get Data from text file in java

Asked May 02 '16 at 13:45

Active May 02 '16 at 14:47

Viewed 154 times

I have text file a.txt and I want to a methode like public String[] getdata(String filename,int nbrLine){} that I give two parameters the name of the file (a.txt) and the number of the line that I want to put in String[].

I have text file a.txt

1,2,3,5,0
7,2,3,5,4,7
9,2
1,0,0,2`

I try something like

public String LoadDataB(String inFile) {
     String tContents = "";
     try {
         InputStream stream = getAssets().open(inFile);
         byte[] buffer = new byte[stream.available()];
         stream.read(buffer);
         stream.close();
         return new String(buffer);
     } catch (IOException e) {
         return tContents;
     }
 }

But how can I complete it?

edited May 02 '16 at 14:47

mnille

1,328
4
16
20

asked May 02 '16 at 13:45

ali

but i want to get a specific line – ali May 02 '16 at 13:59
if you want only one line why do you ask for `String[] getdata(String filename,int nbrLine)` which returns string **array**? – user3114639 May 02 '16 at 14:02
I think the first answer there can help you. It says "Then, you can use in.readLine(); to read a single line at a time." – Bö macht Blau May 02 '16 at 14:02
for example in my txt fil a have – ali May 02 '16 at 14:04
look at the linked question. if you want a specific line skip the rest. – radai May 02 '16 at 14:05
if i give the nbrline is 3 i want String array content [1,0,0,2] . – ali May 02 '16 at 14:05
but where i should put the number of the line that i want – ali May 02 '16 at 14:08
you maintain a line counter, you ++ it every line you read, when you get to the one you want (counter == arg) you return it. – radai May 02 '16 at 14:09
can you give me a example – ali May 02 '16 at 14:10
http://stackoverflow.com/questions/14217997/java-how-to-use-bufferedreader-to-read-specific-line – radai May 02 '16 at 14:12
i try it but doesnt work – ali May 02 '16 at 14:35

get Data from text file in java

0 Answers0