Java Swing is technolgy which we are using to design 
desktop application.
JSP is a server side technology called as Java Server Pages.

when we need to design a application in client - server 
architecture where client is desktop application then we 
will go for swings in java, and we can use jsp on 
serverside.

JSP is also used to represent the view as HTML on browser 
in MVC architecture.

swing is a technology which is used for front-end design.
jsp is technology which is used in server side

Constructor is a member function of class that is used to
create objects of that class.

we can also intialise instance variables.

Constructor is a special type of function which is 
available for every class.

Constructors can be used to create a object in different 
forms.

Constructors can be used to execute a statements when 
object is creating.

Constructors can be used to intialized the object 
properties.

constructor  is a function, which would be executed only at 
the time of creating an object.
constructor would be executed only once on the object.

constructor is a member function with same name of the class
if we call constructor it will automatically invoke the object
of that class.when we calling the normal member function we
usually creating object of that class then calling it using
the .operator

Generally without try catch trow we can not handle 
exceptions handling is not a good practice.

In that case we have to first find the probalbe case for 
exception and using if else codition we have to implement 
those condition and handling this.