用java实现打印汉字的Unicode和GBK编码一览表
import java.io.File;import java.io.FileWriter;import java.io.IOException;import java.io.UnsupportedEncodingException;public class ChineseCharEncodingList{private static final int MIN_INDEX = 19968;private static final int MAX_INDEX = 40869;private static final String CR = "\r\n";private static final String TAB = "\t";public void execute(String fileName) throws IOException{ File f = new File(fileName); FileWriter fw = new FileWriter(f); fw.write("字符"+TAB+"Unicode十进制"+TAB+"Unicode十六进制"+TAB+TAB+"GBK十进制"+TAB+"GBK十六进制"+CR); fw.write("=================================================================================="+CR); int GBKCode; for(int i=MIN_INDEX;i<=MAX_INDEX;i++){ GBKCode = getGBKCode(i); fw.write((char)i+TAB+i+TAB+TAB+Integer.toHexString(i)+TAB+TAB+TAB+GBKCode+TAB+TAB+Integer.toHexString(GBKCode)+CR); } fw.flush(); System.out.println("Done!");}private int getGBKCode(int unicodeCode) throws UnsupportedEncodingException{ char c = (char) unicodeCode; byte[] bytes = (c+"").getBytes("GBK"); return ((bytes[0]&255)<<8) + (bytes[1]&255);}public static void main(String[] args) throws Exception{ new ChineseCharEncodingList().execute("汉字编码一览表.txt");}}

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