reading text file with utf-8 encoding using java

Question

I have problem in reading text file with utf-8 encoding I'm using java with netbeans 7.2.1 platform

I already configured the java project to handle UTF-8 javaproject==>right click==>properties==>source==>UTF-8

but still get the unknown character output: ��

the code:

File fileDirs = new File("C:\\file.txt");

BufferedReader in = new BufferedReader(
new InputStreamReader(new FileInputStream(fileDirs), "UTF-8"));

String str;

while ((str = in.readLine()) != null) {
    System.out.println(str);
}

any other ideas?

thanks

What is the encoding of System.out? What's your system encoding? — Mike Samuel
– Mike Samuel, Commented Feb 17, 2013 at 5:13
thank you all for your comments. I found the solution to the problem.the text file was with ANSI encoding with arabic character. so to solve : BufferedReader in = new BufferedReader( new InputStreamReader(new FileInputStream(fileDirs), "windows-1256"));--thanks all — Abrial
– Abrial, Commented Feb 17, 2013 at 12:40

dj_universe · Accepted Answer · 2016-11-15 09:19:31Z

43

Use

    import java.io.BufferedReader;
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.IOException;
    import java.io.InputStreamReader;
    import java.io.UnsupportedEncodingException;     
    public class test {
    public static void main(String[] args){

    try {
        File fileDir = new File("PATH_TO_FILE");

        BufferedReader in = new BufferedReader(
           new InputStreamReader(new FileInputStream(fileDir), "UTF-8"));

        String str;

        while ((str = in.readLine()) != null) {
            System.out.println(str);
        }

                in.close();
        } 
        catch (UnsupportedEncodingException e) 
        {
            System.out.println(e.getMessage());
        } 
        catch (IOException e) 
        {
            System.out.println(e.getMessage());
        }
        catch (Exception e)
        {
            System.out.println(e.getMessage());
        }
    }
}

You need to put UTF-8 in quotes

edited Nov 15, 2016 at 9:19

dj_universe

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answered Feb 17, 2013 at 6:29

Shobhit Sharma

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1 Comment

tgkprog Over a year ago

Bad practice to put in.close before the catch. Should be in a finally block. Also can use multi catch format in Java 8

jinkal · Accepted Answer · 2015-08-29 18:47:32Z

13

You need to specify the encoding of the InputStreamReader using the Charset parameter.

Charset inputCharset = Charset.forName("ISO-8859-1");
InputStreamReader isr = new InputStreamReader(fis, inputCharset));

This is work for me. i hope to help you.

answered Aug 29, 2015 at 18:47

jinkal

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1 Comment

user3402040 Over a year ago

Lg g3 = work with utf-8 but not ISO-8859-1, and my ASUS = works with ISO-8859-1 but not in utf-8 ...

MoveFast · Accepted Answer · 2013-02-17 05:17:43Z

10

You are reading the file right but the problem seems to be with the default encoding of System.out. Try this to print the UTF-8 string-

PrintStream out = new PrintStream(System.out, true, "UTF-8");
out.println(str);

answered Feb 17, 2013 at 5:17

MoveFast

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Comments

Joshua Joel Cleveland · Accepted Answer · 2018-03-02 14:39:23Z

5

I ran into the same problem every time it finds a special character marks it as ��. to solve this, I tried using the encoding: ISO-8859-1

BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream("txtPath"),"ISO-8859-1"));

while ((line = br.readLine()) != null) {

}

I hope this can help anyone who sees this post.

answered Mar 2, 2018 at 14:39

Joshua Joel Cleveland

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1 Comment

fantaghirocco Over a year ago

There's no ISO-8859-1 encoding set in the code. The encoding is the default

7dr3am7 · Accepted Answer · 2018-11-14 11:49:29Z

4

Ok, I am definitively late to the party but if you are still looking for an optimal solution I would use the following ( for Java 8 )

    Charset inputCharset = Charset.forName("ISO-8859-1");
    Path pathToFile = ....
    try (BufferedReader br = Files.newBufferedReader( pathToFile, inputCharset )) {
        ...
     }

answered Nov 14, 2018 at 11:49

7dr3am7

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