CODEWITHSUNDEEP
javacharacter-encodingrandomaccessfile
Mario
Mario

Reputation: 817

Write non english characters using a RandomAccessFile in java

I am trying to write some text to a file using a RandomAccessFile object but the non-english characters are not saved correctly.

Specifically, this sentence --> "und NotenstEnder Libero"

is saved like this --> "und Notenst•nder Libero"

where 'E' character is not english (the ascii code is 917 i think).

The code i am using is this:

file = new RandomAccessFile(path, "rw");
...
file.seek(file.length());
file.writeBytes("The data i want");

How can i avoid this and write the correct text?

(PS: I know about file.writeChars, and i am wondering if there is another way!)

Upvotes: 2

Views: 1006

Answers (3)

Thomas
Thomas

Reputation: 88707

The main problem might be your file encoding. You should use the correct encoding (probably UTF-8) , e.g.:

byte[] b = "The data i want".getBytes("UTF-8");
file.write(b);

Note that if you're using a text viewer/editor to check the file, depending on which one you're using you might have to write a UTF-8 byte order mark at the beginning of the file or tell the viewer/editor to use UTF-8 if it can't figure it out by itself.

Upvotes: 4

erickson
erickson

Reputation: 269707

You mean the Greek letter Ε (GREEK CAPITAL LETTER EPSILON) instead of the Latin letter E (LATIN CAPITAL LETTER E)?

In addition to writeChars(), which would work, there is a writeUTF8() method that will work as well. Instead of writing two bytes per character, it will use a variable number of bytes, depending on the character code.

Files store bytes. Text is a sequence of characters; in Java, a char is two bytes. You have to specify one of many, many methods of translating between characters and bytes. Some methods like UTF-8 handle any character, while many others only handle a specific subset of characters, like Latin or Cyrillic. You have to pick a character encoding and then keep track of what you used so that you can decode the file later.

Upvotes: 1

Mike
Mike

Reputation: 2463

You want your Java code to be UTF-8. If you encode the characters using unicode \unnnn, you can have any unicode characters.

Here's how you would encode your example:

String spanish = "\u00E1\u00E9\u00ED\u00F3\u00FA";
System.out.println(spanish); // prints áéíóú

Upvotes: 0

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