我必须为家庭作业编写这段代码,但我甚至不知道从哪里开始。这是我必须编写的方法的javadoc。
/**
* Sets a 4-bit nibble in an int
* Ints are made of eight bytes, numbered like so: 7777 6666 5555 4444 3333 2222 1111 0000
*
* For a graphical representation of this:
* 1 1 1 1 1 1
* 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* |Nibble3|Nibble2|Nibble1|Nibble0|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*
* Examples:
* setNibble(0xAAA5, 0x1, 0) //=> 0xAAA1
* setNibble(0x56B2, 0xF, 3) //=> 0xF6B2
*
* @param num int that will be modified
* @param nibble nibble to insert into the integer
* @param which determines which nibble gets modified - 0 for least significant nibble
*
* @return the modified int
*/
这就是我所拥有的。我已经让它与javadoc中的第一个例子一起工作,但我知道这并不适用于所有情况。特别是当int为!= 0;
public static int setNibble(int num, int nibble, int which)
{
int newNibble = (num >> 4);
newNibble = (newNibble << 4) | nibble;
return newNibble;
}
我是否应该轮班使用?我被告知我可以在一行代码中执行此方法。 感谢先进的帮助!
答案 0 :(得分:5)
我建议你;
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