Java Utililty Methods Array Hash Code

List of utility methods to do Array Hash Code

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Description

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

Method

intarrayHashCode(Object array[])
Calling hashCode on an array does not go into the items in the array, as would be done for a List. 
int result = 0;
if (array != null) {
    for (int i = 0; i < array.length; i++) {
        Object obj = array[i];
        result += obj.hashCode();
return result;
...
intarrayHashCode(Object[] arr)
array Hash Code 
int hash = 0;
if (arr != null) {
    hash ^= arr.getClass().hashCode();
    for (int i = 0; i < arr.length; ++i) {
        hash ^= arr[i] == null ? 0 : arr[i].hashCode();
return hash;
...
intarrayHashCode(Object[] arr)
Compute hash code of array. 
int c = 0;
int len = arr.length;
for (int i = 0; i < len; i++) {
    Object o = arr[i];
    int v = o == null ? 1 : o.hashCode();
    c += (v ^ i);
return c;
...
intarrayHashCode(Object[] objects)
array Hash Code 
int hc = 0;
if (objects != null) {
    for (int i = 0; i < objects.length; i++) {
        hc += (objects[i] != null ? (objects[i].hashCode() * 31) : 0);
return hc;
intbyteArrayHashCode(final byte[] array)
Obtain the hashcode of a byte array. 
return Arrays.hashCode(array);
intcalculateHash(byte[] data)
calculate Hash 
return Arrays.hashCode(data);
intdeepHash(Object[] t)
deep Hash 
return Arrays.deepHashCode(t);
intdeepHashCode(double[][] matrix)
Computes hashCode of a given matrix 
int retVal = 0;
for (int i = 0; i < matrix.length; i++) {
    retVal += Arrays.hashCode(matrix[i]);
return retVal;
inthashCode(byte[] bytes)
This function calculates a hash code for the specified byte array. 
int hash = Arrays.hashCode(bytes);
return hash;
inthashCode(byte[] obj)
hash Code 
if (obj == null)
    return 0;
return Arrays.hashCode(obj);