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Taking classes online, also known as distance learning, can be a more flexible and affordable method of developing new skills than traditional brick and mortar classrooms.

Table of Contents

In this article, I will take a look at how online classes work, their benefit to your education and career, and I will sample some online sites with tips on how to get started.

Online Classes Provide Flexibility

At times when people are unable to access typical face-to-face learning opportunities, people usually turn to online education opportunities.

This not only applies to higher learning centers but to parents looking for online learning opportunities when access to public schooling is limited or where you have physical limitations that keep you from attending traditional classes.

How Do Online Classes Work?

Technology has revolutionized the way people learn today. With online classes, instead of having to sit in a classroom, students of all ages can study and learn from home. Depending upon the class or program, you’ll need to have a stable internet connection and some required software (usually just a word processor).

What Is an Online Classroom?

Online classes are offered and run much the same way they do in a classroom setting. The difference is students don’t have to be physically present at a school.

The structure of each online classroom will vary depending upon the course or program and the goals of the organization. However, the typical scenario is for a student to log into a virtual portal or a learning management system (LMS) that hosts and tracks online learning.

Students can access this virtual portal to view their course materials, check their grades, contact professors, and monitor their progress. Check with the school to see if their LMS is accessible on mobile if you want to be able to access courses from anywhere.

Online Classes are Flexible

One of the many benefits of taking online classes is the ability to work at your own pace. However, there will still be deadlines to follow for when assignments are due.

Some programs offer live online lectures at specific times where students can participate in discussions via videoconferencing software.

How to Get Started and Log On

Students need to have access to the software used by the online university. They will start by going to the website and logging on with their credentials to access the material related to the courses they’re taking. Different educational institutions use various LMSs. Each one is different in format but has the same function and are all cloud-based.

LMS software gives students access to their assignments and grades from any remote site. It provides a platform for teachers and students to ask and respond to questions and provide feedback.

Some of the more popular LMS software programs are:

ProProfs LMS Software

ProProfs LMS is an intuitive SaaS system. Educators can create online courses, share, and track performance in a centralized virtual classroom.

It provides completely self-paced eLearning solutions and adds interactivity to the course that includes flashcards and quizzes.

Moodle

Moodle is a free open source online LMS that provides educators with a customizable and scalable platform for online learning.

It delivers a quality distance learning experience by providing a secure and personalized environment.

Canvas LMS

Canvas LMS is an open, intuitive, cloud-based platform for online classes. It provides online course material, gives assignments to students, and streamlines all the content and digital tools for teachers and students to use.

Blackboard

Blackboard helps global learners and educators enable institutional and student success. They accomplish this by leveraging innovative services and technologies.

Google Online Learning Tools

Whether it’s through Google’s G Suite Education, Google Classroom or Google Hangouts Meet for business, Google makes it easier for people globally to learn online.

Enterprise-level features are available on the Google Platform including the capacity to record meetings and save them to Google Drive, and live stream for up to 100,000 viewers.

Also, students can join classes using Google Classroom to pursue their online studies.

How to Sign in to Google Classroom

There are three types of user accounts you can use to log into Google Classroom:

Your personal Google Account used outside of a school setting, often for homeschooling.

A school account, also called a G Suite for Education account, that is set up by the institution. Students can get account login details from the IT department at the school or from their teacher

The G Suite Account set up by the educational institution’s administrator

Some Programs Include In-Person Components

Some programs require students to participate in a campus residency program before, during, or after the course is over. Lengths, requirements, and details will vary according to the program and the educational facility.

Some programs include networking events, informational sessions, and team-building activities. Health fields such as nursing will likely require spending time in a clinical setting.

How Can Students Interact with Teachers and Classmates Online?

Students can communicate with others as well as their teachers using discussion forums, video conferencing, social media, phone, and email.

What Should Students Expect from Online Classes?

One primary concern for many students enrolling in online programs is that they think they need to be a technical guru.

This is not the case at all. Online learning has evolved over the years to become more user-friendly while the student population has become more skilled in digital technology in general. One of the benefits of learning in a classroom is the ability to be presented with different opinions and viewpoints from educators and classmates.

However, this same type of interaction is possible in a virtual classroom environment. The flexibility of online classes is well-worth any surmountable potential challenges students might face.

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How Do Crypto Wallets Work?

What is Crypto Wallet?

A crypto wallet is a software program where your BTC is stored, and each crypto wallet has a private key along with the public address of the crypto wallet. When it comes to the transfer of BTC, it happens basically between two crypto wallets on the blockchain network. It doesn’t matter what type of wallet the user has because all of them have private and public keys and are doing the same function of keeping your BTC safe. Some of the forms of crypto wallets are desktop, hardware, mobile, web, and other storage options. The difference in the format as some need to be connected to the Internet in order to function and the others are considered cold storage options because they are not connected to the Internet. For example, hardware wallets are considered a cold storage option because you use them to store your BTC, and they are specifically considered very secure. The wallets that are connected to the Internet are also known as hot wallets, and they are more accessible, cheaper, as well as convenient for daily use or trading.

BTC Trading

In case you want to get into trading and invest in e-Yuan a great place to start if you lack experience or certain skills is by registering on an automated trading site like

How You Use BTC Wallets

First, private keys are also known as seeds, and they are used to sign the transactions, and by doing so, the mathematical proof is generated that this transaction was initiated by the owner of the wallet. The private keys are also important because it prevents anyone from altering the transactions. After the BTC transaction is initiated, it is sent to the blockchain network, where through the mining process, it is validated or processed within 10 minutes.

Bitcoin is one of the most profitable cryptocurrencies, with a market cap of over $1 trillion. This cryptocurrency not only achieved unbelievable thresholds by surpassing $60,000, but it also boosted the popularity of other altcoins on the crypto market. Today, the perspective of most institutional investors, as well as governments and organizations regarding cryptocurrencies, is much more positive, and they are looking to add these assets to their portfolios and encourage better conditions for crypto trading and crypto businesses. But there is one essential component, and without it would be impossible for BTC to be traded on any platform, and that is a crypto wallet. Let’s take a look at why crypto wallets are important and how they work.A crypto wallet is a software program where your BTC is stored, and each crypto wallet has a private key along with the public address of the crypto wallet. When it comes to the transfer of BTC, it happens basically between two crypto wallets on the blockchain network. It doesn’t matter what type of wallet the user has because all of them have private and public keys and are doing the same function of keeping your BTC safe. Some of the forms of crypto wallets are desktop, hardware, mobile, web, and other storage options. The difference in the format as some need to be connected to the Internet in order to function and the others are considered cold storage options because they are not connected to the Internet. For example, hardware wallets are considered a cold storage option because you use them to store your BTC, and they are specifically considered very secure. The wallets that are connected to the Internet are also known as hot wallets, and they are more accessible, cheaper, as well as convenient for daily use or chúng tôi case you want to get into trading and invest in e-Yuan a great place to start if you lack experience or certain skills is by registering on an automated trading site like YuanPay Group . You only need to set up the account and watch the automated system trade for you while it can complete a greater number of trades compared to manual trading. Furthermore, on this platform, there is a daily profitability rate of up to 80%. Mobile and web wallets are used for online purchases and trading. The only difference is that the mobile wallet is basically another app that you download on your phone, and it can also be used for offline shopping; while the web wallet, it is not considered that safe because its public and private keys are stored on the server of the provider of the wallet. Still, they are most convenient and accessible, and most trading platforms offer one as part of their services.First, private keys are also known as seeds, and they are used to sign the transactions, and by doing so, the mathematical proof is generated that this transaction was initiated by the owner of the wallet. The private keys are also important because it prevents anyone from altering the transactions. After the BTC transaction is initiated, it is sent to the blockchain network, where through the mining process, it is validated or processed within 10 minutes. On the other hand, the public address of your wallet, which corresponds with the private key, is used for receiving BTC transactions. The public address is displayed as a random string of alphanumeric characters, and it is not completely anonymous, as data about the transactions are transparent in the network. Also, if you are a business owner, regardless if you have an online shopping site or brick-mortar store , your customers would need to know your public address in order to make purchases.

What Happens When You Compress A File?

We all know that we need to compress a large file if want to transfer or send it to someone. But have you ever thought about what happens to a file when it is compressed? How does the size of a file reduce by compressing? What actually is a file compression and is the quality of a file compromised while compressing it?

These are a few questions that we will be talking about, in this post.

What is file compression?

As the name implies, file compression means compressing a file to reduce its size. File size can be reduced up to 90% by restructuring, encoding, or modifying its data, and this is what we call file compression.

Compressing files saves a lot of disk space on your PC and also, you can send a compressed file over a slow internet connection. WinZip, WinRAR, 7-Zip, Zip Archiver, and PeaZip are a few of the most common file compression options.

What happens when you compress a File?

When we compress a file, it is converted into a zipped file and if you are sending a zipped file to someone, the receiver has to decompress (extract) it to open it. After decompressing it they can view the file in its original size.

Types of File Compression

There are two types of compression- Lossy compression and Lossless compression the major difference between the two is that in Lossy compression your data quality is compromised a little and in Lossless compression, your file remains intact. Let’s learn this in a bit more detail.

What is Lossy Compression

In lossy compression, your file is compressed by eliminating the unnoticeable data. This type of compression saves you more space as it reduces the file size significantly, but as mentioned above, in lossy compression, the quality of your file whether it is an image file, audio, or a video file, will be compromised a little. Although, you might not even notice that little change in the quality from your naked eye. A file compressed with lossy compression cannot be restored in its original form after decompression. It is also termed an irreversible compression, which means, that once compressed, you cannot bring the file into its original form (because we actually remove certain data of the file while compressing). You can use lossy compression in images, audio, or video files. Below are two of my images compressed using the lossy compression, see if you can find any difference in the quality.

Read:

What is Lossless Compression

Unlike the lossy compression, here the unnoticeable data of your file is not eliminated and hence this compression won’t make a significant change in the file size. In lossless compression, only the unwanted data is removed and the main information is encoded in fewer bytes, hence no quality loss. A very common example of lossless compression is the Zip format. In this format, you can compress one or more files into a single location, which makes it easier to transfer. Although, a Zip file might not save you huge disk space. You can use lossless compression on the images, audio, and text files. This doesn’t work for the video files. The best part is that you can view the file in its original form after decompressing it.

In lossless compression, redundancy is removed. Data redundancy is a condition created within a database or data storage environment in which the same piece of data is held in multiple places. By removing redundancy, you will be left with just one instance of each bit of data.

For instance a file like this-

AAAABBBBBBBCCCDDDDD

could after compression become-

A4B7C3D5

Read: Monkeys Audio is a great free lossless compression software for your music files

As we read above, lossy compression saves you more space as compared to lossless compression, people prefer using lossy compression more for their regular usage. It comes in handy when you have to send a large size image or an audio/video to someone or when you want to print an image. However, if the quality is important to you, you should rather choose the lossless compression method.

Your anti-virus software might not be able to scan the compressed file for viruses and trojans which may harm your PC.

The receiver cannot open a zipped file without having a program to decompress it.

Both compressing and decompressing use some memory and the processor of your PC, thus it may make your PC a little slower while the process is done.

Read: How to repair corrupted and damaged zip files

What compression do Zip files use?

Zip files use lossless compression which means the quality of your data is not compromised when compressed in a Zip format. Remember that compressing a file into Zip format might not help you with significant disk space. Windows OS too offers a built-in Zip feature.

Does compressing a file reduce quality?

With lossless compression, there won’t be any loss of quality but if you are using lossy compression, the quality will be reduced a little. A compressed image or video may lose its sharpness and fine details.

How Do Breakpoints Work In Bootstrap?

Definition of Bootstrap Breakpoints

The bootstrap breakpoint is an element used for responsive layout and content interfaces in the web application. It is controlling screen width size and web application elements as per device requirement. It is an element that sets the size and screen view of the web application and makes a mobile responsive application. The website works on most laptops and desktops but it helps to control the height, width, and size of the website as per various types of screen devices.

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It is made of websites depending on small, medium, large, extra-large size screen devices.

Syntax

The bootstrap has mainly four breakpoints which are sm, md, lg, and xl.

The bootstrap has a “mobile-first” responsive framework therefore extra – a small (xs) breakpoint is the default size in the web application.

The bootstrap small (sm) breakpoint which is used for equal and greater than 576px screen size devices.

The small breakpoint uses the media query or –breakpoint – on the web page. The small breakpoint syntax is below.

@media (min-width: 576px) { web application elements } *–sm–*

The bootstrap medium (md) breakpoint is used for equal and greater than 768px screen size devices.

The medium breakpoint uses the media query or –breakpoint – on the web page. The medium breakpoint syntax is below.

@media (min-width: 768px) { web application elements } *–md–*

The bootstrap large (lg) breakpoint which is used for equal and greater than 992px screen size devices.

The large breakpoint uses the media query or –breakpoint – on the web page. The large breakpoint syntax is below.

@media (min-width: 992px) { web application elements } *–lg–*

The bootstrap extra-large (xl) breakpoint which is used for equal and greater than 1200px screen size devices.

The extra-large breakpoint uses the media query or –breakpoint – on the web page. The extra-large breakpoint syntax is below.

@media (min-width: 1200px) { web application elements } *–xl–* How do Breakpoints work in Bootstrap?

Bootstrap is a mobile-first language and used for responsive websites. The below attributes used for the bootstrap responsive application.

The bootstrap supportive files add in the web application page for the bootstrap breakpoint.

The bootstrap breakpoint syntax was added in the body section of the page.

The media queries add in the style tag of the head section in the html page.

@media only screen and (min-width:600px) {.col-sm-2 {background: red ;}} @media only screen and (min-width: 768px) { .col-md-2 {background: aqua ;} }

Examples of Bootstrap Breakpoints

Let us discuss examples of Bootstrap Breakpoints.

Example #1: Using media queries

Code:

@media only screen and (min-width:600px) {.col-2 {background: red;}} @media only screen and (min-width: 768px) { .col-2 {background: aqua;} } @media only screen and (min-width: 992px) { .col-2 {background: yellow;} } @media only screen and (min-width: 1200px) { .col-2 {background:orange;} } .col-2{ border:1px solid black; }

Output:

The small breakpoint with media query output is below.

The medium breakpoint with media query output is below.

The large breakpoint with media query output is below.

Example #2: Using column

Code:

.col-sm-2{ border:1px solid black; background-color:lightgrey; } .col-md-2{ border:1px solid black; background-color:orange; } .col-lg-2{ border:1px solid black; background-color:yellow; } .col-xl-2{ border:1px solid black; background-color:aqua; }

Output:

The small breakpoint output is below.

The medium breakpoint and large breakpoint output are below.

The extra-large breakpoint output is below.

Example #3: Combination of more than one breakpoint

Code:

.col-sm-2{ border:1px solid black; background-color: aqua; } .col-lg-2{ border:1px solid black; background-color: yellow; }

Output:

Description

The small breakpoint is useful for mobile and phone devices.

The medium breakpoint is used for tablets and mini laptops.

The large breakpoint is used for desktop and laptop devices.

Conclusion

It makes web applications user-friendly as per the availability of the screen device. It mostly works for mobile, laptop, desktop, and tablet devices.

10 Online Jobs That You Can Do From Home

Many organizations are rapidly shifting to the ‘Work from Home’ culture. As per experts, the culture of work from home and remote login is going to be highly accepted and adapted in the coming times. The challenging times posed by the coronavirus pandemic have impacted businesses massively and affected almost all professions. Fortunately, several jobs can be accomplished remotely by working from home to earn well. So, let’s look at some viable work from home jobs through which you can continue making money even while staying at your house.

Online jobs that you can do from Home

If you wish to earn by working from home, here is a list of some tech-related online jobs you can do:

Social media manager

Medical Transcription

Cloud Designer

Web Designer

Software Developer

Freelance Technical Writer

SEO and Review Writers

Mobile App Developer

Online Training and Tutoring

Digital Marketer.

Let’s look at each of these job profiles in detail.

1] Social Media Manager

Social media platforms have become one of the most prominent media of marketing and brand promotion wherein the biggest of the brands are leveraging the massive reach of the channels like Facebook, TikTok, LinkedIn, Twitter, and Instagram. Companies are tapping in the opportunity by prudently handling their social media campaigns to influence their potential buyers. Since not many businesses have a dedicated team to channelize their social media presence via accounts, many freelancers have taken up the role of social media managers and work remotely.

In the coronavirus pandemic, digital marketing companies are also looking for social media managers who can help them efficiently plan, design, and implement their social media campaigns through their accounts on various platforms. This is a relatively new role, however, youngsters and people who have a good hold on writing catchy posts and understand the nerve of viral media campaigns, love socializing online and are interactive can make successful social media managers. If you have the right presence on social media, then in the coronavirus lockdown, you can earn good money handling social media accounts of others.

Download: Microsoft’s Essential guide to working from home.

2] Medical Transcription

Medical Transcriptionist typically works from the hospitals and physician’s office; however, with the increase in technological aids that enable people to connect remotely, most of the transcriptionists are now working from home. The Work of medical transcription includes efficiently transcribing the dictation by doctors. The healthcare professionals and people who have completed a medical transcriptionist program can take up this job from home.

3] Cloud Designer

Cloud-based applications are much in demand these days as the technology is fast growing. If you are a well-versed cloud designer and architect, then you can earn well by working from home and providing cloud solutions to various companies. Many companies are looking for efficient cloud developers who can help them manage and develop cloud apps. Coronavirus lockdown has propelled companies to allow remote working, and the demand for freelancers has increased.

Read: Free Windows Software to help you Work from Home.

4] Web Designer

Everyone needs a website in today’s times. In the pandemic situation, when physical stores are almost shut down, an online presence is mandatory. In such a case, every big and small business is looking for someone to help build and manage their website. There are many self-employed web developers in the present times who work remotely as per their convenience and earn an impressive salary. Web developers and designers cater to the diverse needs of their customers from website design, administration, and development.

5] Software Developer

Read: Security tips to protect data when working remotely.

6] Freelance Technical Writer

Help Manuals, Online Guide, website content, blogs and social media posts, how-to articles, product reviews, there are so many places where clients need skilled and creative content writers to provide them quality content for websites like chúng tôi There is a massive demand for content writers in times of search marketing and digital marketing. If you are a skilled and quality writer, you can earn a considerable amount of money working from your home without any hassles. Content writing is one job that has been performed from home for the longest time. The writers can get great value for their content by using the right techniques and developing content that is informative and unique. Brands are ready to pay impressively to the writers who provide engaging content that can drive traffic to their websites.

7] SEO and Review Writers

SEO driven content is high in demand these days, as most of the businesses are done online based on search marketing. People are now investing highly in quality content instead of bulk content. You can groom yourself as a niche writer and reach out to potential clients easily on various forums and portals. On websites like chúng tôi Upwork, and chúng tôi you can build a strong portfolio and bid for freelance projects that are high paying. You can earn up to 1500 dollars per article, in case you make an influential profile as a writer. Freelance writing s one of the most well paying and feasible jobs, which can be done from home.

8] Mobile App Developer

In the current pandemic situation hen, people are stuck at home and have extra time at hand; the use of mobile apps has increased massively. Mobile phone games, dating apps, chat apps, and shopping apps are massively used as they are quick and handy. As an Android or iOS app developer, you can efficiently work from home and build apps for various clients paying heavily. If you are a trained or skilled App Developer, you can earn more than a well paying regular job. It is the most viable Work from home options for developers and tech professionals.

9] Online Training and Tutoring

Whether you are a Tableau trainer or a skilled Yoga trainer, whether you provide art classes or just educate people on culinary skills, online coaching and training is something that can help you earn a fair amount of money while enjoying your creative skills. During the current Coronavirus, pandemic people are restricted to stay at home. You can provide coaching classes to children on various subjects or provide training to professionals on multiple technologies. You, training online, probably the best Work from home job that can bring you the most value for your time. From providing makeup tutorials and cooking classes to ladies to taking online Zumba classes for fitness enthusiasts, online coaching is excellent Work from home option in the coronavirus pandemic.

10] Digital Marketer

Digital marketing is all about handling the digital platforms and providing the right solutions to the clients on the various platforms, from email to website to social media. With the proper knowledge of Social media, Search Engine Optimization, and website administration, along with the algorithms of various social media platforms, you can attract the right clients who pay well. The job can be done entirely from home.

Final words

Disruptions are likely to change the face of workplaces forever. With remote working being the trend of the next generations, the above jobs can help professionals build strong portfolios and earn well.

What Are The Different Types Of Classes In Java?

Types of classes in Java Concrete class

Any normal class which does not have any abstract method or a class that has an implementation of all the methods of its parent class or interface and its own methods is a concrete class.

Example

Live Demo

public class Concrete { static int product(int a, int b) { return a * b; } public static void main(String args[]) { int p = product(2, 3); System.out.println("Product: " + p); } } Output Product: 6 Abstract class

A class declared with abstract keyword and have zero or more abstract methods are known as abstract class. The abstract classes are incomplete classes, therefore, to use we strictly need to extend the abstract classes to a concrete class.

Example

Live Demo

abstract class Animal { public abstract void sound(); } public class Dog extends Animal { public void sound() { System.out.println("Woof"); } public static void main(String args[]) { Animal a = new Dog(); a.sound(); } } Output Woof Final class

A class declared with the final keyword is a final class and it cannot be extended by another class, for example, java.lang.System class.

Example

Live Demo

final class BaseClass { void Display() { System.out.print("This is Display() method of BaseClass."); } } class DerivedClass extends BaseClass { void Display() { System.out.print("This is Display() method of DerivedClass."); } } public class FinalClassDemo { public static void main(String[] arg) { DerivedClass d = new DerivedClass(); d.Display(); } }

In the above example, DerivedClass extends BaseClass(final), we can’t extend a final class, so compiler will throw an error. The above program doesn’t execute.

Output cannot inherit from final BaseClass Compile-time error - can't inherit final class POJO class

A class that contains only private variables and setter and getter methods to use those variables is called POJO (Plain Old Java Object) class. It is a fully encapsulated class.

Example

Live Demo

class POJO { private int value=100; public int getValue() { return value; } public void setValue(int value) { this.value = value; } } public class Test { public static void main(String args[]){ POJO p = new POJO(); System.out.println(p.getValue()); } } Output 100 Static class

Static classes are nested classes means a class declared within another class as a static member is called a static class.

Example

Live Demo

import java.util.Scanner; class staticclasses { static int s; static void met(int a, int b) { System.out.println("static method to calculate sum"); s = a + b; System.out.println(a + "+" + b); } static class MyNestedClass { static { System.out.println("static block inside a static class"); } public void disp() { int c, d; Scanner sc = new Scanner(System.in); System.out.println("Enter two values"); c = sc.nextInt(); d = sc.nextInt(); met(c, d); System.out.println("Sum of two numbers-" + s); } } } public class Test { public static void main(String args[]) { staticclasses.MyNestedClass mnc = new staticclasses.MyNestedClass(); mnc.disp(); } } Output static block inside a static class Enter two values 10 20 static method to calculate sum 10+20 Sum of two numbers-30 Inner Class

A class declared within another class or method is called an inner class.

Example

Live Demo

public class OuterClass { public static void main(String[] args) { System.out.println("Outer"); } class InnerClass { public void inner_print() { System.out.println("Inner"); } } } Output Outer

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