Java将字符串打印为Unicode

Question

I was processing some data tweeter using java. I read them from the file, do some process and print to the stdout .
The text in file looks like this:

"RT @Bollogosta319a: #BuyBookSilentSinners \☯Gain Followers\\n\☯RT This\\n\☯MUST FOLLOW ME I FOLLOW BACK\\n\☯Follow everyone who rts\\n\☯Gain\\n #ANDROID \…"

I read it in, and print it out to stdout. The output is supposed to be:

"RT @Bollogosta319a: #BuyBookSilentSinners ☯Gain Followers\\n☯RT This\\n☯MUST FOLLOW ME I FOLLOW BACK\\n☯Follow everyone who rts\\n☯Gain\\n #ANDROID …"

But my output is like this:

"RT @Bollogosta319a: #BuyBookSilentSinners ?Gain Followers ?RT This ?MUST FOLLOW ME I FOLLOW BACK ?Follow everyone who rts ?Gain #ANDROID ?"

So, it seems that I have two problems to deal with:
1. print the exact Unicode character instead of Unicode string
2. keep "\\n" as it is, instead of a newline in the output.

How can I do this? (I'm really crazy about dealing with different coding in Java)

Answer 1

I don't know how you are parsing the file, but the method you are using seems to be interpreting escape codes (like \\n and \☯ ). To leave instances of \\n in the file literally, you could replace \\n with \\\\n prior to using whatever means of interpreting the escape codes. The \\\\ will be converted to a single \\ , and the n will be left alone. Have you tried using a plain java.io.FileReader to read the file? That may be simpler.

The Unicode symbols may actually be read correctly; many terminals do not support the full range of Unicode characters and print some symbol in place of those it does not understand. Perhaps your program prints ☯ and the terminal simply doesn't know how to render it, so it prints a ? instead.