Literally, an object in programming is a collection of data and functions (remember that functions just bits of data, too). An object's class defines what those data and functions are and how to make new objects of that class.
So a class is like a cast to make a plastic toy and an object is like a single plastic toy itself.
Java created a file called class, and is identified by having the .class at the end. This file includes a Java bytecode, which then can be used on the Java Virtual Machine.
In java object is an instance of a class. Objects are created using the new keyword. When you use the new keyword along with a class name, an object of that class would get created. Ex: Ferrari obj = new Ferrari(); Here a new object of Ferrari gets created. A constructor of the class Ferrari would get invoked during the object creation.
An Anonymous class in Java is one that does not have a name. It is usually created inside a class
class in dbms is nothing but a collection of attributes.... class in java is defined as collection of objects....:D
with new operator
Object is like a variable of the class type which references the memory required by the attributes of the class.
class is a group of objects that share common properties and relationships. -: class is a keyword. -:class is a blue print of objects. -:class is a declaration , template or a blueprint of objects that is classifying by a object. creating a class with java code-: public class sonu { public static void main (string [] args) { system.out.println(" abhishek is the student of niit bihar sharif nalanda"); } }
It's part of the language specification that all objects in Java must inherit from Object. Java defines a strict class hierarchy, and enforcing a "super most class" ensures that this ordering is maintained.
We can create a exception sub class by extending Exception class available in java
A class file is a compiled .java file and cannot be executed without jdk or java. They are often executed with .bat files in windows for convenience
A factory class is a class that uses the factory method pattern. Factory method pattern is a creational pattern that uses factory methods to deal with the problem of creating objects without having to specify the exact class of the object that will be created. Google for more info.
in java object is created as soon a class comes into picture......and distroyed ehwn exit that class............. (object) it is running instance ......... submitted by- shreyas joshi..