Java FAQ: Top Questions

Reflection in Java allows inspection and modification of classes, methods, fields, and constructors at runtime, provided by the java.lang.reflect package.

• Capabilities: Access private members, invoke methods, create instances dynamically.
• Classes: Class , Method , Field , Constructor .
• Performance: Slower than direct access due to runtime checks.
• Risks: Breaks encapsulation, may cause security issues.
• Use Case: Frameworks (e.g., Spring), testing tools, debuggers.