Java Utililty Methods Bit Value Set

List of utility methods to do Bit Value Set

  1. HOME
  2. Java
  3. B
  4. Bit Value Set

Description

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

Method

Stringbit_marker(String attribute, String type, int maxBits, int bit, boolean on)
bimarker 
if (bit >= maxBits)
    throw new RuntimeException("bit is greater than maxbits");
StringBuilder result = new StringBuilder(attribute.length() + maxBits + type.length() + 2);
StringBuilder bitmarks = new StringBuilder(maxBits + 1);
result.append(attribute).append('_').append(type).append('_');
for (int i = 0; i < maxBits; i++) {
    bitmarks.append('x');
bitmarks.setCharAt(maxBits - bit - 1, on ? '1' : '0');
return result.append(bitmarks).toString();
Stringbit_marker_flexint(String attribute, int bit, boolean on)
bimarkeflexint 
return bit_marker(attribute, FLEXINT_TYPE, FLEXINT_MAXBITS, bit, on);
Stringbit_marker_geohash(String attribute, int bit, boolean on)
bimarkegeohash 
return bit_marker(attribute, GEOHASH_TYPE, GEOHASH_MAXBITS, bit, on);
booleanbitIsSet(byte data, byte bit)
bit Is Set 
return getBitValue(data, bit) != 0;
booleanbitIsSet(int i, int offset)
bit Is Set 
return (i & (1 << offset)) != 0;
booleanbitIsSet(int x, int pos)
Determines whether a particular bit is set in the binary representation of an integer. 
return (x & (1 << pos)) != 0;
booleanbitIsSet(long value, long test)
Checks if bits are set in a value. 
return (value & test) == test;
bytebitSet(byte b, int pos)
bit Set 
return (byte) (b | (1 << pos));
booleanbitSet(int value, int bitmask)
bit Set 
return (value & bitmask) > 0;
longbitSet(long holder, int i, boolean set)
bit Set 
if (i < 0 || i > 63) {
    throw new IllegalArgumentException("i should from 0 inclusive and 64 exclusive");
if (set) {
    return holder | (1 << i);
} else {
    int ii = 1 << i;
    return (holder | ii) ^ ii;
...