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

inthashCode(final Object[] array1)
hash Code 
if (array1 == null) {
    return 0;
return Arrays.hashCode(array1);
inthashCode(Map a)
Implements hashCode for map of string arrays The map of string arrays does't work with hashCode. 
int hash = 0;
for (Map.Entry<String, String[]> entry : a.entrySet())
    hash += Arrays.hashCode(entry.getValue());
return hash;
inthashCode(Object array)
Hashes an array. 
int hashCode;
if (array == null) {
    hashCode = 0;
} else if (array instanceof byte[]) {
    hashCode = Arrays.hashCode((byte[]) array);
} else if (array instanceof short[]) {
    hashCode = Arrays.hashCode((short[]) array);
} else if (array instanceof int[]) {
...
inthashCode(Object array)
Computes a hash code for the given array based on its content instead of on its identity. 
Class<?> arrayType = array.getClass();
if (!arrayType.isArray()) {
    throw new IllegalArgumentException("specified object is not an array");
Class<?> componentType = arrayType.getComponentType();
if (componentType.isPrimitive()) {
    if (componentType == boolean.class) {
        return Arrays.hashCode((boolean[]) array);
...
inthashCode(String[] names, Object[] values)
Computes a descriptor hashcode from its names and values. 
int hash = 0;
for (int i = 0; i < names.length; i++) {
    Object v = values[i];
    int h;
    if (v == null) {
        h = 0;
    } else if (v instanceof Object[]) {
        h = Arrays.deepHashCode((Object[]) v);
...
StringprintArray(byte[] array, boolean withHash)
print Array 
if (array == null)
    return "null";
int limit = 8;
StringBuilder sb = new StringBuilder();
sb.append("[B0x");
if (array.length <= limit || IS_ARRAYS_DEBUG) {
    sb.append(toHexString(array));
    if (withHash) {
...