Question

Can we separate the List of only names from the data from file system as

Name    Age Sex Address
dani    21  Male    US
ron     34  Male    NY
stella  23  Female  NY
steave  43  Male    US  
[End]

I have tried to set the Delimiters as’\t’ in above data while inserting into file.
I tried

try 
{
fin = openFileInput("FileSystemDatabase.dat");
isr = new InputStreamReader(fin);
br = new BufferedReader(new InputStreamReader(fin));
while ((line = br.readLine()) != null) 
    {
           if (line.equals("\rName\tAge\tSex\tAddress\n"))
                 break;
    }
Pattern p = Pattern.compile("\r\n\\d\t");
while ((line = br.readLine()) != null) 
    {
           if (line.equals("[End]"))
                   break; 
           Matcher m = p.matcher(line);
           if (m.matches()) 
           {
                   text =m.group(1);
                   tv=new TextView(this);
                   tv.setText(text);

           }
    }
}
catch (Exception e)
{
    e.printStackTrace();
}

But i am not getting the correct result to get correct List.Is there is any simple way to get it?
Please help me..

Answer 1

Try this.. You will get only the names:

     while ((line = br.readLine()) != null && (line.equals("Name\t\tAge\tSex\tAddress\n"))) {
            Log.e("String ", "" + line);
            break;
        }

        while ((line = br.readLine()) != null) {
            if (line.equals("[End]"))
                break;
            splitString = line.split(" ");
            Log.e("Name ", "" + splitString[0]);
        }

Output:

06-28 11:30:08.009: E/String(3713): dani 21 Male US

06-28 11:30:08.009: E/Name(3713): dani

06-28 11:30:08.009: E/String(3713): ron 34 Male NY

06-28 11:30:08.009: E/Name(3713): ron

06-28 11:30:08.009: E/String(3713): stella 23 Female NY

06-28 11:30:08.009: E/Name(3713): stella

06-28 11:30:08.009: E/String(3713): steave 43 Male US

06-28 11:30:08.009: E/Name(3713): steave