Key Concepts in HashMaps and SQLite Databases in Java
HashMaps in Java
- Understanding the HashMap data structure in Java.
- Key-value pairs, hashing, and principles of HashMap.
HashMap Operations
- Performing basic operations on HashMaps: insertion, retrieval, and deletion.
- Iterating through keys and values in a HashMap.
HashMap API
- Exploring the HashMap class methods and functionalities in the Java API.
- Practical use cases and examples.
Handling Collisions
- Dealing with collisions in HashMaps and strategies for resolution.
- Collision resolution techniques: chaining and open addressing.
Performance Considerations
- Analyzing the time complexity of HashMap operations.
- Choosing appropriate initial capacity and load factor for optimal performance.
SQLite Database in Java
- Introduction to SQLite as a lightweight relational database management system.
- Setting up and connecting to an SQLite database in Java.
JDBC (Java Database Connectivity)
- Utilizing JDBC for database operations in Java.
- Establishing connections, executing queries, and handling results.
Creating and Managing Tables
- Designing and creating tables in an SQLite database.
- Defining data types, constraints, and relationships.
CRUD Operations
- Implementing CRUD (Create, Read, Update, Delete) operations with SQLite in Java.
- Translating Java objects to database records and vice versa.
Prepared Statements
- Using prepared statements for efficient and secure database operations.
- Preventing SQL injection vulnerabilities.
Transactions
- Understanding database transactions and their role in ensuring data integrity.
- Implementing atomic operations and rollback mechanisms.
Querying the Database
- Writing SQL queries to retrieve specific data from the database.
- Utilizing SELECT statements with conditions and joins.
Connection Pooling
- Implementing connection pooling for efficient database connections.
- Enhancing performance and scalability in database operations.
Error Handling and Exception Management
- Handling database-related errors and exceptions in Java.
- Implementing robust error-handling strategies.
Best Practices and Optimization
- Adhering to best practices for efficient HashMap and SQLite database usage.
- Optimizing queries and data access for better performance.
Make sure to adapt these concepts based on your specific project requirements and use cases.