Java: 将指定的某一bit位 置0、置1、取反

将指定的某一个比特位置0、置1、取反:

/**
     * Set the specified bit to 1
     *
     * @param originByte Raw byte value
     * @param bitIndex   bit index (From 0~7)
     * @return Final byte value
     */
    public static byte setSpecifiedBitTo1(byte originByte, int bitIndex) {
        return originByte |= (1 << bitIndex);
    }

    /**
     * Set the specified bit to 0
     *
     * @param originByte Raw byte value
     * @param bitIndex   bit index (From 0~7)
     * @return Final byte value
     */
    public static byte setSpecifiedBitTo0(byte originByte, int bitIndex) {
        return originByte &= ~(1 << bitIndex);
    }

    /**
     * Invert the specified bit
     *
     * @param originByte Raw byte value
     * @param bitIndex   bit index (From 0~7)
     * @return Final byte value
     */
    public static byte setSpecifiedBitToReverse(byte originByte, int bitIndex) {
        return originByte ^= (1 << bitIndex);
    }

    /**
     * Get the value of the specified bit
     *
     * @param originByte Raw byte value
     * @param bitIndex   bit index (From 0~7)
     * @return Final byte value
     */
    public static byte getSpecifiedBitValue(byte originByte, int bitIndex) {
        return (byte) ((originByte) >> (bitIndex) & 1);
    }
原文地址:https://www.cnblogs.com/yongdaimi/p/13214479.html