UNIT-4-2

What is the purpose of the java.io package?

• To perform network communications

• To create graphical user interfaces

• To manage database connections

• To handle input and output operations

Which class is used for byte-oriented data input?

• Reader

• OutputStream

• InputStream

• Writer

What does System.out refer to in Java?

• Standard error stream

• Standard output stream

• Standard input stream

• File output stream

Which method is used to read a line of text from the console using BufferedReader?

• read()

• getLine()

• readLine()

• nextLine()

What is the default delimiter used by the Scanner class?

• Tab

• Newline

• Space

• Comma

Which class is used to write text data efficiently to a file?

• PrintStream

• BufferedWriter

• Scanner

• FileReader

What type of stream is System.in?

• FileReader

• InputStream

• PrintStream

• BufferedReader

Which method is used to write a string to a file using FileWriter?

• append()

• write()

• print()

• writeString()

What does the BufferedReader class do?

• Reads binary data

• Reads text data efficiently

• Writes text data

• Parses JSON data

Which class is used to read data from a file in Java?

• OutputStream

• FileWriter

• BufferedWriter

• FileReader