What is reflection and what is its use in Java?

Asked by Last Modified  

7 Answers

Learn Java

Follow 0
Answer

Please enter your answer

Tutor

Its generally meant for redefining the definition of objected oriented features in more depth to intensify its object oriented design.
Comments

Tutor

to inspect classes, interfaces, fields and methods at runtime, without knowing the names of the classes, methods etc. at compile time
Comments

Talent with Professional Experience

Reflection is meant to load class at runtime without making it's object
Comments

Senior Software Engineer

The name reflection is used to describe code which is able to inspect other code in the same system (or itself). For example, say you have an object of an unknown type in Java, and you would like to call a 'doSomething' method on it if one exists. Java's static typing system isn't really designed...
read more
The name reflection is used to describe code which is able to inspect other code in the same system (or itself). For example, say you have an object of an unknown type in Java, and you would like to call a 'doSomething' method on it if one exists. 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. read less
Comments

Trainer

Java Reflection makes it possible to inspect classes, interfaces, fields and methods at runtime, without knowing the names of the classes, methods etc. at compile time. It is also possible to instantiate new objects, invoke methods and get/set field values using reflection
Comments

Reflection is an API in java , you can say reflection API is like mirror. using reflection api you can get all the information of class . For example : you can find how many methods/annotation available in particular class.and their name, argument . ..etc..
Comments

Trainer

Java Reflection is a process of examining or modifying the run time behavior of a class at run time. The java.lang.Class class provides many methods that can be used to get metadata, examine and change the run time behavior of a class. The java.lang and java.lang.reflect packages provide classes...
read more
Java Reflection is a process of examining or modifying the run time behavior of a class at run time. The java.lang.Class class provides many methods that can be used to get metadata, examine and change the run time behavior of a class. The java.lang and java.lang.reflect packages provide classes for java reflection. Where it is used The Reflection API is mainly used in: IDE (Integrated Development Environment) e.g. Eclipse, MyEclipse, NetBeans etc. Debugger Test Tools etc. read less
Comments

View 5 more Answers

Related Questions

What exactly the work of constructor( default, parameterized) especially about instance variables initialization. Suppose user initialize the instance variables explicitly. Then what is the use of parameterized constructor over here.. Please reply me
Constructor is used to initialize an object at the time of creation. A default constructor is provided by the compiler itself if no constructor is provided by the user. It initializes the state of the...
Profile Photo
Surekha
What's Java's most used IDE?
As per Dzone's recent survey, The Eclipse IDE remains the most popular place for Java developers to primarily write their code, though it saw a 7% decrease from last year’s survey results (50% in 2016...
Profile Photo
Ritu
0 0
View Comments7
What's New in JDK 8 ?
1.Lamda Expressions I started with lambda expressions as this is probably the most sought after feature in the language after probably Generics/Annotations in Java 5. 2.Generic Type changes and improvements Taking...
Profile Photo
Ashish
what is the use of request get parameter map in servlet with example
Map of all input elements of form of Html can be retrieved with getParameterMap() method and it is very rarely used. Map requestParams = request.getParameterMap();
Profile Photo
Pushpendra

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Constructor Overloading
public class ConstructorOverloading { public ConstructorOverloading(){ System.out.println("default"); } public ConstructorOverloading(String a){ System.out.println("a"); } public ConstructorOverloading(int...
S

Sarthak C.

0 0
View Comments0

1.1. Reverse an array in Java.
public class Main { public static void main(String args) { int arr = {1, 2, 3, 4, 5}; for (int i = 0; i < arr.length / 2; i++) { int temp = arr; arr = arr; arr = temp; } System.out.println(Arrays.toString(arr)); }}
Profile Photo

TestNG Annotations and its sequence
public class TestNGAnnotations { @BeforeMethod public void beforeM() { System.out.println("Before Method"); } @AfterMethod public void afterMethod() { System.out.println("After Method"); } @BeforeClass...
S

Sarthak C.

0 0
View Comments0

2.1. Reverse a singly linked list.
class Node { int data; Node next; Node(int data) { this.data = data; this.next = null; }} public class LinkedList { Node head; public void reverse() { Node prev = null; Node curr = head; Node next =...
Profile Photo

Spring - Dependency Injection (DI)
Spring - Dependency Injection (DI) DI is a framework which provides loose coupling in code. Here loose coupling means no hard coding of the object. Instead of hard coding, we will be injecting these object...
Profile Photo

Recommended Articles

Designed in a flexible and user-friendly demeanor, Java is the most commonly used programming language for the creation of web applications and platform. It allows developers to “write once, run anywhere” (WORA). It is general-purpose, a high-level programming language developed by Sun Microsystem. Initially known as an...

Read full article >

Java is the most famous programming language till date. 20 years is a big time for any programming language to survive and gain strength. Java has been proved to be one of the most reliable programming languages for networked computers. source:techcentral.com Java was developed to pertain over the Internet. Over...

Read full article >

Java is the most commonly used popular programming language for the creation of web applications and platform today. Integrated Cloud Applications and Platform Services Oracle says, “Java developers worldwide has over 9 million and runs approximately 3 billion mobile phones”.  Right from its first implication as java 1.0...

Read full article >

Before we start on the importance of learning JavaScript, let’s start with a short introduction on the topic. JavaScript is the most popular programming language in the world, precisely it is the language - for Computers, the Web, Servers, Smart Phone, Laptops, Mobiles, Tablets and more. And if you are a beginner or planning...

Read full article >

Looking for Java Training Classes?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you