The java.lang.Object.getClass () method returns the runtime class of an object. In this tutorial, we'll learn about four ways to retrieve a class's name from methods on the These methods can be confusing because of their similar names and their somewhat vague Javadocs. There are several ways to get a Class depending on whether the code has access to an object, the name of class, a type, or an existing Class.

© Copyright 2011-2018 www.javatpoint.com. We'll see what that means for different primitive and object types.Let's start with primitive types, as they are simple. All rights reserved. Following is the declaration for java.lang.Class.getName() method. Their behavior is generally the same: In most cases, this is a qualified name which contains all the class packages simple names as well as the class simple name:What we've seen in the previous section is the general behavior of these method calls, but there are a few exceptions.Then each call denotes the inner class in a slightly different way:As we've already seen they have no simple name, but Let's illustrate this with an example. Object.getClass() If an instance of an object is available, then the simplest way to get its Class is to invoke Object.getClass() . Become a writer on the site, in the Java, Computer Science, Scala, Linux, and Kotlin areas. Return Value

The index starts at 0. We'll now see how these methods work with object types. They also have some nuances when it comes to primitive types, object types, inner or anonymous classes, and arrays. The getName() method of java Class class is used to get the name of the entity, and that entity can be class, interface, array, enum, method, etc.

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The HTMLCollection object represents a collection of nodes.

java get Object class name. Focus on the new OAuth2 stack in Spring Security 5 Mail us on hr@javatpoint.com, to get more information about given services.

Now it's time to have a look at how we would obtain a class's name, type name, or canonical name. Note how the first call uses a dollar instead of a dot to separate the inner class part from the rest of the name.On the other hand, when called on an object array it will In this article, we looked at four methods to access a class name in Java. Developed by JavaTpoint. These methods can be confusing because of their similar names and their somewhat vague Javadocs. However it is better to follow some agreed rules as otherwise other people who view your code may call you and your work "unprofessional" without even looking in how well have you implemented the algorithm. of the class object. Theoretically, you can call the class by any name that is supported by the language itself. In this tutorial, we'll learn about four ways to retrieve a class's name from methods on the Class API: getSimpleName(), getName(), getTypeName() and getCanonicalName(). These methods are: We learned that the first just returns the source code name of a class while the others provide more information such as package name and an indication of whether the class is inner or an anonymous class.We use cookies to improve your experience with the site. They also have some nuances when it comes to primitive types, object types, inner or anonymous classes, and arrays.We can also get primitive types and arrays simple names. To find out more, you can read the full

NA. The following example uses a Class object to print the class name of an object: void printClassName(Object obj) { System.out.println("The class of " + obj + " is " + obj.getClass().getName()); } It is also possible to get the Class object for a named type (or for void) using a class literal.

In our example java program we have created a class RoseIndia and we have created an object of this class.


The canonical reference for building a production grade API with Spring. That Class object is the object that is locked by static synchronized methods of the represented class. THE unique Spring Security education if you’re working with Java today.

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Now we will be calling method getClass() … of the class object.JavaTpoint offers too many high quality services. The java.lang.Class.getName() returns the name of the entity (class, interface, array class, primitive type, or void) represented by this Class object, as a String.

Then by calling the method getName() we can get the name of the object class. In java there is a way that makes us enabled to get the object class name at runtime. Declaration. For primitive types that will simply be their names, like Finally, there is the specific case of anonymous classes. The getElementsByClassName () method returns a collection of all elements in the document with the specified class name, as an HTMLCollection object. The nodes can be accessed by index numbers. Element Type Encoding Surprisingly, even students that are about to finish university do not always name Java … JavaTpoint offers college campus training on Core Java, Advance Java, .Net, Android, Hadoop, PHP, Web Technology and Python. public String getName() Parameters. We'll create here two anonymous classes and call We should note that the second call returns a name with an increased number at its end, as it's applied on the second anonymous class.Finally, let's see how arrays are handled by the above three methods.To indicate we're dealing with arrays, each method will update its standard result. It can be done by calling the getClass() method on the class object. Unlike As for the other methods, the output can differ a little bit according to the use cases. The getName() method of java Class class is used to get the name of the entity, and that entity can be class, interface, array, enum, method, etc.