Java Utililty Methods List Equal

List of utility methods to do List Equal

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List Equal

Description

The list of methods to do List Equal are organized into topic(s).

Method

boolean areEqual(final List list1, final List list2)
Returns whether lists are equal or not.

if (list1 == null && list2 == null) {
 return true;
} else if ((list1 == null || list2 == null) && list1 != list2) {
 return false;
} else {
 if (list1.size() != list2.size()) {
 return false;
 } else {
...

boolean areEqual(List a, List b)
are Equal

if (a == b) {
 return true;
if (a == null || b == null) {
 return false;
if (a.size() != b.size()) {
 return false;
...

boolean areEqual(List list1, List list2)
are Equal

if (list1 == null)
 return list2 == null;
if (list2 == null)
 return false;
int size = list1.size();
if (size != list2.size()) {
 return false;
for (int i = 0; i < size; i++) {
 if (list1.get(i) != list2.get(i)) {
 if (list1.get(i) == null || list2.get(i) == null) {
 return false;
 } else if (!list1.get(i).equals(list2.get(i))) {
 return false;
return true;

boolean areEqualConsideringOrder(List listA, List listB)
are Equal Considering Order

return !areDifferentConsideringOrder(listA, listB);

boolean equal(List coll, List otherColl)
equal

if (coll == null && otherColl == null)
 return true;
if (coll == null && otherColl != null && otherColl.size() < 1)
 return true;
if (coll != null && coll.size() < 1 && otherColl == null)
 return true;
if (coll != null && coll.size() > 0 && otherColl == null)
 return false;
...

boolean equal(List objects)
equals for a list of objects

int size = objects.size();
if (size < 2) {
 return true;
Object object = objects.get(0);
for (int i = 1; i < size; i++) {
 if (!objects.get(i).equals(object)) {
 return false;
...

boolean equal(List v1, List v2)
equal

return !v1.retainAll(v2);

boolean equalLists(List a, List b)
equal Lists

return (a == null && b == null) || a.equals(b);

boolean equalLists(List aV1, List aV2)
compares two List instances.

if ((aV1 == null) && (aV2 == null)) {
 return true;
else if ((aV1 != null) && (aV2 != null)) {
 if (aV1.size() != aV2.size()) {
 return false;
 Iterator v1Iter = aV1.iterator();
...

boolean equalLists(List list1, List list2)
equal Lists

return (list1.containsAll(list2) && list2.containsAll(list1));