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Introduction to Java Reflection Java reflection is a powerful feature that allows a program to inspect and manipulate classes, methods, and fields at runtime. This capability is particularly useful for frameworks, libraries, and tools that need to work with classes whose details are not known at compile time. The core of reflection lies in the ...

The Math class in Java provides fundamental mathematical functions and constants. As part of the java.lang package, it requires no explicit import. Key Functionalities: Mathematical constants like PI and E Basic operations: square roots, exponents, absolute values Trigonometric and logarithmic functions Example Usage: double circleRadius = 7. ...

Retrieving Class Objects There are three primary ways to obtain a Class instance at runtime: 1. Class<?> clazz = Class.forName("java.util.ArrayList"); 2. String text = "example"; Class<?> clazz = text.getClass(); 3. Class<?> clazz = Integer.class; // Note the lowercase 'class' Inspecting Class Fields ...