Now that you're generally acquainted with reflection as a theoretical concept, let's proceed to its practical application! We won't learn all of the Reflection API's methods-just the ones that you'll actually encounter in practice. It's hard to imagine that Java, as a platform, could have achieved such widespread adoption without reflection. Reflection is used in almost all modern Java technologies. Get and set values of an object's fields by name.Create an instance of a class whose class name is unknown until run time.Find out what methods belong to implemented interface(s).Get information about a class's modifiers, fields, methods, constants, constructors, and superclasses Java reflection tutorial with examples Dictionary meaning of reflection: The throwing back by a body or surface of light, heat, or sound without absorbing it.Here is a basic list of what reflection allows: This example is relatively compact however the printMembers() method is slightly awkward due to the fact that the interface has existed since the earliest implementations of reflection and it could not be modified to include the more useful getGenericString() method when generics were introduced. You can literally juggle classes and their components. In other words, an understanding how reflection works in Java will open up a number of amazing opportunities for you. Reflection and a logically consistent model for issuing error information make it possible to create correct dynamic code.
Reflection lets you work with types that weren't present at compile time, but which became available during run time. Reflection lets you explore information about fields, methods, and class constructors. Reflection ( from late Latin reflexio - to turn back) is a mechanism to explore data about a program while it is running. There is a short, accurate, and popular definition on the Internet. In Java, reflection is implemented using the Java Reflection API.
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