Class and Object in Java
Class and Object in Java
What is Class?
A class is a basic run-time entity and it contain collection of properties and methods.
Syntax:
[message type=”simple” bg_color=”#eeeeee” color=”#333333″]Class Class-name { //Data member and member functions }[/message]
Example:
[message type=”simple” bg_color=”#eeeeee” color=”#333333″]Class Add { Public Int num1,num2; //data member Public int addition(int a,int b)// member function }[/message]
What is Object?
Instance of a class is called as Object. It is used to access the data member and member functions of class.
Creating object of class:
Syntax:
Classname obj-name=new classname();
Example:
Add a=new Add();
Accessing data member
Obj-name.VariableName;
Example:
a.num1
a.num2
Accessing member function
Obj-name.MethodName;
Example:
addition(23,45);
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