如何在java中解码数组中的十六进制代码

从user获取s值后,附加以下代码。Imp:请使用上面指出的camelCase约定来命名变量。为了方便你,我刚才用了和你相同的名字。

    if (s>= 0 && s < data.length) {
            String decodeinput = data[s].trim();

            StringBuilder decodeoutput = new StringBuilder();

            for (int i = 2; i < decodeinput.length() - 1; i += 4) {
                // Extract the hex values in pairs
                String temp = decodeinput.substring(i, (i + 2));
                // convert hex to decimal equivalent and then convert it to character
                decodeoutput.append((char) Integer.parseInt(temp, 16));
            }
            System.out.println("ASCII equivalent : " + decodeoutput.toString());
     }

或者,完成你正在做的事情:

/*      import java.io.UnsupportedEncodingException;
        import org.apache.commons.codec.DecoderException;
        import org.apache.commons.codec.binary.Hex; //present in commons-codec-1.7.jar
*/
        if (s>= 0 && s < data.length)  {
            String hexString =data[s].trim();
            hexString = hexString.replace("\\x", "");
            byte[] bytes;
            try {
                bytes = Hex.decodeHex(hexString.toCharArray());
                System.out.println("ASCII equivalent : " + new String(bytes, "UTF-8"));
            } catch (DecoderException e) {
                e.printStackTrace();
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
        }