Problem in reading from the File

Question

Hi,
I have a dataset.txt file which is as follows:
2
4
1 2 3 4
2 3 4 5
3 4 5 6now that I need the value that is present in the 1st line of the file(ie;2) and value present in the 2nd line of the file(ie;4), upon that i'll be reading the data into an array.
for this task of mine to accomplish , i'm using the following code
String line_1;
String line_2;
          int first_line,second_line;
          DataInputStream dis1 =null;
          DataInputStream dis2 =null;
          System.out.println("Print this");
          try
               File f1=null;
               f1 = new File ("dataset.txt");
               File f2=null;
              f2 = new File ("dataset.txt");
             FileInputStream fis1 = new FileInputStream(f1);
             FileInputStream fis2 = new FileInputStream(f2);
             dis1 = new DataInputStream(fis1);
             dis2 = new DataInputStream(fis2);
                       BufferedReader line1 = new BufferedReader(new InputStreamReader(dis1));
                  line_1=line1.readLine();
                  first_line=Integer.parseInt(line_1);
                  System.out.println("Value of First_line is:     "+first_line);
                  BufferedReader line2 = new BufferedReader(new InputStreamReader(dis2));
                  line_2=line2.readLine();
                  second_line=Integer.parseInt(line_2);
                  System.out.println("Value of Second_line is:     "+second_line);
}//end of try
catch(Exception e)
{e.printStackTrace();}The problem here I'm having is, when i'm printing I'm getting the follow result
Value of First_line is:2
Value of Second_line is:2Instead of printing the value of Second_line as 4, it is printing 2.
Why is this happening?
Any kind of response is appreciated.
Thanks is advance

Answer 1

You dont have to make 2 data stream objects of the file.
To read two lines you can just do with it object
BufferedReader line1 = new BufferedReader(new InputStreamReader(dis1));and just call readLine( ) method twice
line_1=line1.readLine();
line_2=line1.readLine();