java - Creating an ArrayList from data in a text file -

i trying write program uses 2 classes find total $ amount text file of retail transactions. first class must read file, , second class must perform calculations. problem having in first class, arraylist seems price of last item in file. here input (which in text file):

$69.99 3 shoes

$79.99 1 pants

$17.99 1 belt

and here first class:

class readinputfile { static arraylist<double> pricearray = new arraylist<>(); static arraylist<double> quantityarray = new arraylist<>();  static string  pricesubstring = new string(); static string quantitysubstring = new string();  public void gatherdata () {  string s = "c:\\filepath";    try {         filereader inputfile = new filereader(s);        bufferedreader bufferreader = new bufferedreader(inputfile);        string line;        string substring = " ";        while ((line = bufferreader.readline()) != null)         substring = line.substring(1, line.lastindexof(" ") + 1);         pricesubstring = substring.substring(0,substring.indexof(" "));        quantitysubstring = substring.substring(substring.indexof(" ") + 1 , substring.lastindexof(" ") );         double price = double.parsedouble(pricesubstring);       double quantity = double.parsedouble(quantitysubstring);        pricearray.add(price);       quantityarray.add(quantity);        system.out.println(pricearray);   } catch (ioexception e) {      e.printstacktrace(); } } 

the output , value of pricearray [17.99], desired output [69.99,79.99,17.99].

not sure problem is, in advance help!

basically have is:

while ((line = bufferreader.readline()) != null) {     substring = line.substring(1, line.lastindexof(" ") + 1); }  pricesubstring = substring.substring(0,substring.indexof(" "));  quantitysubstring = substring.substring(substring.indexof(" ") + 1 , substring.lastindexof(" ") );   double price = double.parsedouble(pricesubstring); double quantity = double.parsedouble(quantitysubstring);  pricearray.add(price); quantityarray.add(quantity);  system.out.println(pricearray); 

so doing creating substring of line read, reading next line, basically, substring of last processed remaining code.

wrap code in {...} want executed on each iteration of loop

for example...

while ((line = bufferreader.readline()) != null) {     substring = line.substring(1, line.lastindexof(" ") + 1);     pricesubstring = substring.substring(0,substring.indexof(" "));      quantitysubstring = substring.substring(substring.indexof(" ") + 1 , substring.lastindexof(" ") );      double price = double.parsedouble(pricesubstring);     double quantity = double.parsedouble(quantitysubstring);      pricearray.add(price);     quantityarray.add(quantity);      system.out.println(pricearray); } 

this execute code within {...} block each line of file