Inversion of Control This is a principle by which control and management of the object are transferred to the framework. IOC enables the framework to take control of the flow of the program, we just need to provide a configuration file. Inversion of control can be achieved by different techniques one of them…

SERVLET Servlets are Java classes that extend HttpServlets and it is used in server-side to create a dynamic web page. These special classes are able to handle requests from clients.HttpServlet …

CSS grid is a two-dimension layout system that makes beautiful layouts for our webpages by arranging elements into rows and columns. We can place elements at precise locations, using a grid we can control or add rows and columns. …

Introduction It is used to create a layout for a webpage. It is used to arrange elements of the webpage to create a beautiful customized page layout. According to screen size, flexbox layout gets arranged automatically, we can make our web page responsive without using a media query. Flex-box uses…

It is a technique to remove and reduce redundancy from a table in the database. The problem we face that can be resolved by normalization are:

An algorithm can be written in many ways but some codes perform better than others because those codes can run in less time as compare than others for the same inputs. Those codes have less time complexity. Time complexity can be defined as the time taken by algorithm increases with…

If we want to represent a group of individual objects as a single entity then we should go for collection. In general collection interface is consider as root interface of collection framework but there is no concrete class which implements collection interface directly. List(I) The list is child interface if…

Important oops features in java Inheritance Abstraction Encapsulation Polymorphism INHERITANCE Using inheritance a class can acquire all properties and methods of another class ie: parent class. Syntax: class a{} class b extends a{} Advantages of inheritance oops doesn't encourage to duplicate same code, inheritance is oops kind of way to…