False.
a variable holds a single type of literal. i.e. 1, bat, 345. A object is a instance of a class created by the a programmer with a set of methods which preforms certain task depending what methods have been defined. int a = 4; // a would be the variable Car b = new Car();// b is an object b.carGo();// this is an method in the object car created below. class Car(){ void carGo(){ car moves; } }
A Class. classes are the blueprint for construct objects with the same characteristics and behaviours.
All the objects in Alice that have a set of common set of built-in methods for performing basic options.
A List is an ordered collection of elements. A Set is a collection of unique elements. Sets should be used when you want to store objects without duplicates. Lists should be used any time you need to store an unknown number of objects.
Primitive Operations : enqueue(o) Put object o on the end of the queue. dequeue() Remove and return the object at the front of the queue. head() Reveal the front object in the queue, but do not remove it. size() Return the number of objects currently in the queue. capacity() Return the maximum number of objects the queue can hold. Other operations can be defined in terms of these primitive on es. For example: • isEmpty() can be defined by testing whether size() is 0. • isFull() can be defined by testing whether size() equals the capac- ity(). These last two could also be considered primitive operation s. There is a balance between minimizing the set of primitive operation s, versus providing many convenient operations for users.
A set.
A collected of well defined objects is called a set.
One possibility is a set.
combination
A set is a collection of well-defined and distinct objects.
A grouping of k objects taken from a set of n elements is a combination. It represents the number of ways to choose k items from a pool of n without regard to the order of selection.
One possibility is a set.
a set is defined as a collection of objects. In algebra, it is usually a collection of numbers and often a collection of solutions.
A combination, of k objects from n.
pattern
An arithmetical set is a set of natural numbers which can be defined by a formula of first-order Peano arithmetic.
A set of n objects has 2n combinations. In each combination, each element can either be included or excluded. Two possibilities for each of n objects. One of these combinations will be the empty set - where none of the objects are selected.