Java Programming · all questions

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Q1

Which class is used to read data from the keyboard in Java?

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Q2

What is the purpose of the `System.out.println()` method in Java?

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Q3

Which method is used to write data to a file in Java?

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Q4

How can you close a file after reading or writing in Java?

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Q5

What is the purpose of the `FileInputStream` class in Java?

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Q6

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

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Q7

What is the purpose of the `BufferedReader` class in Java?

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Q8

Which method is used to read a line of text from the keyboard in Java?

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Q9

In Java, what does the `FileOutputStream` class do?

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Q10

What is the purpose of the `PrintWriter` class in Java?

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Q11

Which class is used to write binary data to a file in Java?

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Q12

In Java, which method is used to write binary data to a file?

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Q13

What is the purpose of the `FileWriter` class in Java?

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Q14

Which class is used to write formatted text to a file in Java?

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Q15

In Java, what is the primary purpose of the `DataInputStream` class?

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Q16

In Java, what does the `DataOutputStream` class do?

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Q17

Which class is used to write primitive data types to an output stream in Java?

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Q18

What is the purpose of the `RandomAccessFile` class in Java?

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Q19

In Java, which class is used to read and write character streams?

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Q20

What is the primary purpose of the `File` class in Java?

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