Java Utililty Methods Byte Array to Long

List of utility methods to do Byte Array to Long

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Description

The list of methods to do Byte Array to Long are organized into topic(s).

Method

long[]byte2long(final byte[] v)
Convert byte array to long array. 
long result[] = new long[v.length];
for (int i = 0; i < result.length; i++)
    result[i] = v[i];
return result;
longbytes2long(byte[] b)
to long. 
return bytes2long(b, 0);
longbytes2long(byte[] byteArray, int offset)
Convert an array of 8 bytes in a 64 bit long value in little endian order 
return (((long) byteArray[offset] & 0xFF) | (((long) byteArray[offset + 1] & 0xFF) << 8)
        | (((long) byteArray[offset + 2] & 0xFF) << 16) | (((long) byteArray[offset + 3] & 0xFF) << 24)
        | (((long) byteArray[offset + 4] & 0xFF) << 32) | (((long) byteArray[offset + 5] & 0xFF) << 40)
        | (((long) byteArray[offset + 6] & 0xFF) << 48) | (((long) byteArray[offset + 7] & 0xFF) << 56));
longbytes2long(byte[] bytes)
byteslong 
long num = 0;
for (int i = 0; i < 8; i++) {
    num <<= 8;
    num |= (bytes[i] & 0xff);
return num;
longbytes2long(byte[] bytes)
byteslong 
long num = 0L;
num = (((long) ((bytes[0] & 0xFF)) << 56) | ((long) ((bytes[1] & 0xFF)) << 48)
        | ((long) ((bytes[2] & 0xFF)) << 40) | ((long) ((bytes[3] & 0xFF)) << 32)
        | ((long) ((bytes[4] & 0xFF)) << 24) | ((long) ((bytes[5] & 0xFF)) << 16)
        | ((long) ((bytes[6] & 0xFF)) << 8) | ((long) ((bytes[7] & 0xFF))));
return num;
longbytes2Long(byte[] bytes)
bytes to long 
if (bytes == null) {
    return 0;
if (bytes.length != 8) {
    throw new IllegalArgumentException("Expecting 8 byte values to construct a long");
long value = 0;
for (int i = 0; i < 8; i++) {
...
longbytes2Long(byte[] bytes)
convert bytes to long. 
long num = 0;
for (int ix = 0; ix < bytes.length; ++ix) {
    num <<= 8;
    num |= (bytes[ix] & 0xff);
return num;
longbytes2long(byte[] bytes)
byteslong 
return bytes2long(bytes, 0);
longbytes2Long(byte[] bytes)
bytes Long 
return bytes2Long(bytes, 0);
longbytes2long(byte[] bytes, boolean bigEndian)
byteslong 
return bytes2long(bytes, 0, bigEndian);