source: www.stationx.net

Choosing the right certification when starting in cyber security can be challenging. With numerous options available, it can be hard to determine which one is the best fit for you.

Our curated selection of the top cyber security certifications for beginners is specifically designed for individuals seeking to join the field of cyber security. These certifications are tailored for those with some IT knowledge or certification.

We will cover the expenses linked to each certification, any necessary prerequisites, the specifics, and the reasons it could be worth pursuing.

Introduction

In the computerized age, the immense measure of information accessible online can be a situation with two sides for researchers and essayists. While the internet offers a gold mine of data, it tends to be challenging to filter through the tremendous ocean of information to find significant, dependable hotspots for in-depth essay research. This is where Java programming, mainly about Java web development , becomes an integral factor. In this article, we will investigate how leveraging Java programming can improve data analysis for essay research, providing you with the apparatuses to uncover essential insights and upgrade the nature of your work.

Java Programming: A Flexible Device

Java is a flexible, significant-level programming language known for its transportability, security, and strength. It has tracked down applications in many domains, from web and versatile application development to data analysis. Leveraging Java in essay research permits you to tackle its ability to gather, process, and dissect data proficiently.

Here are the ways Java can be a distinct advantage in your essay research:

1. Web Scraping

Java's libraries and structures, for example, JSoup, make web scraping a breeze. With web scraping, you can separate data from websites, gather research materials, and incorporate databases of articles, reports, and scholarly papers.

Successful project management requires you to strategize, budget, and work together with theteam you are given. A true understanding of project management is a skill that can be learnedthrough experience, research, and IT internships. Below are some helpful tips for IT projectmanagement.

1) Organise regular meetings

It's important for team members to communicate regularly throughout the project's duration.Regular meetings will make sure that takes place. With this, you'll be able to strengthen your

team communication skills, have members share their progress, and discuss concerns regardingthis and future projects.

It's important for team members to communicate regularly throughout the project's duration.Regular meetings will make sure that takes place. With this, you'll be able to strengthen your

team communication skills, have members share their progress, and discuss concerns regardingthis and future projects.

Thinking of taking A-levels but not sure how to find the best online instructor? No need to worry. The Internet is replete with online resources and platforms that make learning a subject as easy and convenient as never before. Learning an academic topic from home and interacting with an expert who can answer your queries at any time is a win-win situation for students. In this blog, we will explore some tips to find the best online instructor for A-levels . So if you’re looking forward to take A-level from your home, readon!

Know your Learning Style

Before you start looking for a platform to learn A levels, it is important to know your Learning style. Also figure out the subjects in whom you need help like A Level business tuition or so. Different people learn in different ways, and it is important to choose an online learning platform that works for you. Active learners prefer doing things to reading about them.

They prefer to be hands-on and prefer visual and auditory learning. Social learners prefer to learn in a group setting and with social interaction. They prefer to discuss topics and ask questions and like to be in the thick of things. Visual learners prefer to see information in charts, graphs, and diagrams.

They prefer to read textbooks and articles with images, diagrams, and illustrations.Auditory learners prefer to read textbooks with accompanying audio recordings. They like to listen to things and prefer lectures, discussions, and group discussions.

Check the Reputation of the Platform

The first thing you can do is to check the reputation of the platform you want to learn on. You can very easily discover what students are saying about the platform on the web. To find the reputation of a platform, simply Google the name of the website and add “review” at the end of it.

Search engines are the major sources of organic traffic. The average web user will consult Google when looking for information on the Woocommerce composite product plugin. This is even more likely if the web user does not know a particular website that has information about eCommerce plugins. Even web users that know websites that provide information about plugins will most likely use Google because Google will provide results faster than surfing through a website.

Using the Woocommerce shop as a customer approach, website operators now optimize their websites to meet the demands of search engines. While some have been successful, others have not been able to increase their SERP rating. Sometimes, low ranking in search results may be because of what you do, not what you did not do. Making mistakes in creating an SEO oriented website can hurt your SERP rating. Here are 6 mistakes to avoid while designing an SEO oriented website.

Not Registering Your Website in an Online Directory

This is a terrible mistake to make, especially when you are creating the website for a business purpose. Submit your website to online directories like Google My Business. Websites listed in directories appear as a compiled result at the top of related web searches. This boosts your SEOand increases the chances of your website getting more traffic. Not doing this will hurt your website's SEO.

Installing Multiple Plugins

This is one mistake web designers often make, especially those who opt for free plugins. Plugins themselves occupy space and installing multiple plugins will affect your website. Another reason for the installation of many plugins is installing multiple plugins for the same purpose. Some web designers are of the opinion that having multiple plugins will cause the website to get multiple benefits of such features. This has not been proven to be true. Instead, it causes your website to lag. This is a myth and a mistake you should avoid for the sake of your website's SEO.

Not Structuring Your Navigation Properly

When designing a SEO oriented website, always place functionality of aesthetics. It should be what works well above what looks well. No matter how beautiful a template looks, it is best to avoid it if it does not offer user friendly navigation. The navigation of your website is crucial for ensuring premium user experience. It will be a terrible thing if users have to scroll all the way to the top of the page to access the Menu button or the Search icon Not structuring the navigation of your website properly can be detrimental to the SEO of your website.

The world is full of different learners and learning processes, and E-learning is one of them. Every teaching requires other methods, logic, and dynamic ways to make it more effective. Many compelling visuals ensure that what you are teaching is not just heard or seen but also understood. Keeping the learner engaged requires some ways to design your visuals. The visuals include Graphs, maps, videos, animations, images, and many more. You can make the long paragraphs to be explained from a simple image. It can teach the lesson better and remove the confusion. 

The popularity of the E-learning industry is growing, especially in this pandemic. Many video lectures are becoming more available to more people. Adding more to the better e learnings, a Camera plays an integral part in this, making your visual teaching with the camera turned on. Many different cameras are made with good quality camera glasses to improve the video lecture's effectiveness. Your video lecture should be clear and natural to enhance the learners learning.

There are 5 tips and tricks to make the most visuals in E-Learnings:

#1 Infographics

Infographics are the best visual in e-learning, making help summarize the extended context and simplify the complex concepts. There are different approaches to make infographics. The infographic will be made depending on the type of information you want to convey. Please make a list of its graphics and summarize the lesson. To make your presentation more effective, Use icons and images to illustrate points on your infographics. It will make the people learn quickly, and it will be memorable.

#2 White Space

In e-learning, white space has particular importance, just like actual content. In virtual designing, each empty white space has a purpose. It makes the content to be delivered in balance.
White space helps the learner focus more on what's more critical instead of confusing too much text and decorative images. It attracts the learner by giving a pleasant look in the presentation and getting rid of the hassle of showing different methods and confusions. The learner gets a few minutes to watch over the content. Too much crowd and the material will make the learner skip it over.

The question 'how search engine algorithms work' has an ever-changing answer. Most software engineers know the basics of how search engines find new websites. There are algorithms for how a search engine crawls the web and how it ranks a website. Seo companies and software engineers both need to know the importance of understanding how these algorithms work. 

This is not a comprehensive article on the topic, but let's get started about these pesky algorithms.

There are many algorithms

The search result by google follows a collection of algorithms and sub-algorithms that have developed and evolved to solve different problems. With new issues, new algorithms are created. 

Each algorithm has its understanding, architecture, and importance.

Panda algorithm

Panda algorithm was a response to 'content farms'. They are collecting low-quality and thin content websites that exist but give nothing new and unique to the reader. Panda was developed to look in the search index and classify unique content better than the 'content farms'. It also identified 'content farms' and gave them negative ratings. 

What is Neuro-Linguistic Programming (NLP)?

Neuro-Linguistic Programming, which is commonly referred to as NLP, is a psychological approach. It involves strategies adopted by successful people of the world to achieve their goals and applies them to people struggling with similar problems. As the name suggests, it is the brain's language that gives you the power of reprogramming human thinking that makes it capable of transforming lives.

Coaches usually use this technique to solve their problems and achieve their set goals effectively. An SEO consultancy also uses it when it reads the mind of Google and helps the website work according to pleasing it. However, neuro-linguistic programming is not a cup of tea for everyone. There are some techniques that a programmer should undoubtedly learn to achieve command on this rather tricky technique.

Listed below are the five most critical neuro-linguistic techniques:

Anchoring Technique

Anchoring is one of the most fundamental techniques of NLP. It is the process of associating a response to a specific trigger so that the answer is quickly re-assessed the next time something similar occurs.

For instance, you may ask your clients to touch their hands when they feel happy. If they make this action their anchor, they will unconsciously touch their hands every time they sense happiness. Similarly, they can associate a sound with feeling confident so that they can feel confident every time they hear something like that. This technique helps you feel alive and establish mental processes even in complex situations. It indeed enables you to stay positive.

How does a computer perform calculations, scan your system, and search the web in a blink of an eye? Well, that’s possible due to something we call “programming”. 

What is programming?

Programming is the act of making programs, software, computer applications, websites, portals, etc. Through programming a service can be attained from the computer. 

From windows to Facebook, from editing software to games all that we see on screen has been developed by a genius with programming skills. 

Our computers are able to work through the programs we feed into them. It’s like instructions you give to your employee so he/she can work as you desire. E.g. Online Steam (Steam is a gaming platform) works with the help of programmers adding, replacing and managing its features. From games to simple alarm apps, it’s the programmers that make it possible.

8 Quick tips to get started

If you want to learn to program online, then here are 8 tips to get started. Regardless of you being a freshman or an experienced pro, it’s always great to learn more than what you already know.

You are living in the 21st century also known as the digitalized era or the world of technology. It was predicted by previous renowned philosophers that technology would soon take over the world and replace manual labor which is also known as the Artificial Intelligence takeover theory. It states that artificial intelligence would be the most dominant form of intelligence on earth even surpassing human intelligence. This is a real issue and needs to be paid heed to so that AI stays in control and under human intervention and not free from it.  

Artificial Intelligence is an emerging field in the world of today and is paid heed to in the new educational approach known as the STEAM education, which greatly focuses on technology as one of its main focal subjects. 

Artificial Intelligence

Artificial Intelligence (AI) is a branch of computer science concerned with building brilliant machines equipped for performing errands that normally require human knowledge. It is the undertaking to reproduce or recreate human knowledge in machines. It includes perception and the ability to move and manipulate objects.  

There are three different types of artificial intelligence, namely, 

Artificial narrow intelligence (ANI)  

It is also known as weak AI. Weak AI is objective situated, intended to perform solitary undertakings - for example, facial recognition, voice recognition, driving a vehicle, or looking through the web - and is exceptionally wise at finishing the particular assignment it is customized to do. Narrow AI's machine insight comes from the utilization of natural language processing (NLP) to perform assignments. NLP is apparent in chatbots and comparable AI advances. By getting discourse and text in regular language, AI is modified to communicate with people in a characteristic, customized way.  

Microsoft has been paying attention to the creation of games for the disabled. Microsoft has taken a step in this direction, ensuring that almost anyone can play games on computers and Xbox. Whether it be some thriller, action, mind games or any other like a mind booster for chess learn and practice, technology has made it more accessible and fun. Developers will currently send their games to evaluate their accessibility and be tested by players with disabilities.

Since the Xbox Tuning Controller launch in 2018, Microsoft claims that it has launched an alternative platform-provided program for evaluating Xbox and computer games and is consistent with Xbox Accessibility Guidelines (XAG).

What do you need to know?

• Over the years, Xbox has been committed to improving the accessibility of games and formulated the "Xbox Accessibility Guidelines" in 2020. 
• XAG aims to help game developers consider the accessibility of all players when creating games.
• One year later, Xbox has made many improvements to XAG to make it more comprehensive and easy to use.
• Xbox has also launched a new program to help game developers test their Xbox or PC games under XAG and get feedback from members of the game and the disabled community.

Over the past decade, the enthusiasm of developers and gamers for game accessibility has grown exponentially. According to ESA Foundation data, there are nearly 46 million disabled gamers in the United States alone who are playing. It's good to see that game developers are actively looking for resources to guide inclusive game design to ensure that their games are suitable. As the game has evolved from a niche market to the mainstream in the past few decades, it has also been increasingly used by people with disabilities or other considerations. Microsoft aims to make PC and Xbox more inclusive through a new internal testing service that compares games with the newly expanded Xbox accessibility guidelines.

The so-called Microsoft game accessibility testing service is now enabled, and anyone who publishes games on Windows or Xbox platforms can use it.

Microsoft has launched a platform-provided test program to evaluate games based on the accessibility.

Microsoft is expanding its accessibility efforts with a new program for evaluating Xbox and PC games. Today, its game accessibility team announced that developers could send their games to be assessed for accessibility and tested by players with disabilities. The plan was announced along with the Xbox Accessibility Guidelines update released in early 2020.

Every kid should learn to code if we want to prepare the kids for the future challenges of their lives. Coding helps the children to develop their ability in mathematics and writing, but it also gives them useful abilities in life and ultimately in the workplace when they will grow up.

There are different explanations why coding is crucial to study and why coding from an early age should be taught at school. When children learn to code in the early phase of life, their chances of becoming efficient coders increase. Unlike a lot of activities in school, it is possible to learn to code while just staying at home. A computer and an Internet connection are everything that is needed for this purpose. If coding is not part of the curriculum in schools, no worries you can even teach your kids how to code by yourself by taking assistance from the bulk of content available online. Meanwhile, many online private high schools offer programming courses for kids to help them in acquiring and learning that skill efficiently as well.

Let's discuss the top 10 reasons to tell why the kids of all ages should learn to code:

1. Coding enables kids to become critical thinkers

When they learn to code and take guidance, they learn that even if their approach didn't work, there is some other way of doing it. There is never a single approach to do anything. Without thinking about failure, they will focus on what they've already done. In the modern era, coding is a fundamental education, children need to learn to understand and interact with technologies around them. Making kids learn coding at an early age prepares them for the coming years.

2.Coding helps children with Math skills

Coding encourages children to imagine abstract concepts, allows them to apply mathematics to real-life scenarios, and math appears to be more interesting to them. FunCoding helps children reinforce their arithmetic and algebraic abilities, making them eligible to utilize math realistically and enjoyably in real-world scenarios. In one-on-one workshops, each coding session allows children to imagine complex ideas, making the overall experience rewarding and fun.

Technology is considered the modern day magic. A lot of things that seemed impossible have now been made impossible. The internet on its own part has contributed immensely to the growth of sectors including ecommerce, security amongst others. We have now seen the rise of one ecommerce Development Company after another. Your adequate knowledge of the internet and ecommerce, you can even start up your own woocommerce mix and match business. Enough on ecommerce, let's talk about security and how the internet working with technology has helped improve that sector.

Before now there were simple yet effective ways of securing valuables. It started with merely closing the door to the use of metallic locks and it has developed to what it is today. Nowadays, there are far more sophisticated means of securing one’s valuables. These sophisticated means are mostly electronic with a touch of the internet. One of these modes of security includes the use of face verification. Face verification should not be confused for face recognition. Face verification can only be applied when face recognition has been done. In the words of another researcher, face recognition asks "who are you?" While face verification asks "is that you?". This article will make you understand face verification: an amazing technology beyond imagination.

More personalized and secure mode of security

This form of security is a step higher than the already existing modes of security. It will take some serious effort to bypass this mode of security. Tests have proven it to be more than ninety percent accurate. In other words, it will be very hard for someone else to access your car, house or phone when you use Facebook verification. This mode of security is also more personalized as it removes every room for guesswork.

No need for keys, locks or passwords

With face verification mode of security, you will access your house, office, cars and/or your phones without having to remember your password. The issue of security is a serious one and people are advised to not use one password across the board. Imagine the stress of having to remember all those different passwords and which device or place they are to be used.

The world of commerce is experiencing a revolution. You do not have to get in physical contact with someone to do business with him or her. All you need to do is login to an ecommerce store, order what you want and pay for it. The ecommerce company will give you a period within which it will deliver the item(s) to where you want them.

It is even getting to the point where you can try out a new product you intend to buy via its virtual form. Meaning that you can try out the look, the new sofa will give your sitting room without even bringing it in. With the help of technology, you can simulate your sitting room and place the virtual form of the chair in the position you intend to put it. It is amazing what technology can do for ecommerce and WooCommerce Whatsapp Order. Today however, we will be considering how AI is transforming the marketing world. We will be highlighting the benefits of artificial intelligence to marketing and woocommerce mix and match industry.

AI through automation helps you plan and execute ahead

Marketing is actually a full time job. It is not as easy as most people think it to be. It involves a serious amount of planning and execution. Most often than not, people tend to get the planning aspect correct. For some reason however, the execution aspect becomes a serious problem.

This is even more so if you are working on a number of projects simultaneously. Marketing will not forgive you because your schedule is packed. However, AI will ensure marketing does not punish. Through automation, you can now make an assistant out of AI. You can schedule a number of digital activities for it to execute at a later date and time. You do not have to set a reminder about flagging off your email marketing campaign.

It also help you provide better customer services

Artificial intelligence is continuously proving its importance. When marketing, you want to give your prospective customers the impression that you are a supportive enterprise. You will not be able to do that if you are not always available. Truth is, you can almost never be always available. It is almost impossible to be online 24/7. I said almost because it is not very impossible. It does not matter if you went offline, what matters is whether or not your customers will notice your absence. With AI powered chatbots, nobody will observe that you went offline. These bots will respond as if your customers are chatting with a human being.

Python is a high-level, interpreted programming language. Python is quickly ascending to the forefront of the most popular programming languages in the world. Python is a general-purpose programming language, so it can be used for many things. Python is used for web development, AI, machine learning, operating systems, mobile application development, and video games.

Python in Real-World 

 Python is used in every industry and scientific field which you can imagine as follows: 

•     Web Development
•     Game Development
•     Machine Learning
•     Data Science   
•     Computer Science Education
•     Biology and Bioinformatics
•     Neuroscience and Psychology
•     Computer Vision and Image Processing
•     Medicine and Pharmacology
•     Astronomy
•     Robotics
•     Business
•     Meteorology
•     GUI development
•     Autonomous vehicles and so on

Web Development

Python offers pre-built libraries and frameworks such as Pyramid, Django, and Flask; web applications can be developed rapidly. Python is a go-to for complex web development projects, as its flexibility makes it possible to create sophisticated web utilities with relative ease. 

Python Frameworks provides unparalleled security, scalability, and convenience as compared to building websites from scratch.Giant websites and platforms like YouTube and Google rely heavily on Python for critical infrastructure. This has further enhanced its reputation as a solid component in the web developer’s toolkit.

We are living in a digital world, learning android development like a difficult task but it has many opportunities for digital marketing companies in Dubai. Moreover, you can develop tools to improve workflows or you can learn new skills to approach good jobs. Android app development is not as tough as it seems as far as understand different moving parts have some smart ways to learn android development programming.

Downloading tools for Android app development: to support android app development goals you need to create an environment to your desktop. Android studio integrated development environment in which you enter code to reach all the tools needed for the development. An android studio allows accessing libraries, moreover gives you access functions of the operating system. There are more options available on your android app development. There are tools like unity for cross-development game development in support of android, for example, visual studios like xamarin are the perfect combination for developing cross platforms apps. Android studio is a perfect place for many people with android game development because it makes sure to provide tools and resource in one place. More importantly, its setup is very simple you have to follow the instructions.

Start a new project: when an android studio is on your machine then the next step is to start a new project. It is a direct process but needs some decisions to take regarding the impression of android app development. Go to file then new and then to a new project you have to select the project template it is for the identification of code and elements that include in your app when it will be in running position. On your app, there will be activity seen which refers to your screen. Despite the basic part of the structure if there will be a project with no activity then it will be empty but with the basic activity you will start to create a screen on your app and there will be the addition of a button to the bottom and hamburger to the top menu. In the initial basis of development, things can get complicated to over that empty activity can create files that won’t add a lot of additional code.

Choose a package name that will be seen by the audience when will install it on devices and this name will be reference by android to differentiate from other applications. You have to decide where files will be saved and what language will be coded in; Java or Kotlin.

Java or Kotlin for app development, the main decision is to make as an android developer where will be learned Java and Kotlin these both supported by Google and Android studio with some differences. Java is been supported by Google for a long time and developers are using to craft Android apps for many years. It is mostly demanded program language worldwide and a great choice for development career beginners. On the other hand, Kotlin preferred by Google for Android Development, it is a default for a new app and more common and easier to get grips, complete beginners.

As a website developer or designer, you need to know the WordPress plugin. It is crucial in the world of WordPress. In the beginning, developers used their code to develop each web application. As technology advances, developers have adopted a new way to create applications with CMS. As a result, you may find that many developers are trying to create a new plugin to save technology.

For example, suppose you run a company and are looking for a program with auto service. A few years ago, you had to do custom development from scratch. However, building an app with WordPress is now much more comfortable and saves money and time. The most significant benefit of plugins is that they add new functionality to existing ones like WooCommerce product video plugin helps boost the awareness regarding your products and brand.

The world of websites and web development owes a lot to WordPress in general. WordPress alone currently accounts for 29% of the Internet. Also, the market share of WordPress CMS alone exceeds 60%. What do we love about WordPress? Ease of use, open-source community, platform beauty, blog, etc.

If we learn the secret and get down to the micro-level, WordPress plugins could be the answer. In parallel, WordPress plugins are available for various purposes. With over 35,000 plugins and less than 800 million downloads, WordPress is the king of CMS.

WordPress Evolution

WordPress is considered to be the most powerful website. In today's life, WordPress has provided a terrific solution for businesses. For example, the WooCommerce plugin allows visitors to buy a product while sitting at home or elsewhere.

Java and python, both are object-oriented programs; they use objects to display their data and procedures. In today’s world, Java and Python are considered to be the two hottest and trending programming languages that have taken over the digital world.  When it comes to students, they are often confused about both the programs.  We are listing down the fair comparison between Java and Python that would help you to get an idea about their performance, language, and trends.  Before that, it is essential for students to have a clear idea about the Java web application development, and for that, there are some tips that you need to keep in mind to become a successful programmer.

Tips for students to enhance their expertise:

• Programming is very critical, so don’t rush the basics. Don’t rush through the initial lessons; instead, give yourself time to learn the basics of this language.
• Don’t let small mistakes discourage you in any way. Pay attention to every single of your mistakes, and try to overcome them. Learn from your mistakes.
• Don’t be overconfident if you already know something. Read everything thoroughly.
• Don’t try to memorize the codes because there are many codes there, and you won't be able to keep every single of them in your mind. Instead, just understand them.
• Keep track of the questions you have when learning.
• Don’t spend your entire night coding. Take breaks so you can focus effectively and grab new things.

Java:

• Java runs almost 3 billion devices worldwide. It is the most popular object-oriented programming language. It is compatible with nearly every operating system; Windows, Mac OS. It is based on the simple concept of writing once and running everywhere. It offers pure, robust, portable sacred, and platform-independent features.
• Based on the performance, Java is quite faster. By the use of the JV, it runs faster on any platform, meaning; whenever you’re looking for speed in your system, you need to opt for Java.
• Java follows the strict syntax pattern, so it is a bit complex. The program won't run if you miss even a single semicolon or variable. Java community support is available, which would help you to contact the developer for your queries.
• If we look at it through a job point of view, learning Java is a must I order to get better paying corporate jobs. Hence, the demand for Java is comparatively more in the market. Learning Java teaches you skills that get you high paying duties from website development of enterprise applications to server-side apps.
• Indentation makes you look appear more logical for other programmers out there. In Java, one doesn’t have to worry about indentation or the structure. In this case, there would be blocks defined within curly braces.
• It is mainly known for mobile or web applications.
• Java has more commercial tools and more significant code libraries that are better documented.
• Java programmers are more likely to become a hacker due to his intense coding. It is for running a server on.

Python:

• A python is also object-oriented programming, having all in one programming language as it offers a variety of functionality to its users. It's famous among its customers because it's readable and easy to comprehend.
• Python is an interpreter itself and is pretty slow. So, use python if speed is not the focus of your system.
• In the case of the jobs, there is not much demand for this program because it is not the actual programming language.
• Indentation is a must in python.
• Python is mainly used in machine learning, programming, and much more. It is also used for small applications.
• Code and libraries for python are not better documented.
• Python is also considered a programming language for “ethical hacking.”

Java is best for essential learners because it is a baseline for any computer language as it has many innovative features. In short, Java is where the money is at, and python is less enterprise-oriented. In the end, Java is responsible for getting you the jobs.

Ever since coronavirus has come up at large, there has been a full ascension in learning through online tuitions. Everyone has somehow been connected with their subject fellows on the internet through one way or another. People have been learning online web developing courses by renowned institutions of programming. 

The java programming language is around for more than two decades, and it has been expanded from small mobile apps to large banking applications running for world-wide investment banks. In simpler words, Java is a server-side language that creates high performing & low latent servers to handle complex tasks.  

If you're new to the field but want to access the world of Java, there isn't a better time for it.

Here's the list of java course options you can avail while you're at home with a lot of free time. 

 1.Coursera- Object-Oriented Programming in Java Specialization