
Квиз по Map и Queue в Java

Quiz
•
Computers
•
University
•
Hard
Гулбаршын Утеген
Used 2+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Что такое Map в Java и какие основные методы у него?
Map в Java - это интерфейс, представляющий отображение ключ-значение. Основные методы: put(key, value), get(key), containsKey(key), containsValue(value), remove(key), size().
add(key, value, index)
find(key)
put(value, key)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какие коллекции можно использовать в качестве реализации Map в Java?
ArrayList, LinkedList, HashSet
Vector, Stack, ArrayDeque
PriorityQueue, CopyOnWriteArrayList, ConcurrentHashMap
HashMap, TreeMap, LinkedHashMap
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как добавить элемент в Map в Java?
map.update(key, value)
map.add(key, value)
map.put(key, value)
map.insert(key, value)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как удалить элемент из Map в Java?
containsKey(key)
delete(value)
put(key, value)
remove(key) или clear()
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как получить значение по ключу из Map в Java?
map.value(key)
map.fetch(key)
map.get(key)
map.retrieve(key)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как проверить наличие ключа в Map в Java?
map.containsValue(key)
map.containsKey(key)
map.contains(key)
map.containsEntry(key, value)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как получить все ключи из Map в Java?
map.getKeys()
map.keySet()
map.getAllKeys()
map.retrieveKeys()
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