Util.java

package main.coding_170409.jvm.util;

/**
 * Created by peter on 2017/4/21.
 */
public class Util {
    public static int byteToInt(byte[] codes) {
        String s1 = byteToHexString(codes);
        return Integer.valueOf(s1, 16).intValue();
    }

    public static String byteToHexString(byte[] codes) {
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < codes.length; i++) {
            byte b = codes[i];
            int value = b & 0xFF;
            String strHex = Integer.toHexString(value);
            if (strHex.length() < 2) {
                strHex = "0" + strHex;
            }
            sb.append(strHex);
        }
        return sb.toString();
    }
}