
Tema 11
Quiz
•
Computers
•
Professional Development
•
Practice Problem
•
Medium
Alfonso López
Used 2+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Los ficheros binarios se diferencian de los de texto en que:
Solo tienen ceros y unos
Sirven tanto para escribir como para leer
No sirven para guardar texto
Permiten guardar todo tipo de datos, incluidos datos primitivo y objetos
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si queremos guardar una cadena de caracteres en un flujo binario de tipo ObjectOutputStream, usaremos:
writeString()
writeChar()
writeObject()
Nada, no se puede
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Para guardar un array del tipo int[] en un fichero binario de tipo ObjectOutputStream, usaremos:
writeInt()
writeArrayInt()
readObject()
writeObject()
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si queremos leer un array de Cadenas de caracteres del flujo binario entrada de tipo ObjectInputStream, escribiremos:
String[] tabla = (String[])entrada.readObject();
String tabla = (String)entrada.readObject();
String[] tabla = entrada.readObject();
String[] tabla = (Object).readObject();
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un flujo de tipo ObjectInputStream permite leer de:
Cualquier archivo de windows
Archivos de imagen con extensión JPG
Archivos creados con un flujo ObjectOutputStream
Archivos creados con un flujo BufferedReader
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un flujo de tipo ObjectInputStream permite acceder a:
Solo archivos del disco duro
Cualquier fuente de datos primitivos u objetos de Java
Únicamente a conexiones de red
Solo nos permite leer de la consola
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si guardamos una cadena de caracteres usando un flujo ObjectOutputStream, podemos leerla directamente del archivo:
Usando un procesador de texto
Usando un editor de texto
Usando una hoja de cálculo
Usando un flujo ObjectInputStream
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