
Conocimientos Básicos de Java2025
Authored by Profa. Dioris Castillo
Information Technology (IT)
University
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuáles son los tipos de datos primitivos en Java?
text
string
byte, short, int, long, float, double, char, boolean
decimal
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué es un tipo de dato entero en Java?
boolean
Un tipo de dato entero en Java es 'int'.
char
float
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cómo se declara una variable de tipo booleano en Java?
boolean nombreVariable = valorBooleano; (ejemplo: boolean isTrue = true;)
boolean nombreVariable : valorBooleano;
var nombreVariable = valorBooleano;
int nombreVariable = valorBooleano;
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué operador lógico se utiliza para la conjunción en Java?
||
!
&&
&
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué operador lógico se utiliza para la disyunción en Java?
==
!
||
&&
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cómo se concatenan cadenas en Java?
Se concatenan usando el operador '&'
Se concatenan usando el operador '+' o el método concat().
Se concatenan usando el método join()
Se concatenan usando el operador '-'
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué método se utiliza para obtener la longitud de una cadena en Java?
string.size()
string.length()
string.getLength()
string.lengthOf()
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