
T14-PG-g
Authored by Gaspar Esteban
Computers
Professional Development
Used 28+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué método de la clase Collection en Java se utiliza para verificar si la colección está vacía?
clear()
size()
isEmpty()
add(Object ob)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de los siguientes métodos permite agregar todos los elementos de una colección a otra en Java?
add(Object ob)
addAll(Collection c)
remove(Object ob)
clear()
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué colección en Java permite acceso indexado a sus elementos, similar a los arrays?
HashSet
TreeMap
ArrayList
LinkedList
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué implementación de Set en Java mantiene un orden de inserción?
TreeSet
HashSet
LinkedHashSet
ListSet
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué tipo de colección Java se utiliza para almacenar pares clave-valor?
Set
List
Map
Queue
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué método del objeto Iterator permite verificar si hay más elementos por recorrer?
next()
remove()
hasNext()
reset()
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué método permite eliminar todos los elementos de una colección en Java?
deleteAll()
clear()
removeAll()
empty()
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