Java Utililty Methods Hash Code Calculate

List of utility methods to do Hash Code Calculate

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Description

The list of methods to do Hash Code Calculate are organized into topic(s).

Method

inthashCode(final int i)
Computes the hash code for an integer. 
return i;
inthashCode(final int seed, final int hashcode)
hash Code 
return seed * HASH_OFFSET + hashcode;
inthashCode(final int x, final int y)
Returns an integer hash code for a point. 
final int hashX = ((Integer) x).hashCode();
final int hashY = ((Integer) y).hashCode();
return 31 * hashX + hashY;
inthashcode(final int[] array)
Computes a hashcode for an integer array, partially unrolled. 
final int len = array.length;
int result = 23;
int i = 0;
for (; (i + 3) < len; i += 4) {
    result = (1874161 * result) + 
            (50653 * array[i]) + 
            (1369 * array[i + 1]) + 
            (37 * array[i + 2]) + array[i + 3];
...
inthashCode(final long l)
hash Code 
return (int) (l ^ (l >>> 32));
inthashCode(final long l)
hash Code 
return (int) (l ^ (l >>> 32));
inthashCode(final long v)
Return a hashcode for a long. 
return (int) (v ^ (v >>> 32));
inthashCode(final Object obj)
Calculate hashcode of objects. 
if (obj == null) {
    return 0;
if (obj.getClass().isArray()) {
    Object[] array = (Object[]) obj;
    int result = 17;
    for (int i = 0; i < array.length; i++) {
        result = result * 37 + hashCode(array[i]);
...
inthashCode(final Object obj)
hash Code 
return (obj == null ? 0 : obj.hashCode());
inthashCode(final Object object)
Returns a hash code for an object, or zero if the object is null. 
int result = 0;
if (object != null) {
    result = object.hashCode();
return result;