Java Utililty Methods Bit Flip

List of utility methods to do Bit Flip

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Description

The list of methods to do Bit Flip are organized into topic(s).

Method

intflip(int i)
Flips the byte order of an integer 
int result = 0;
result |= (i & 0xFF) << 24;
result |= (i & 0xFF00) << 8;
result |= ((i & 0xFF0000) >> 8) & 0xFF00;
result |= ((i & 0xFF000000) >> 24) & 0xFF;
return result;
intflip(int value)
flip 
return value ^ Integer.MIN_VALUE;
longflip(long a)
A (self-inverse) bijection which converts the ordering on unsigned longs to the ordering on longs, that is, a <= b as unsigned longs if and only if flip(a) <= flip(b) as signed longs. 
return a ^ Long.MIN_VALUE;
intflipBitAsBinaryString(int flipBit)
flip Bit As Binary String 
return 1 << flipBit;
byteflipBitAt(int bitIndex, byte b)
bitIndex from right to left (0 = least significant = rightmost bit) 
return (byte) ((int) b ^ (1 << (bitIndex & 31)));
voidflipBits(byte[] bytes, int start, int bitLength)
flip Bits 
for (int i = 0; i < bitLength / 2; i++) {
    boolean leftBit = getBit(bytes, start * 8 + i);
    boolean rightBit = getBit(bytes, start * 8 + bitLength - i - 1);
    setBit(bytes, start * 8 + i, rightBit);
    setBit(bytes, start * 8 + bitLength - i - 1, leftBit);
intflipBits(int n)
flip Bits 
System.out.println("n = " + Integer.toBinaryString(n));
int mask = 0;
for (int i = 0; i < 31; i++) {
    mask <<= 1;
    if (i % 2 == 0)
        mask |= 1;
System.out.println("mask = " + Integer.toBinaryString(mask));
...
intflipBits(int value)
flip Bits 
return ~value;
longflipC(long v, int off)
Invert bit number "off" in v. 
v ^= (1L << off);
return v;
intFLIPENDIAN_INT32(int x)
FLIPENDIAINT 
return (x << 24) | (x >>> 24) | ((x & 0x0000ff00) << 8) | ((x & 0x00ff0000) >> 8);