包含中文字符到ASCII的字符串

Question

This is my code, both of the two ways give the same output.

String description = "test string with 音樂";
byte[] b = description.getBytes("US-ASCII");

//first way
char[] result = new char[b.length];       
for ( int i = 0; i < b.length; i++ ) {
    result[i] = (char)b[i];
}
System.out.println(new String(result)); //output - test string with ??

//second way
System.out.println(new String(b, "UTF-8")); //output - test string with ??

I am using Eclipse and changed console output encoding to US-ASCII under Run Configuration

Is it possible to get it as US-ASCII encoding string?

Thanks adv!!!

Answer 1

It's not possible to convert it to US-ASCII but,

If you just want Unicode escaped string then you can use apache common lang utility,

import org.apache.commons.lang.StringEscapeUtils;

...
StringEscapeUtils.unescapeJava("test string with \u97F3\u6A02"); 
 //gives result : test string with 音樂
StringEscapeUtils.escapeJava("test string with 音樂"); 
 //gives result : test string with \u97F3\u6A02

Answer 2

It is not possible to convert Chinese characters to US-ASCII because they are not contained in this character set.

US-ASCII knows only 128 different characters and some of them are even non-printing control characters.