Web Reference: Sep 1, 2008 · Java's static typing system isn't really designed to support this unless the object conforms to a known interface, but using reflection, your code can look at the object and find out if it has a method called 'doSomething' and then call it if you want to. Mar 14, 2026 · Reflection in Java allows a program to inspect and manipulate classes, methods, fields, and constructors at runtime, even when their details are unknown at compile time. In this tutorial, we will explore Java reflection, which allows us to inspect and/or modify runtime attributes of classes, interfaces, fields and methods. This particularly comes in handy when we don’t know their names at compile time. Additionally, we can instantiate new objects, invoke methods and get or set field values using reflection.
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