Java Utililty Methods List First Item

List of utility methods to do List First Item

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Description

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

Method

TfirstUnique(List list)
first Unique 
List<T> temp = new ArrayList<>(list);
for (int i = 0; i < temp.size(); i++) {
    T elem = temp.get(i);
    temp.remove(elem);
    if (!temp.contains(elem)) {
        return elem;
return null;
TfirstValue(List list)
Returns the first value of a list, or null if the list is empty. 
if (list != null && !list.isEmpty()) {
    return list.get(0);
return null;
StringformatEJBQLObjectRangeRestriction(final String fieldName, final Object value1, final Object value2, final String paramName1, final String paramName2, List paramsName, List paramsValue, boolean firstRestriction)
format EJBQL Object Range Restriction 
String result = "";
if (value1 != null && value1.equals(value2)) {
    result = String.format("(%s = :%s)", fieldName, paramName1);
    paramsName.add(paramName1);
    paramsValue.add(value1);
} else if (value1 != null || value2 != null) {
    if (value1 == null) {
        result = String.format("(%s <= :%s)", fieldName, paramName2);
...
StringformatEJBQLObjectRestriction(final String fieldName, final Object value, final String paramName, List paramsName, List paramsValue, boolean firstRestriction)
format EJBQL Object Restriction 
String result = "";
if (value != null) {
    result = String.format("(%s = :%s)", fieldName, paramName);
    paramsName.add(paramName);
    paramsValue.add(value);
    result = generateRestrictionPrefix(result, firstRestriction);
return result;
...
ListgetAllButFirst(List list)
get All But First 
Iterator<T> iterator = list.iterator();
iterator.next();
LinkedList<T> result = new LinkedList<T>();
addAll(result, iterator);
return result;
StringgetDependenciesPrivate(List projects, boolean firstDependencies)
get Dependencies Private 
if (projects.isEmpty()) {
    return "";
StringBuilder builder = new StringBuilder();
if (!firstDependencies) {
    builder.append(",");
builder.append(getCompileTargetName(projects.get(0)));
...
TgetFirst(List c)
get First 
if (c == null || c.size() == 0)
    return null;
return c.get(0);
TgetFirst(List l)
Return the first item of l if it isn't empty, otherwise null. 
return getNoExn(l, 0);
TgetFirst(List list)
get First 
if (isEmpty(list)) {
    return null;
return list.get(0);
TgetFirst(List list)
Returns the first element in a list, or null if there is none. 
return list == null || list.isEmpty() ? null : list.get(0);