Скачать или смотреть #46 Anonymous Object in java

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In this lecture we will learn:
Object creation in Java
Anonymous objects in Java
Difference between Simple objects and Anonymous objects


#1
In JVM, we have both stack memory and heap memory.
Object is created in the heap memory that contains variable and methods, it also have some address.
A obj=new A();
obj.show();
here, A is the classname.
obj refers to the address say 101
show() is a method that is called using reference variable obj.
Every time you call an object, it will call the constructor as well.
Object creation can be done in two ways:
1. Declare an object - creating a reference
2. Creating an object - and assigning the value to it
e,g., A obj;
obj=new A();
*new A() shows that you are creating an object.
Reference of an object is created in the stack.


#2
Anonymous Objects:-
Anonymous objects are simply created by using the new keyword.
It does not have any reference for an anonymous object.
e.g., new A();
A method can directly be called using this object.
new A().show();
We can't use the same anonymous object again. It will be use only for one time.


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