Thread: Read a data from a text file and create an object from these data in this text file

What have you tried?

try {
InputStream fis = new FileInputStream("person.txt");
Scanner scanner = new Scanner(fis);
while (scanner.hasNextLine()) {
String line = scanner.nextLine();
String[] pieces = line.split(" ");
if(pieces == line.split("m ")){
create man obj.
}
if(pieces == line.split("g ")){
create girl obj.
}
}
scanner.close();
} catch (Exception e) {
System.out.println("There has been some error.");
}

like this but if not correctly and my think is not correct..

i couldn't find how can i do...

Please use the code tags (see my signature for instructions) - I've edited your post to use them.

I'd suggest you read the following 2 links:
1) Lesson: Classes and Objects (The Java™ Tutorials > Learning the Java Language)
2) http://www.javaprogrammingforums.com...html#post18725

My question how can i read the data from a text file?

Really? I honestly didn't know what the question was, and was addressing your "create man obj" notes in the source code you posted - seems to me your code reads the file just fine, unless there are errors or exceptions that you did not post. Perhaps you need to state your question more specifically (see How To Ask Questions The Smart Way )

I think I understand your question...consider the following

String line = "m 25 68";
String[] pieces = line.split(" ");
///pieces is an array, pieces [0] is "m", pieces [1] is "25", etc...

Just use the appropriate index of the array to check if it is an "m" or "g". If you don't understand arrays, see Arrays (The Java™ Tutorials > Learning the Java Language > Language Basics)