Read/write bytes in unicode

Question

I have the next piece of code:
String encryptionText = "\u4f45\ueb33\ua4ea\ufcd0\u9e52\u6faf\udcd8\u4aa6";
File inputText, outputText;
outputText = new File("outputCod.txt");
FileInputStream fin;
FileOutputStream fout;
String key, text;
byte[] bufText, bufKey;
fout = new FileOutputStream(outputText);
fout.write(encryptionText.getBytes("UTF-8"));
fout.close();
inputText = new File("outputCod.txt");
fin = new FileInputStream(inputText);
bufText = null;
bufText = new byte [(int)inputText.length()];
fin.read(bufText);
fin.close();
text = new String (bufText, "UTF-8");
At the end i want to have in text the same thing as in encryptionText. But I dont. In encrytionText I have "\u4f45\ueb33\ua4ea\ufcd0\u9e52\u6faf\udcd8\u4aa6" and in text I have "\u4f45\ueb33\ua4ea\ufcd0\u9e52\u6faf?\udcd8\u4aa6". Any idea where that "?" comes from? encryptionText.getBytes("UTF-8") and bufText have the same content in the end.

Answer 1

just_me_n wrote:
why are they not valid? aren't all valid? \u0000 to \uffff? it;s not quite binary i need to put intro string...i need to put into string any kind of \uxxxx.No, they are not all valid (in particular, the surrogate pair range is treated differently). You should not be putting binary data into a string, only character data.