java中如何将一个充满ASCII的文件转换成一个充满字符的文件

Question

I have a file in which there are ASCII like this: enter image description here Now I want to read this file and convert these ASCII to characters. Finally I need to write these characters into another file. How can I do that in java?

Answer 1

If the target encoding is UTF-8 , there is no point in writing a program; the desired output file is identical to the input file.

It was designed for backward compatibility with ASCII. Code points with lower numerical values, which tend to occur more frequently, are encoded using fewer bytes. The first 128 characters of Unicode, which correspond one-to-one with ASCII, are encoded using a single octet with the same binary value as ASCII, so that valid ASCII text is valid UTF-8-encoded Unicode as well.

Answer 2

Seperate each ASCII and insert each into an array.

You can loop over each char using

Character.toString((char)yourASCIIchar);

This should produce the text representation of the ASCII.