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File I/O

Computer Science · Java

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About this practice set

File I/O is part of Computer Science (Java). Questions are generated with new numbers each time you practise. Levels available: Easy. After you answer, an explanation is shown.

Example questions

A taste of what you will practise. Answers are revealed after you try.

  • Easy

    Which class reads a text file line by line?

    • BufferedReader
    • ArrayList
    • Scanner
    • Math