Java POO3 ba

Java POO3 ba

12th Grade

10 Qs

quiz-placeholder

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Java POO3 ba

Java POO3 ba

Assessment

Quiz

Computers

12th Grade

Practice Problem

Medium

Created by

Paola Tovar

Used 2+ times

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿ Cómo se define un conjunto de constantes con nombre?

const

final

static

enum

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Qué clase se utiliza para leer datos de la entrada estándar?

BufferedReader

InputStreamReader

Scanner

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Qué clase se utiliza para representar una fecha y hora específicas?

Date

Calendar

LocalTime

Instant

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Cómo se declara una lista que puede almacenar matrices de enteros?

 

int[][] listaMatrices = new int[n][m];

List listaMatrices = new ArrayList<int[]>();

int[] listaMatrices = new int[n];

List<int[]> listaMatrices;

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Qué método se utiliza para insertar un elemento en una lista enlazada?

add(T element)

insert(int index, T element)

set(int index, T element)

append(T element)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Qué método se utiliza para obtener el valor asociado a una clave específica en un mapa hash?

put(Object key, T value)

get(Object key)

containsKey(Object key)

entrySet()

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Qué método se utiliza para verificar si un elemento existe en un conjunto hash?

add(Object element)

contains(Object element)

remove(Object element)

isEmpty()

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