- isEmpty
Null-safe check if the specified collection is empty. Null returns true.
- isNotEmpty
Null-safe check if the specified collection is not empty. Null returns false.
- addAll
Adds all elements in the array to the given collection.
- checkIndexBounds
Ensures an index is not negative.
- collate
Merges two sorted Collections, a and b, into a single, sorted List such that the
natural ordering of
- collect
Transforms all elements from the input iterator with the given transformer and
adds them to the outp
- emptyIfNull
Returns an immutable empty collection if the argument is null, or the argument
itself otherwise.
- filter
Filter the collection by applying a Predicate to each element. If the predicate
returns false, remov
- get
Returns the index-th Map.Entry in the map's entrySet, throwing
IndexOutOfBoundsException if there i
- getCardinalityMap
Returns a Map mapping each unique element in the given Collection to an Integer
representing the num
- intersection
Returns a Collection containing the intersection of the given Iterables. The
cardinality of each ele
- isEqualCollection
Returns true iff the given Collections contain exactly the same elements with
exactly the same cardi