java16进制高低位转换解析，整数、浮点数转换

红太狼 2022-11-17 05:28 1538阅读 0赞

16进制高低位转换，16进制转10进制整数、浮点数

上代码：

@Test
        public void test5() {
    
            String s = "0x98df000083959341d4df00007152c24110e00000594d8441";
            if (s.startsWith("0x")) {
                s = s.substring(2);
            }
            s = reverseHex(s);
            int i = (s.length()) / 16, k = 0;
            for (int j = i; j > 0; j--) {
                int l = j * 16;
                ++k;
                String d1 = s.substring(l - 8, l);
                String s1 = s.substring(l - 16, l - 8);
                Integer time = Integer.valueOf(d1, 16);
                System.out.println("第" + k + "个16进制整数数转10进制=" + time);
                Float value = Float.intBitsToFloat(Integer.valueOf(s1.trim(), 16));
                System.out.println("第" + k + "个16进制浮点数转10进制=" + value);
            }
            System.out.println(s);
    
        }
    
        /**
          * 16进制高低位转换
          * @param hex
          * @return java.lang.String
          * @author wangguangle
          * @date: 2021/4/8 19:33
          */
        public static String reverseHex(String hex) {
            char[] charArray = hex.toCharArray();
            int length = charArray.length;
            int times = length / 2;
            for (int c1i = 0; c1i < times; c1i += 2) {
                int c2i = c1i + 1;
                char c1 = charArray[c1i];
                char c2 = charArray[c2i];
                int c3i = length - c1i - 2;
                int c4i = length - c1i - 1;
                charArray[c1i] = charArray[c3i];
                charArray[c2i] = charArray[c4i];
                charArray[c3i] = c1;
                charArray[c4i] = c2;
            }
            return new String(charArray);
        }