Reflection API

 Reflection Api allows the developer to inspect and manipulate classes, methods and fields and other components of a Java program at runtime. Additionally developers can instantiate new object, invoke methods, access and modify fields dynamically using Reflection API.

Reflection is used in 

  • Building generic tools that operate on arbitrary types
  • Building frameworks like Object Relational Mapping (ORM), Serialisation, Dependency Injection.
  • Developing, debugging and testing tools that need to modify a programs behaviour at runtime.
While reflection provides powerful capabilities, it should be used judiciously due to its potential performance overhead and complexity.



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