i=0,i<arr.length,i++){
System.out.println(arr[i]);
}

Now You have your data in an Array of Integer.
I use Buffer Reader method.
Your Data are int an Array "arr".