Java Reflection API

Inspect and invoke classes, methods, and fields at runtime.

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Reflection is an API used to examine or modify the runtime behavior of applications. It can inspect class names, invoke private methods, and read annotations dynamically.

Key Takeaways: Java Reflection API

Mastering Java Reflection API helps you write clean and reliable Java code. Follow standard conventions, test edge cases, and keep logic simple. Try running the code example below and complete the exercises to build confidence.

Java Reflection API Code Example

Java

public class Main {
    public static void main(String[] args) {
        Class<?> strClass = "Hello".getClass();
        System.out.println("Class Name: " + strClass.getName());
        System.out.println("Is Interface: " + strClass.isInterface());
    }
}

Output

Class Name: java.lang.String
Is Interface: false

Run this example on your own computer. The "Get Started" lesson shows how to set it up.

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Java Sealed Classes

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Java Singleton and Factory Patterns

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Java Reflection API

💡 Key Takeaways: Java Reflection API

Java Reflection API Code Example

Key Takeaways: Java Reflection API