The Complete Java Developer Course: From Beginner to Master - File Output

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Information Technology (IT), Architecture
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University
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of writing data to a file in Java?
To reduce memory usage
To enhance data security
To increase the speed of data processing
To make data persistent beyond the program's execution
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which Java package provides the PrintWriter class used for writing data to files?
java.net
java.util
java.io
java.lang
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using a try-catch block when writing data to a file?
To automatically close the file after writing
To optimize file writing speed
To improve code readability
To handle potential file not found exceptions
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method is used to write a line of text to a file using PrintWriter?
println()
printLine()
writeLine()
write()
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the challenge, what data structure is used to store the names before writing them to a file?
TreeSet
ArrayList
HashMap
LinkedList
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the advantage of using an enhanced for loop when writing multiple names to a file?
It automatically sorts the names
It simplifies the code for iterating over the list
It increases the writing speed
It reduces the risk of errors
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should you do if the PrintWriter class is not recognized in your Java program?
Restart the IDE
Import the java.io package
Check for syntax errors
Update the Java version
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