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Showing posts from April, 2020

JAVA STATIC KEYWORD

JAVA STATIC KEYWORDIn Java, the static keyword is used for memory management. We can apply static keyword with variables, methods, blocks and nested classes. The static keyword belongs to the class than an instance of the class. Java static variable: If you declare any variable as static, it is known as a static variable. The static variable can be used to refer to the common property of all objects (which is not unique for each object), for example, the company name of employees, college name of students, etc. The static variable gets memory only once in the class area at the time of class loading. Advantages of static variableIt makes your program memory efficient (i.e., it saves memory).
Understanding the problem without static variable
class Mca{       int roll_no;       String name;       String college="ITS";  } 
Suppose there are 500 students in my class, now all instance data members will get memory each time when the object is created. All students have its unique roll_no…

What is class and objects in java? | What is the difference between class and object?

What is class in java? Class is a blueprint. In Java everything is encapsulated under classes. A class is used to bind data as well as methods together as a single unit. Class will have: ·Attributes (instance Variables)·Methods (Functions)
the instance variables and methods are known as class members. What is Object?An object is the instance of the class, which helps programmers to use (access) variables and methods inside the class. Given a class you can create how much ever objects you want. The objects (also called instances) are created using new keyword.
Syntax for creating an object of the class:ClassName objectName = new className(); Here, we are using the constructor (className()) to create the object. Don’t get bothered about constructor. We will learn the constructor in next class. How to access members?Objects are used to access members of the class. We can access members of the class (methods and access instance variables) by using the . operator. We will see in the example.
Obje…

Carrer Opportunities after MCA | Government jobs after MCA

I am also a MCA graduate from Chandigarh University. Here i am showing you all the further directions that can be done after MCA. The further directions might be jobs (govt or private), higher studies, entrepreneurship, etc.
Government jobs after MCANICBankingAssistant ProfessorLecturer in Higher Secondary SchoolJunior Assistant Jobs in various departmentsMany other State SSB jobs. NIC: You can apply for the position of Scientist or Technical Assistant in the NIC (National Information Centre). Further studies after MCAPhDM.PhilMBAMtechAny other master degree I suggest you to pursue PhD if you are interested in further studies. So in accordance, it is required to clear UGC NET, if some one wants to pursue PhD in reputed institutions for getting fellowship. However, UGC NET is not mandatory. Private Jobs after MCA It is suggested to go in MNC as software engineer role.


File Handling in Java

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File Handling in javaThis topic is also known as IOStream or Java IO. Java I/O (Input and Output) is used to process the input and produce the output. Java uses the concept of a stream to make I/O operation fast. The java.io package contains all the classes required for input and output operations.

Some input-output stream will be initialized automatically by the JVM and these streams are available in System class as in, out, and err variable.
In refers to the default input device, i.e. keyboard. (System.in…) Out and err refers to the default output device, i.e. console. (System.out…..) Streams:Streams are the sequence of bits (data). Types of Streams on the basis of flow of data: Input StreamsOutput Streams
Input Streams: Input streams are used to read the data from various input devices like keyboard, file, network, etc. Output Streams: Output streams are used to write the data to various output devices like monitor, file, network, etc. Types of streams based on type of data:Byte Stream: used…
The best countries and preferable universities for pursuing PhD are:

US
Germany
Australia
France
Switzerland
Zealand
Japan
Canada
India

What is a Search Engine? | How does a search engine work? | Popular examples of search engines

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A search engine is an application which is used to find the information from the web servers. We just provide some keywords to search engine, and in return the search engine provides us the information we need.

In this post, we will cover the following contents: What is a search engine?Popular examples of search engines.What are the different types of Search Engines?How does search engine works?How to use the search engine effectively? WHAT IS A SEARCH ENGINE? A search engine is a software system which is designed to search the World Wide Web in a specified way for getting the information specified in search query. Popular examples of search engines are Google, Bing, Yahoo, DuckDuckGo etc;  WHAT ARE POPULAR EXAMPLES OF SEARCH ENGINES? The most popular examples of search engines are provided below: Google Bing Yahoo Baidu Yandex DuckDuckGo Ask.com AOL.com WolframAlpha Internet ArchiveSearch Market Share Worldwide Search EngineShare MarketGoogle91.5%Bing2.55%Yahoo1.64%Baidu1.44%Yandex0.45…

What is Web Personalization? Process of Personalization

|WEB PERSONALIZATION | THREE GENERATIONS OF THE WEB | WEB PERSONALIZATON Web Personalization is the process of customizing a website to the needs of specific users. It is the process of providing a unique experience to the every user. For example, if a person sitting at India is using Amazon, the person will be showed up the results which are most frequently purchased or viewed by Indians. This is called web Personalization. Let's understand, when and how the process of Personalization generated with the help of different generations of the web. THREE GENERATIONS OF THE WEB Web 1.0.Web 2.0.Web 3.0.
Web 1.0 It is the first generation of the web. It was read only web. In this generation of the web, the users are allowed only to read the information. It was very limited due to the limited resources. It was same like as we read newspaper. In this generation, the users were not able to provide the feedback or comment on an information. Moreover, they couldn't communicate effectivel…

What is Web Mining? What are different techniques of web mining?

|Web Mining | Three techniques of the web mining| WEB MINING Web Mining is the process of mining the useful information from the web. It can be better understand with the help of looking the working of a search engine. Search engine actually works on the principles of web mining. There are three techniques used in web mining. THREE TECHNIQUES OF WEB MINING Web Content Mining.Web Structure Mining.Web Usage Mining. Web Content Mining Web Content Mining is the process of analyzing the contents of web pages. It is also knows as the web scrapping or web harvesting. Web Structure Mining Web Structure Mining is the process of knowing the relationships among the different web pages like how the web pages are interlinked with one another. It is also used to find the ranking of a web page. Many algorithms are used for finding the ranking of a web page. Alexa Ranking, Page Ranking algorithm, HITS algorithm, etc, are the examples of page ranking algorithms. Page Ranking algorithm which was develo…

Schedule of Examination for UGC NET June 2020.

The UGC NET is conducted in two shifts: morning shift and evening shift. The details of these two shifts is shown:

FIRST SHIFTSchedule of ExaminationBetween 15 June 2020 to 20 June 2020Timing of Examination09.30 am- 12.30 pmDuration of Examination03 hoursEntry into the Examination Centre7.30 am - 8.30 amEntry in the Examination8.45 am- 9.00 amInstructions by the invigilators9.15 am -9.25 amTest Commences9.30 amTest Concludes12.30 pm


SECOND SHIFTSchedule of ExaminationBetween 15 June 2020 to 20 June 2020Timing of Examination02.30 pm- 5.30 pmDuration of Examination03 hoursEntry into the Examination Centre12.30 pm -1.30pm
pmEntry in the Examination1.45 pm- 2.00 pmInstructions by the invigilators2.15 pm- 2.25 pmTest Commences2.30 pmTest Concludes05.30 pm