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object

object (instance)
subject			fact

object	is a synonym of instance
	when an object is created the object's variables are set to default values the constructor of the object's superclass is invoked the object's initialization block is invoked the object's constructor is invoked
	object is not cloneable unless you implement the Cloneable interface and you override the clone method for the object's class
	when an object is created then the runtime system creates space for each of the object's instance variables
	when an object is not needed any longer the object's space is garbage collected
	can access all instance variables of all objects of its class
	can be encapsulated by providing accessor methods
	can be converted into a string using the toString method
	can be referred to without reference to the instance variables contained in it
	can be referred to by several different variables at the same time
	can communicate with every object to which it has access through its public interface
	can convert itself to a string representation using the toString method
	can model a real-world object or an abstract concept
	can notify other objects that a condition variable has changed
	can receive messages from objects in the same process objects in different processes objects on the same machine objects on different machines
	can represent any entity to which you can associate properties and behaviour
	can return its class using the getClass method
	can send messages to objects in the same process objects in different processes objects on the same machine objects on different machines
	can wait on 0 or more condition variables
	communicates with other objects by sending and receiving messages
	has definition A data element in an object-oriented system, which has its own identity, belongs to a particular class, and has behaviour and properties
	has definition A software bundle of variables and related methods
	has definition A piece of memory that holds data in instance variables and a pointer to its class
	has 0 or more instance variables
	has 0 or more methods called instance methods
	has behaviour that is specified by its methods
	has state that is maintained in its variables
	has example of creation String name = new String();
	has part public interface
	hides methods from other objects using the 'private' keyword
	inherits instance methods and instance variables from the class to which it belongs all that class's superclasses
	is distinct from every other object even if they contain the same data
	is a subtopic of Objects
	is created by declaring and initializing it such that it is created whenever execution enters a particular block, or, in the case of an instance variable, when an instance is created, for example: String aString = "some text"; or by declaring it and initializing it later using the new operator, for example: String aString; aString = new String("some text");
	is a kind of kbTop
	shares every instance method of its class with the other instances of its class
	shares its implementation with other instances of its class
	shares one copy of each class variable of its class with the other instances of its class
	to create you use the new operator

Kinds of object :

• array (2 kinds, 26 facts) - A collection of data items that are all of the same type, in which each item's position is uniquely designated by an integer
• current object (4 facts) - The object whose method is currently being called
• exception (5 kinds, 23 facts) - An event that happens during program execution that prevents the program from continuing normally; generally, an error
• GUI event object (2 kinds, 10 facts) - A common object used in GUI window systems to represent the action of a user pressing a mouse button or a key on the keyboard
• instance of wrapper class (6 facts)
• string (11 facts)
• thread (19 facts) (lightweight process) - An object used in multithreaded software systems that represents a sequence of program execution
• uninitialized object (4 facts) - An object that has been declared but has not been assigned a value

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