Develop Reference

Unzip files that contain chinese characters

I have a zip file.It contains some files.Files contain chinese characters so I used
ZipInputStream zipStream = new ZipInputStream(
new BufferedInputStream(new FileInputStream(zipFilePath), BUFFER_SIZE),
Charset.forName("ISO-8859-1")
);
......
FileOutputStream fileOutput = new FileOutputStream(uncompressedFileName);
while (zipStream.available() > 0) {
fileOutput.write(zipStream.read());
}
Extraction runs succesfully.After that I want to use encodingDetect method to find encoding but now service is not running.It returns nomatch. If I send files directly to service,The service is running.It find charset properly like UTF-8.
I guess that Charset.forName("ISO-8859-1")extract files but format is corrupted.Do you have any idea?

The problem is the Charset of the file names in the zip. UTF-8 raises an error (the file names are evidently not in UTF-8), as UTF-8 requires as special format for the multi-byte sequences, and evidently there are wrong "multibyte" sequences.
ISO-8859-1 is a single byte enconding, accepting garbage.
What you should do is to try the small number of Chinese Charsets, so the file name strings are filled correctly. Java String contains Unicode, so can hold any Charset. The help from someone talking Chinese probably would make sense.
And then try writing files with those names. If not successful on your PC, you must use artificial file names, maybe transliteration from Chinese.
A translation table from original Chinese file name to actual file name may be created
as UTF-8 text file, maybe with a BOM, '\uFEFF` at the begin-of-file.

ISO-8859-1 charset most definitely does not support Chinese language. Use UTF-8 instead of ISO-8859-1

How to set encoding for bundle?

I use properties for i18n. If I specify non-English locale:
ResourceBundle messages = ResourceBundle.getBundle("i18n/Messages", new Locale("tr", "TR"));
I see the message with wrong encoding:
ÐÑивеÑ!
How to set the correct encoding?

Problem: By default ISO 8859-1 character encoding is used for reading content of properties file, so if the file contains any character beyond ISO 8859-1 then it will not be processed properly.
First solution:
Process the properties file to have content with ISO 8859-1 character encoding by using native2ascii - Native-to-ASCII Converter
What native2ascii does: It converts all the non-ISO 8859-1 character in their equivalent \uXXXX. This is a good tool because you need not to search the \uXXXX equivalent of special character.
Usage for UTF-8: native2ascii -encoding utf8 e:\a.txt e:\b.txt
If you use Eclipse then you will notice that it implicitly converts the special character into \uXXXX equivalent. Try copying
会意字 / 會意字
into a properties file opened in Eclipse.
Second solution: Create a custom ResourceBundle.Control class which can be used with ResourceBundle to read properties in any given encoding scheme. You may want to use an already created and shared CustomResourceBundleControl.
Use it as below:
ResourceBundle messages = ResourceBundle.getBundle("i18n/Messages", new CustomResourceBundleControl("UTF-8"));

How will append a utf-8 string to a properties file

How will append a utf-8 string to a properties file. I have given the code below.
public static void addNewAppIdToRootFiles() {
Properties properties = new Properties();
try {
FileInputStream fin = new FileInputStream("C:\Users\sarika.sukumaran\Desktop\root\root.properties");
properties.load(new InputStreamReader(fin, Charset.forName("UTF-8")));
String propertyStr = new String(("قسيمات").getBytes("iso-8859-1"), "UTF-8");
BufferedWriter bw = new BufferedWriter(new FileWriter(directoryPath + rootFiles, true));
bw.write(propertyStr);
bw.newLine();
bw.flush();
bw.close();
fin.close();
} catch (Exception e) {
System.out.println("Exception : " + e);
}
}
But when I open the file, the string I have written "قسيمات" to the file shows as "??????". Please help me.

OK, your first mistake is getBytes("iso-8859-1"). You should not do these manipulations at all. If you want to write unicode text to file you should open the file and write text. The internal representations of strings in java is unicdoe, so everything will be writter correctly.
You have to care about charset when you are reading file. BTW you do it correctly.
But you do not have to use file manipulation tools to append something to properites file. You can just call prop.setProperty("yourkey", "yourvalue") and then call prop.store(new FileOutputStream(youfilename)).

Ok, I have checked the specification for Properties class. If you use following methods: load() for input stream or store() for output stream, the input/output stream for the file is assumed a iso-8859-1 encoding by default. Therefore, you have to be cautious with a few things:
Some characters in French, German and Portuguese are iso-8859-1 (Latin1) compatible, which they normally work fine in iso-8859-1. So, you don't have to worry that much. But, others like Arabic and Hebrew characters are not Latin1 compatible, so you need to be careful with the choice of encoding for these characters. If you have a mix of characters of French and Arabic, you have no choice but to use Unicode.
What is your current input file's encoding if it already exists to be used with Properties's load() method? If it is not the default iso-8859-1, then you need to figure out what it is first before opening the file. If infile file encoding is UTF-8, then use properties.load(new InputStreamReader(new FileInputStream("infile"), "UTF8"))); Then, stick to this encoding till the end. Match the file encoding with the character encoding as well.
If it is a new input file to be used with Properties's load() method, choose the file encoding that works with your character's encoding. Then, stick to this encoding till the end.
Your expected output file's encoding shall be the same with what is used from Properties's load() method before you use the store() method. If it is not the default iso-8859-1, then you need to figure out what it is first before saving the file. Stick to this encoding till the end. Match the file encoding with the character encoding as well. If outfile file encoding is UTF-8, then specifically use UTF-8 encoding when saving the file. But, if the store() method still ends up with an outfile in iso-8859-1 encoding, then you need to do what is suggested next...
If you stick to the default iso-8859-1, it works fine for characters like French. But, if the characters are not iso-8859-1 or Latin1 encoding compatible, you need to use Unicode escape characters instead as an alternative: for example:\uFE94 for the Arabic ﺔ character. For me, this escaping is too tedious and normally we use native2ascii utility provided in JRE or JDK to convert a properties file from one encoding to another encoding. Of course, there are other ways...just check the references below...For me, it is better to use a properties file in XML format since by default it is UTF-8...
References:
Java properties UTF-8 encoding in Eclipse
Setting the default Java character encoding?

Spanish character óé display error in Java properties

When I process a properties file with the Spanish characters ó and é, characters are displayed as ?. I tried different ways to fix this, but still fail:
I tried to use \uxxxx
I tried to use InputStreamReader with encoding UTF-8
I tried to convert string to bytes and then create a new String from those bytes:
new String( val.getBytes("UTF-8"), "UTF-8")
Nothing worked. What should I do next to fix this issue? Japanese and Russian are still OK.

The properties file needs to be in the proper encoding. By default some IDE's like eclipse saves the content using CP1252 but you are requiring the file as UTF-8. This is also required for your java code.
If you try to use \uxxxx characters but your application by default is working with CP1252 the conversion of the escape code result in a bad character.
If you use the InputStreamReader to force the reading as UTF-8 but your code and/or your file are not using UTF-8 support result in a bad character.
If you use UTF-8 conversion of an string but your source code is CP1252 you should have the same problem.
Related previous answer about source code : Should source code be saved in UTF-8 format
Notepad ++ Has a menu to view the format of the file and change it in "Format" menu you should view the file as if it should be opened by other formarts or you should convert the file to other file formats like "UTF-8"

UTF-8Characters not displayed correctly in

we are working on a project for school, The project is mandatory tri-lingual (dutch, english and french) , so the answer "Change to English will not do".
All our classes and resource files are encoded in UTF-8 format, and alle non-standar english characters are diplayed correctly in the classes themself.
the problem is that once we try to display our text, alle non-standard english characters are distorted.
We hear alot that this is due to an encoding issue, but I sincerly doubt that, since our whole project is encode in UTF-8.
here is extract from the french resource bundle:
VIDEOSETTINGS = Réglages du Vidéo
SOUNDSETTINGS = Réglages du son
KEYBINDSETTINGS = Keybind Paramètres
LANGUAGESETTINGS = Paramètres de langue
DIFFICULTYSETTINGS = Paramètres de Difficulté
EXITSETTINGS = Sortie les paramètres
and this results in these following displayed strings.
display result for provided resourcebundle extract
I would be most gratefull for a solution for this problem
EDIT
for extra info we are building a desktop app using Swing.

This is due to an encoding issue.
You are using the wrong decoder (probably ISO-8859-1) on UTF-8 encoded bytes.
Are these strings stored in a file? How are you loading the file? Via the Properties class? The Properties class always applies ISO-8859-1 decoding when loading the plain text format from an InputStream. If you are using Properties, use the load(Reader) overload, switch to the XML format, or re-write the file with the matching encoding. Also, if you are using Resource.getBundle() to load a properties file, you must use ISO-8859-1 encoding to write that file, escaping any non-Latin characters.
Since this is an encoding issue, it would be most helpful if you posted the code you have used to select the character encoding.

You didn't show some code, where you read the resource files. But if you use PropertyResourceBundle with an InputStream in the constructor, the InputStream must be encoded in ISO-8859-1. In that case, characters that cannot be represented in ISO-8859-1 encoding must be represented by Unicode Escapes.
You can use native2ascii or AnyEdit as tools to convert Properties to unicode escapes,
see Use cyrillic .properties file in eclipse project