(byte & 0xff)操作

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先看一段代码: @Test public void test(){ byte a = -5; byte b = 12; System.out.println(a); System.out.println(Integer.toHexString(a)); System.out.println(Integer.toHexString(a & 0xff)); System.out.println(b); System.out.println(Integer.toHexString(b)); Syste…

byte & 0xff char 转换

https://blog.csdn.net/lixingtao0520/article/details/75450883 版权声明:本文为博主原创文章,转载请注明作者与出处,http://blog.csdn.net/lixingtao0520 https://blog.csdn.net/lixingtao0520/article/details/75450883 在Java中 byte型数据在内存中占8位,int型数据在内存中占32位.0xff默认为int型,是十六进制,十进制中表示为2…

System.Buffer 以字节数组（Byte[]）操作基元类型数据

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'utf-8' codec can't decode byte 0xff in position 0: invalid start byte

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