Originally posted by @tshuenhau
| Method name |
Description |
| add(int index, E element) |
Inserts the specified element at the specified position in this list. |
| add(E e) |
Appends the specified element to the end of this list. |
| clear() |
Removes all of the elements from this list. |
| contains(Object o) |
Returns true if this list contains the specified element. |
| get(int index) |
Returns the element at the specified position in this list. |
| indexOf(Object o) |
Returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element. |
| isEmpty() |
Returns true if this list contains no elements. |
| remove(int index) |
Removes the element at the specified position in this list. |
| size() |
Returns the number of elements in this list. |
| Method name |
Description |
| put(YourClass key, YourClass value) |
Adds key to the HashMap with the value value. |
| clear() |
Clears the HashMap. |
| containsKey(Object o) |
Checks if key o is in the HashMap, based off the object’s equals() method |
| containsValue(Object o) |
Checks if value o is in the HashMap, based off the object’s equals() method |
| isEmpty() |
Checks if the HashMap is empty |
| remove(Object o) |
Removes the entry with key o if it is in the HashMap, based off the object’s equals() method |
| size() |
Returns the number of elements in the HashMap |
| entrySet() |
Returns a set of all entries in the HashMap |
| keySet() |
Returns a set of all keys in the HashMap |
| values() |
Returns a collection of all values in the HashMap |
| Method name |
Description |
| test(T t) |
Evaluates this predicate on the given argument. Returns true if the input argument matches the predicate, otherwise false |
| and(Predicate<? super T> other) |
Returns a composed predicate that represents a short-circuiting logical AND of this predicate and another. |
| negate() |
Returns a predicate that represents the logical negation of this predicate. |
| or(Predicate<? super T> other) |
Returns a composed predicate that represents a short-circuiting logical OR of this predicate and another. |
| isEqual(Object targetRef) |
Returns a predicate that tests if two arguments are equal according to Objects.equals(Object, Object). |
| Method name |
Description |
| apply(T t) |
Applies this function to the given argument. |
| compose(Function<? super V,? extends T> before) |
Returns a composed function that first applies the before function to its input, and then applies this function to the result. |
| andThen(Function<? super R,? extends V> after) |
Returns a composed function that first applies this function to its input, and then applies the after function to the result. |
| identity() |
Returns a function that always returns its input argument. |
| Method name |
Description |
| accept(T t) |
Performs this operation on the given argument. |
| andThen(Consumer<? super T> after) |
Returns a composed Consumer that performs, in sequence, this operation followed by the after operation. |
| collect(Collector<? super T,A,R> collector) |
Performs a mutable reduction operation on the elements of this stream using a Collector. |
| filter(Predicate<? super T> predicate) |
Returns a stream consisting of the elements of this stream that match the given predicate. |
| flatMap(Function<? super T,? extends Stream<? extends R>> mapper) |
Returns a stream consisting of the results of replacing each element of this stream with the contents of a mapped stream produced by applying the provided mapping function to each element. |
| iterate(T seed, Predicate<? super T> hasNext, UnaryOperator next)
|
Returns a sequential ordered Stream produced by iterative application of the given next function to an initial element, conditioned on satisfying the given hasNext predicate. |
| Method name |
Description |
| get() |
Gets a result. |