newbie needs example of info extraction and insertion on text files

[icantcodewell]

hi,

im just starting out and could use an example of a java program that searches one file (file_a.txt) for strings (string_x) and (string_y) then will write the strings (x, y) out to a new file (file_b.txt).

i figure that if i can see it done i will better be able to understand how it works. any help would be appriciated, thanks.

 

[sedj]

Have a look at these links :

http://java.sun.com/docs/books/tutorial/essential/io/datasinks.html

http://java.sun.com/docs/books/tutorial/essential/io/filestreams.html

You want a BufferedReader, then read each line into a String, use the String.indexOf() method, or a regex pattern matcher to check each line.

--------------------------------------------------
Free Database Connection Pooling Software

http://www.primrose.org.uk

 

[sedj]

Oh, and normally core Java API questions should be post in forum269 .

--------------------------------------------------
Free Database Connection Pooling Software

http://www.primrose.org.uk