Object reflection is in Java and why it is useful

Object Reflection:is a feature in Java which provides a way to get reflective information about Java classes and objects, such as:1) Getting information about methods and fields present inside the class at run time2) Creating a new instance of a class3) Getting and setting the object fields directly by getting field reference, regardless of
what the access modifier is.import java.lang.reflect.*;

public class Sample {

public static void main(String args[]) {

try {
Class c = Class.forName(“java.sql.Connection”);
Method m[] = c.getDeclaredMethods();
for (int i = 0; i < 3; i++) {
System.out.println(m[i].toString());
}
} catch (Throwable e) {
System.err.println(e);
}
}
}This code’s output is the names of the first 3 methods inside the “java sqlConnection” class
(with fully qualified parameters)Why it is useful:1) Helps in observing or manipulating the runtime behavior of applications.2) Useful while debugging and testing applications, as it allows direct access to methods,
constructors, fields, etc.

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