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Problem: In game development, you often need to create various types of characters with different attributes and behaviors. For example, warriors may have different characteristics and attack behaviors compared to mages. The problem is how to create these diverse character types in a structured and maintainable manner without tightly coupling the code to specific character…

Problem: In a web application, multiple parts of the application may need to access the database concurrently. Creating a new database connection every time one is needed can be resource-intensive and slow. Managing a limited number of database connections and allowing multiple parts of the application to share and reuse them efficiently is essential for improving performance and resource…