InputStreamReader

[abalfazl hossein]

in= new InputStreamReader(new FileInputStream("mytext.txt"),"UTF8");

I want to read mytext.txt line by line, As string, Without using any buffer class or buffer array. How to do that?

[Rob Spoor]

What is the indication for a new line? If you can answer that question, simply read the characters until you reach that indication.

[Campbell Ritchie]

Use a FileReader rather than an input stream for a text file.

[Rob Spoor]

I disagree. FileReader uses the system encoding; this is the proper way to read from a file using a specific encoding, in this case UTF8.

In fact, FileReader extends InputStreamReader; its constructors each call super(new FileInputStream(arg)) where arg is the argument to the constructor.

[Campbell Ritchie]

Agree: Rob is right.

[Campbell Ritchie]

. . . but I don't think it's "UTF8". I think it's "UTF-8", but you would have to check carefully, maybe here.

[Rob Spoor]

In Java you can use both for charsets. One is an alias for the other, but I can't remember which way around it is.

[Kurosaki Ichigo]

i am not sure why, but why can't you use the Scanner?

Scanner sc = new Scanner ( new File("....." ) );
....
while (sc.hasNext() ){
    line = sc.nextLine();
    System.out.println(line);
}
sc.close();

[Campbell Ritchie]

Rob Prime wrote:In Java you can use both for charsets. One is an alias for the other, but I can't remember which way around it is.

Thank you. Wasn't certain about that. I think the official name is UTF-8, so UTF8 would be the alias.