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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the JDBC package used for?
💡 Hint: Think about what classes are included.
Question 2
Easy
Why is it important to close the connection?
💡 Hint: Consider what happens to resources that are not released.
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 method is used to establish a connection in JDBC?
- `getConnection()`
- `createConnection()`
- `initConnection()`
💡 Hint: Think about what the DriverManager class does.
Question 2
True or False: You can skip loading the driver in JDBC after version 4.0.
- True
- False
💡 Hint: Consider how updates might simplify the process.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider a scenario in which your application needs to connect to multiple databases. How would you manage JDBC connections effectively to avoid resource leaks?
💡 Hint: Think about scalability and reusability.
Question 2
Create a simple JDBC program that connects to a MySQL database, retrieves all user data, and displays it. Ensure to handle exceptions and close connections properly.
💡 Hint: Ensure you utilize both `ResultSet` to collect results and close resources at the end.
Challenge and get performance evaluation