Java Utililty Methods Number Swap

List of utility methods to do Number Swap

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Description

The list of methods to do Number Swap are organized into topic(s).

Method

doubleswapDouble(double value)
Converts a "double" value between endian systems. 
return Double.longBitsToDouble(swapLong(Double.doubleToLongBits(value)));
floatswapFloat(float floatValue)
Byte-swaps the given float to the other endian. 
return Float.intBitsToFloat(swapInteger(Float.floatToRawIntBits(floatValue)));
floatswapFloat(float value)
Reverses the byte order of the source float value 
int i = Float.floatToIntBits(value);
i = swapInteger(i);
return Float.intBitsToFloat(i);
intswapInt(int i)
Converts an "int" value between endian systems. 
return ((i & 0xFF) << 24) | ((i & 0xFF00) << 8) | ((i & 0xFF0000) >> 8) | ((i >> 24) & 0xFF);
intswapInt(int i)
swap Int 
int a = i % 256;
int b = i / 256;
return a * 256 + b;
intswapInteger(int integer)
Byte-swaps the given integer to the other endian. 
int swapped = 0, byte1, byte2, byte3, byte4;
byte1 = (integer >> 0) & 0xff;
byte2 = (integer >> 8) & 0xff;
byte3 = (integer >> 16) & 0xff;
byte4 = (integer >> 24) & 0xff;
swapped = byte1 << 24 | byte2 << 16 | byte3 << 8 | byte4 << 0;
return swapped;
longswapLong(long value)
Reverses the byte order of the source long value 
return ((value & 0xFF00000000000000L) >> 56) | ((value & 0x00FF000000000000L) >> 40)
        | ((value & 0x0000FF0000000000L) >> 24) | ((value & 0x000000FF00000000L) >> 8)
        | ((value & 0x00000000FF000000L) << 8) | ((value & 0x0000000000FF0000L) << 24)
        | ((value & 0x000000000000FF00L) << 40) | ((value & 0x00000000000000FFL) << 56);
longswapLong(long value)
Converts a "long" value between endian systems. 
return (((value >> 0) & 0xff) << 56) | (((value >> 8) & 0xff) << 48) | (((value >> 16) & 0xff) << 40)
        | (((value >> 24) & 0xff) << 32) | (((value >> 32) & 0xff) << 24) | (((value >> 40) & 0xff) << 16)
        | (((value >> 48) & 0xff) << 8) | (((value >> 56) & 0xff) << 0);
longswapLong(long value)
Converts a "long" value between endian systems. 
return (((value >> 0) & 0xff) << 56) + (((value >> 8) & 0xff) << 48) + (((value >> 16) & 0xff) << 40)
        + (((value >> 24) & 0xff) << 32) + (((value >> 32) & 0xff) << 24) + (((value >> 40) & 0xff) << 16)
        + (((value >> 48) & 0xff) << 8) + (((value >> 56) & 0xff) << 0);
shortswapShort(final short value)
Converts a "short" value between endian systems. 
final int result = (((value >> 0) & INT_LOW_BYTE_MASK) << BIT_SIZE_OF_BYTE)
        + (((value >> BIT_SIZE_OF_BYTE) & INT_LOW_BYTE_MASK) << 0);
return (short) result;