Which stream class is used to write formatted text to a file in Java?Question 13Answera.PrintWriterb.FileWriterc.FileOutputStreamd.BufferedWriter
Question
Which stream class is used to write formatted text to a file in Java?
Question 13
Answer
a. PrintWriter
b. FileWriter
c. FileOutputStream
d. BufferedWriter
Solution
Break Down the Problem
- Identify the types of classes available in Java for writing to files.
- Determine which class is specifically used for writing formatted text.
Relevant Concepts
- Java provides various classes for file operations, including
PrintWriter
,FileWriter
,FileOutputStream
, andBufferedWriter
. PrintWriter
is designed for writing formatted representations of objects to a text-output stream.
Analysis and Detail
- PrintWriter: This class is used to write formatted text to a file. It provides various methods for printing different data types and can handle character encoding.
- FileWriter: This class writes character files. It does not provide formatting capabilities.
- FileOutputStream: It is used for writing raw byte streams but does not support character data directly.
- BufferedWriter: This class is used to write text to a character-output stream, buffered for efficiency, but formatting functions are managed through concatenation rather than direct formatting.
Verify and Summarize
Among the options:
PrintWriter
is the class that supports formatted output to files. WhileBufferedWriter
can be used withPrintWriter
for buffering,PrintWriter
itself directly supports formatted output.
Final Answer
The correct answer is a. PrintWriter.
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