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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What package would you use to work with lists?
💡 Hint: Think of the utility classes for data storage.
Question 2
Easy
Which package is automatically imported by default?
💡 Hint: This package contains fundamental classes.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
Which of the following packages is used for network programming?
- java.util
- java.io
- java.net
- java.lang
💡 Hint: Recall the purpose of the package related to networking.
Question 2
True or False: The java.lang package is automatically imported.
- True
- False
💡 Hint: Consider what is always available in Java.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Write a Java program that uses the java.util.HashMap to store and display the names and ages of three people.
💡 Hint: Think about how key-value pairs work.
Question 2
Explain how to handle file reading using java.io package by creating a simple program that reads data from a text file.
💡 Hint: Recall how to create a stream to read from files.
Challenge and get performance evaluation