11 - Basic Input/Output and Data File Handling
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Practice Questions
Test your understanding with targeted questions
What does the Scanner class do?
💡 Hint: Think about how you get input in a program.
What is the purpose of System.out.println()?
💡 Hint: Recall how you display output in Java.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What class is commonly used for user input in Java?
💡 Hint: Consider which class we discussed for getting input.
True or False: System.out.print() adds a new line after the output.
💡 Hint: Think about how each method formats output.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Write a Java program that asks the user for their name and age, then writes this information to a file and reads it back.
💡 Hint: Integrate both input classes and manage file I/O properly.
Create a program that reads integers from a file and calculates their sum. Handle exceptions appropriately.
💡 Hint: Don't forget to close the BufferedReader after usage.
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Reference links
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