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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the purpose of closing JDBC resources?
💡 Hint: Think about resource management.
Question 2
Easy
What does try-with-resources do in Java?
💡 Hint: It simplifies resource management.
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
What does the try-with-resources statement do?
- A. It allows multiple resource allocations
- B. It automatically closes resources
- C. It enhances query performance
💡 Hint: Consider what happens to resources after leaving a block.
Question 2
True or False: PreparedStatement can help prevent SQL injection.
- True
- False
💡 Hint: Think about the security features of PreparedStatement.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You are developing a Java application that interfaces with a sales database. Describe how you would implement connection pooling and PreparedStatement to enhance performance and security. What potential issues could arise if you do not follow these best practices?
💡 Hint: Consider both security and performance aspects.
Question 2
You have an application that currently uses hardcoded SQL queries. Create a refactored version of one of these queries using PreparedStatement, and explain the benefits of this change.
💡 Hint: Think about how the new change will affect code readability and safety.
Challenge and get performance evaluation