import java.io.File;
import java.io.BufferedReader;
import java.io.FileReader;
import java.util.StringTokenizer;
 
public class readCSV {
    public static void main(String args[]) {
        try{
            File file = new File("c:/java/Number of Requests per Device.csv");
            BufferedReader bufRdr  = new BufferedReader(new FileReader(file));
 
            String line = null;
            int monthNumber = 0;
            int deviceName = 0;
            int activeUsers = 0;
 
            String vals[][][] = new String[100][100][100];
 
            //read each line of text file
            while((line = bufRdr.readLine()) != null)
            {    
                StringTokenizer st = new StringTokenizer(line,",");
 
                while (st.hasMoreTokens())
                {
                    //get next token and store it in the array
                    vals[monthNumber][deviceName][activeUsers] = st.nextToken();
                    System.out.println(vals[monthNumber][deviceName][activeUsers]);
                }
 
                /*
                deviceName=0;
                activeUsers=0;
                monthNumber++;
                System.out.println(vals[monthNumber][0][0]);
                */
            }
            //System.out.println(vals[monthNumber][0][0]);
        }catch(Exception e){
            System.out.println("Exception Fired is:" + e);
        }
    }
}

import java.util.*;
 
  public class set1 {
    public static void main(String args[])
    {
      Set hs = new HashSet();
      hs.add("1");
      hs.add("2");
      hs.add("2");
      hs.add("3");
 
      Iterator iter = hs.iterator();
      while (iter.hasNext())
        System.out.println(iter.next());
    }
  }

class Phone
{
    string blah;
    string blah2;
    string blah3;
}