Flashcards

Quick study sessions to strengthen memory and retain key concepts.

Flashcard Study

Java: Method.invoke

Front

What are the consequences of breaking encapsulation with reflection?

It can lead to unexpected behavior and security risks. Using setAccessible(true) to access private fields or methods breaks…

View Card →
Flashcard Study

Java: Method.invoke

Front

How does Method.invoke() handle exceptions?

It wraps exceptions in InvocationTargetException. Method.invoke() throws InvocationTargetException if the invoked method throws an exception. This wrapping requires…

View Card →
Flashcard Study

Java: Method.invoke

Front

How does getDeclaredMethods() help in building a framework?

It retrieves all methods of a class, enabling dynamic feature implementation. getDeclaredMethods() returns all methods declared in a…

View Card →
Flashcard Study

Java: Method.invoke

Front

What are the trade-offs of using reflection extensively in a Java application?

It offers flexibility but reduces performance and increases complexity. Reflection provides dynamic functionality, but it can lead to…

View Card →
Flashcard Study

Java: Method.invoke

Front

How can Method.invoke() be used on a private method?

setAccessible(true) must be called first. Frame the concept in practical terms so you can explain it during interview…

View Card →
Flashcard Study

Java: Method.invoke

Front

Why is performance impacted by using Method.invoke()?

Reflection is slower due to dynamic type resolution and security checks. When using Method.invoke(), the JVM performs additional…

View Card →
Flashcard Study

Java: Method.invoke

Front

How does Java's Reflection API bypass type safety?

Reflection allows runtime method invocation without compile-time checks. Java's Reflection API can invoke methods dynamically, bypassing compile-time type…

View Card →
Flashcard Study

Java: Method.invoke

Front

Performance Penalty of Dynamic Execution?

Reflection is slower due to runtime type resolution. The performance penalty of using reflection comes from the need…

View Card →
Flashcard Study

Java: Method.invoke

Front

Dynamic Method Invocation in Practice?

Method.invoke() is used for runtime method execution. By using Method.invoke(), you can execute methods on objects whose classes…

View Card →
Flashcard Study

Java: Method.invoke

Front

Why Use Reflection?

Reflection is used for flexible and dynamic operations. Reflection allows Java programs to manipulate the internal properties of…

View Card →