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Java methods, java classes, java file handling, java how to, java reference, java examples, java operators.

Operators are used to perform operations on variables and values.

In the example below, we use the + operator to add together two values:

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Although the + operator is often used to add together two values, like in the example above, it can also be used to add together a variable and a value, or a variable and another variable:

Java divides the operators into the following groups:

• Arithmetic operators
• Assignment operators
• Comparison operators
• Logical operators
• Bitwise operators

Arithmetic Operators

Arithmetic operators are used to perform common mathematical operations.

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Java Assignment Operators

Assignment operators are used to assign values to variables.

In the example below, we use the assignment operator ( = ) to assign the value 10 to a variable called x :

The addition assignment operator ( += ) adds a value to a variable:

A list of all assignment operators:

Java Comparison Operators

Comparison operators are used to compare two values (or variables). This is important in programming, because it helps us to find answers and make decisions.

The return value of a comparison is either true or false . These values are known as Boolean values , and you will learn more about them in the Booleans and If..Else chapter.

In the following example, we use the greater than operator ( > ) to find out if 5 is greater than 3:

Java Logical Operators

You can also test for true or false values with logical operators.

Logical operators are used to determine the logic between variables or values:

Java Bitwise Operators

Bitwise operators are used to perform binary logic with the bits of an integer or long integer.

Note: The Bitwise examples above use 4-bit unsigned examples, but Java uses 32-bit signed integers and 64-bit signed long integers. Because of this, in Java, ~5 will not return 10. It will return -6. ~00000000000000000000000000000101 will return 11111111111111111111111111111010

In Java, 9 >> 1 will not return 12. It will return 4. 00000000000000000000000000001001 >> 1 will return 00000000000000000000000000000100

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Multiply 10 with 5 , and print the result.

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The Java Tutorials have been written for JDK 8. Examples and practices described in this page don't take advantage of improvements introduced in later releases and might use technology no longer available. See Java Language Changes for a summary of updated language features in Java SE 9 and subsequent releases. See JDK Release Notes for information about new features, enhancements, and removed or deprecated options for all JDK releases.

Now that you've learned how to declare and initialize variables, you probably want to know how to do something with them. Learning the operators of the Java programming language is a good place to start. Operators are special symbols that perform specific operations on one, two, or three operands , and then return a result.

As we explore the operators of the Java programming language, it may be helpful for you to know ahead of time which operators have the highest precedence. The operators in the following table are listed according to precedence order. The closer to the top of the table an operator appears, the higher its precedence. Operators with higher precedence are evaluated before operators with relatively lower precedence. Operators on the same line have equal precedence. When operators of equal precedence appear in the same expression, a rule must govern which is evaluated first. All binary operators except for the assignment operators are evaluated from left to right; assignment operators are evaluated right to left.

In general-purpose programming, certain operators tend to appear more frequently than others; for example, the assignment operator " = " is far more common than the unsigned right shift operator " >>> ". With that in mind, the following discussion focuses first on the operators that you're most likely to use on a regular basis, and ends focusing on those that are less common. Each discussion is accompanied by sample code that you can compile and run. Studying its output will help reinforce what you've just learned.

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How to set JAVA_HOME environment variable on Windows 10

Here, the home of JDK is under C:\Program Files\Java\jdk1.80_201 . The version number may vary, depending on the JDK you installed.

The System Properties dialog appears, click the button Environment Variables .

Then you will see this dialog:

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The Essential Guide to Take-home Coding Challenges

by Jane Philipps

Introduction

Hi, I’m Jane. I wrote this guide because I want to help others with non-traditional backgrounds succeed on take-home coding challenges. Please read it, take notes, apply the material, and let me know about your results. You can reach me via email at [email protected] .

This guide is intended for anyone who has received a take-home coding challenge as part of the technical interview process and wants to attack it in the best way. This Essential Guide is a distilled version of a longer Ultimate Guide to Take-home Coding Challenges , which goes into much more detail and walks through an example challenge from start to finish.

So, if you’ve just received a challenge and are anxious to get started, start here, and then check out the full guide when you want to learn the material more deeply. Good luck!

Mistakes to avoid making when working on a take-home coding challenge

There are several mistakes you can make with take-home challenges. Some of these are small mistakes that are easily correctable, while others will leave you frustrated and unable to finish your assignment. I want to address these mistakes first, so when you’re given a take-home challenge, you know exactly what not to do.

Here are four mistakes you can make:

1. Time management and scope creep

2. Trying to learn too many new things at once

3. Making too many assumptions

4. Starting to code right away

Let’s look at each one in detail.

Time estimation is one of the hardest problems in programming, and even experienced engineers struggle with it. This plays into take-home challenges in a couple of ways.

First, some challenges come with “estimated time.” I usually ignore these, as they are rarely based in reality. Second, some challenges are open-ended. Many people, especially newer developers, will want to add tons of features because they think it will be impressive. Actually, it’s more impressive if you keep the scope relatively narrow, but finish everything you set out to do. In this situation, it’s better to do one thing really well than to do a million things poorly.

A good question would be: what counts as “going above and beyond” versus what counts as “scope creep?” My rule of thumb would be if your idea accomplishes or improves on the requirements of the assignment, that is likely a good idea, but if it seems tangentially related or “just cool,” it’s probably scope creep. But, as I describe later, always make it work first.

While a take-home coding challenge can be an excellent opportunity for learning, it is possible to take on too much learning. If you’re given a challenge where you must use a specific language or framework, but you’re not familiar with it, don’t add additional complexity by setting out to learn something new on top of that. For example, if you are using a new backend framework for a full stack app, stick to a frontend framework that you’re already comfortable with.

If your challenge is language/framework agnostic, but you’ve been itching to try out some new technology, pick JUST ONE to experiment with. Between reading the docs, getting your challenge properly set up, and getting used to any new syntax, you will have your hands full. Even learning one thing will eat up a lot of your time, so I would highly suggest limiting yourself to one new piece of technology per challenge.

As a developer, if you make too many assumptions, you are bound to build an application where the requirements are off, or the user experience is bad. When given a set of requirements for a take-home challenge, ALWAYS take the time to review the requirements and make sure you fully understand them. And, if you have any questions at all, always ask.

First, this shows that you are willing to ask for help when you don’t quite understand something, an important trait for a developer to demonstrate. Second, many companies will intentionally give you product requirements that are vague or not fully fleshed out in order to see how you react in these situations. They are actually testing your ability to make sense of requirements that may have gaps in them.

So, when in doubt, ask questions. Asking questions is also a signal that you are engaged and interested in the challenge.

One last mistake you can make is to jump in and start coding right away. I guarantee if you do this, you will regret it. Why? Two reasons:

Without proper planning, your code will suffer

Without first getting organized and making sure you fully understand ALL of the technical requirements, you may find yourself missing edge cases or rewriting parts of the functionality. I know it seems counter-intuitive, but you will actually SAVE yourself time if you plan ahead.

You will spin your wheels trying to get your app set up properly

Especially for newer developers, initial app setup can be one of the hardest parts of a take-home coding challenge. It’s not something you do every day, so it often takes some research and reading documentation to get reacquainted with the process and ensure you’re going about it in the best way.

So, there you have it — a summary of mistakes to avoid making. You’ll find that a lot of these are also applicable to your day to day work as a developer. In the next section, we’ll dive into further detail on how to get organized before you write a single line of code.

Get organized: how to plan before you write a line of code

Now it’s time to get to work! But, it’s NOT time to write any code YET.

Because, as you’ll see, a lot of the work actually happens before you write a single line of code. This may seem counterintuitive, but again — the more time you spend up front planning, the less time you will spend writing code.

So, now you have your coding challenge in hand and you are ready to get started with the planning process. Here are my six suggested steps:

1. Understand the requirements and ask any questions

2. Identify technical decisions you need to make

3. Technical design & whiteboarding

4. Test plan

5. App setup plan

6. Organize your tasks

First, you need to make sure you completely, absolutely, 100% understand the requirements of the project. If any part of the requirements are unclear, it is up to you to reach out to your contact and ask questions.

Sometimes companies will purposefully make their requirements vague, in order to see how you approach the problem. In these cases, it is always best to ask questions as it shows you are thinking about the problem and not just making assumptions and building an app to a vague spec.

Your next step will be to identify the technical decisions that you need to make. Making a list of all of your technical decisions up front and thinking about them before you’re in the middle of building your app will help you immensely. Not only will it cut down on time figuring things out later, but it will allow you to make big picture decisions up front, as opposed to trying to focus on both the big picture and the small details at the same time.

Now it’s time to plan out the rest of your app. For anything that you need to draw out, now is the perfect time to do that. Thinking through these decisions at the start serves two purposes:

• You’ll be able to reference these drawings and your original plan while you’re building your app. Then if you get stuck at any point, you can always come back to your notes.
• Later, when you are having a discussion with an engineer about your coding challenge, you can use these notes as a reference when they ask you why you made certain design or architecture decisions.

Once you’ve thought through and answered some of the bigger design and architecture questions for your challenge, the next step is research. If you’re planning to use a new technology or something you’re a bit rusty with, use this time to search for documentation and other resources.

Another very important step to take before writing a line of code is developing a test plan. Although you won’t get peer feedback on this test plan, it will help you look at the challenge from a different angle, making sure you’re meeting all of the requirements. By thinking through and writing out a test plan before you start coding, you are able to brainstorm possible edge cases that you should account for in your code and you will use this as a basis for testing your app later.

If you’re starting an app from scratch, figure out if there are any generators you can use to make your app setup easier and faster. Application setup is one of the hardest parts of take-home coding challenges, because it’s something that developers do rather infrequently. Best practices are always changing, so it’s easy to forget how to do. Also, when setting up an app with a specific combination of technologies for the first time, it can be challenging to get everything configured and working together properly.

If you are not using a generator, reading documentation and finding working examples are the two most important steps you can take. Being able to play with a working example and compare it to your own app will help you if you get stuck.

The last step before you start coding is to break down and organize your tasks. Breaking down your tasks is essential because it will help you stay on track as you’re working on your challenge, and it will give you a game plan for execution. Note that you shouldn’t be a perfectionist here, because there will always be unexpected bumps in the road.

Here is an example task list for a classic Tic Tac Toe app:

Some of these tasks can be broken down even further into smaller steps. For example, in order to implement the Tic Tac Toe gameplay with Javascript, here are some smaller tasks:

3. Writing tests: just do it!

Testing can be overwhelming, because there are so many different types of tests: acceptance tests, integration tests, and unit tests, not to mention test driven development vs. ad hoc testing.

Why should you include tests in your take-home coding challenge? It’s simple: your tests will make your submission shine.

First, adding tests shows that you know or are willing to learn another technology/framework. It also demonstrates that you take ownership of what you’re building, because you are taking responsibility to make sure it works. Testing also shows that you’ve considered edge cases, which many newer engineers often overlook.

Many companies take tests very seriously. Some will not tell you that they expect tests for your coding challenge, but will automatically reject you if you leave them out. Therefore, my recommendation is to write tests no matter what when given a take-home challenge. Not only will it make you a better developer, but for companies that were not expecting tests, you will stand out even more!

How do you go about writing a tests? First, create a plan. Here’s my 80/20 suggestion for how to come up with the right test cases:

1. Test the happy path

For the classic Tic Tac Toe example, the happy path is starting with an empty board and playing a game until X wins.

2. Think about variations on the happy path

A variation on the happy path would be if O wins, or if there is a tie game.

3. Think of edge cases

An edge case would be if a player tries to play a move in the same square more than once.

4. Test anything that is complex

The algorithm to find the winner is the most complex part of this example.

Here’s a sample test plan:

So, now it’s your turn. Think about your app and, as a baseline, think of 5–10 tests that you can write.

4. Make it work, then make it pretty, then make it fast

The title of this section sums it up pretty well, but when you’re working on building out your challenge, you should follow these 3 steps IN THIS ORDER:

1. Make it work

2. Make it pretty

3. Make it fast

When you’re given a take-home coding challenge, no matter what you do, the most crucial part of the challenge is to make it work. If you submit an app that has a nice UI, that will not matter if your app does not work or meet all of the requirements. Because building features to spec is a key aspect of your future job as a developer, you first and foremost need to focus on the functionality of your app and prioritize that above all else.

This is also key if you are low on or run out of time. Coding challenges can be a lot of work, especially if you want to go above and beyond to ensure that you make it to the next interview round. But, I can guarantee that you will not make it to the next round if your app doesn’t function properly or is missing some key components.

So, if you’re building a front-end app, this means focusing on making it work first, and styling/UI last. If you are building a back-end or full-stack app, focus on making it work before trying to refactor your code into the most elegant solution, and only then worry about optimization.

Even if you end up without any time to go back and refactor your code or style your UI, having a working app to present is more important. You can always talk to the interviewer about how you would improve your app, and refactoring some of your code might even be part of the next round of interviewing.

Make it pretty has two interpretations here. One is making the code pretty, and the other is making the UI pretty. Making the code pretty can be done in several ways. First, ensure indentation is consistent and your code is readable. Second, if you got something to work in a quick, hacky way, think about how you can refactor it to be a more elegant solution without overcomplicating it.

If you’re doing a front-end or full-stack challenge, you can also make the UI pretty as part of this step. Whether you use a library or write your own custom styles for your app, making the UI look good will show your interviewer that you’re taking the user experience into consideration when building a feature.

For some more front-end-focused challenges, you’ll be given a specific mockup to match. In these cases, making sure you’re detail oriented down to the last pixel is incredibly important. Part of your role may involve translating mockups from designers into user interfaces, so companies want to get a sense of how you approach those types of tasks.

Once you’ve made your app work, made it pretty (in the code, UI, or both), it may be time to make it fast! This is where understanding performance and BigO notation comes in handy.

You should take a look at your code and see if there are any areas where increasing the scale might be an issue. For example, are you using a double for loop somewhere? What if the arrays you’re looping over become super long?

If you think about these kinds of edge cases, you can then come up with plan to improve your code. Taking something that would have been running O(n) and making it O(1) will show that you’re thinking about performance when you’re building things.

How to make your code shine

When given a take-home coding challenge, many people think about how to build an app that works, but stop there. In this section, I’ll go over things an engineer reviewing your code will look for, so you can take your challenge to the next level and make your code shine.

When an engineer is reviewing your code, they will look for several different things. They will likely try to run your app to play around with it and see it working. After that, they will delve into the actual code, looking to see how you organized your app architecture and reading code in individual files.

There are several things you can do to make your code stand out. You want your code to be:

• Easy to follow
• Well organized
• Clean (properly indented, free of syntax errors and unnecessary whitespace)

These are the basics that don’t take much effort outside of mindfulness to get right. Now let’s talk about three of the more involved code style considerations:

1. How to name things

2. How to use comments effectively

3. How to format your code as you write it

Naming is one of the hardest problems in programming. One of the keys to naming things is to make sure you’re naming them in a way that another developer who is unfamiliar with the code can easily jump in and understand.

For functions, think about what exactly the function is doing. Is the function checking whether there is a winner on a row of a Tic Tac Toe board? Then a great name would be checkRow . Is your function handling a click on a square of the Tic Tac Toe board? Then a great name would be handleClick .

One quick tip: if you find yourself losing your flow because you keep stopping to think of the perfect name, split your process into two steps. First, write working code with any names (like foo , bar , and baz ). Then take a second pass through to improve them.

Adding comments can be a great way to capture what you were thinking at the time you wrote a specific piece of code. This can be useful to you, or anyone else who comes across your code in the future and needs to understand it, tweak it, or rewrite it.

Think of comments as adding clarity to your code. But, pay attention, because there is such a thing as too many comments.

Here is where you most likely do not need comments:

• When you declare a variable
• When you declare a function

Don’t do this:

The variable or function name should be enough to explain exactly what it does. If you need a comment to explain it, then you need to give it a better name!

Here are some examples of where comments can be useful:

• Technically tricky lines of code

First, let’s talk about HTML. Markup seems pretty self-explanatory, right? So, why would you need comments? Let’s say you have a really long HTML file with A LOT of <d iv>s. Comments can be a good way to signal which </div> tags close which sections.

In CSS, comments are a good way to divide up your styles if you have a lot of styles in one file. This way, when you come back to the code later and want to make a change, it’s easier to find the styles for that one section you need to update.

Comments in CSS are also very useful whenever you are hard-coding any math or adding an arbitrary number of pixels as margin, padding, and so on. Comments can be useful to explain things like this that are specific to your application.

One of the best uses for comments is when you’ve written code that is technically difficult or just not intuitive. You should always strive for simple, understandable code as much as possible. However, sometimes you will have confusing code — maybe you’ve chained a bunch of methods together or are using a complex regular expression — and it would help to explain what is happening in a comment.

You are almost done learning how to make your code shine! Just one more step.

I’m a STICKLER about formatting when it comes to code. And, it’s not just me. You’ll find that the best engineers also care about well-formatted, clean code. Why? First, it’s much easier to read! Coding can be really challenging, so when code is easier to read, it makes our jobs as developers that much easier. Also, writing clean code sends a message to your interviewers that you take pride in the craft of writing code, and for many teams, this is a big deal.

So, how do you make sure the code style sticklers will approve of your code? There are a few simple tricks you can use as you’re working through your coding challenge to ensure the end result comes out clean and you don’t have to spend time at the end reformatting everything.

• Choose tabs or spaces and be consistent across your entire application (i.e. no 2 spaces in some files, 4 spaces in others)
• Indent your code properly as you go so that it stays readable and isn’t all over the place
• Get rid of trailing whitespace! Whitespace can sometimes wreck havoc, so it’s best to just get rid of it as you write your code.
• Keep your syntax consistent throughout your entire app. If you’re using a linter, this will be easier, but requires setting one up. If you don’t have time to set one up, pay attention. Don’t use ES5 in some places in your app and ES6 in others. Pick one and stick with it!
• Remove unnecessary logging and debug statements when you’re done using them! Unless logging is part of your application, you’ll want to remove any temporary statements you were using while building your app.
• Always leave a newline at the end of every file

That’s it! It’s pretty simple, and once you’re in the habit of doing this, not only will your code be easier for you to read, but it will also be easier for others to read and maintain. Many new developers haven’t been exposed to very much code maintenance, but trust me, when you have to clean up code someone else has written, you will be more thankful if it was neatly organized to start. Pay it forward!

Here’s an example of badly formatted code:

Here’s an example of the same code, but cleanly formatted and MUCH more readable:

How to take your challenge to the next level

Here are 3 ideas for how you can take your coding challenge to the next level:

2. UI/UX design (for front-end or full-stack challenges)

3. Data validation and error handling

Not all coding challenges come with bonuses, but if yours does and your goal is to get a job offer, do them! Why? It’s pretty simple. If you go above and beyond in your coding challenge, it will show that you will go above and beyond once you’re hired at this company. Completing bonus requirements is a high competence trigger for the interviewer.

Some front-end or full-stack challenges will mention UI/UX design as a bonus, but if they don’t, putting in some effort to make the UI look nice and be easy to use will go a long way. You can either go the route of adding your own custom CSS or plugging in a library or two to help make your styling even more painless. If you use a library, just make sure that you understand how it works enough to explain how you’ve used it.

Data validation and error handling are key components in production apps. Adding either one of these (or both!) to your challenge will help make it stand out. Many developers who are new to coding and haven’t worked in a production codebase before don’t have a ton of exposure to either of these, so if you add error handling for edge cases it will show that you thought through a lot of different situations.

How to write an awesome README

You may be done writing code, but you’re not done writing yet — it’s time to write your README.

Why you should include a README

READMEs are incredibly important, both for professional developers and for job seekers working on take-home challenges. Including a README shows that you care about documentation.

Documentation helps spread knowledge across teams and serves as a supplement to your code. Having documentation for your take-home challenge ensures that anyone else (or future you) can jump into your code with a clear understanding of what you’ve built without any guessing games.

Your README is also the KEY to making sure that everyone reviewing your challenge has the most painless experience possible. Finally, your README is a way of proving to your reviewer that you successfully met the requirements of the challenge.

How to write your README

Writing a great README is not hard, and you will stand out a great deal from the other applicants with one. Here are the five sections I’d recommend you include:

1. Installation instructions

2. Discussion of technologies used

3. A section demonstrating that you met the requirements

4. If there are bonuses, a section demonstrating that you met them

5. For algorithms and data structures, time and space complexity

When writing your README, don’t make any assumptions. Write out all of the steps to run your app locally and test them yourself. This includes cloning the repo from Github, running installation commands, and starting up a server. Also, make sure to include versions of software that you are using. This will ensure that the developer reviewing your code has a seamless experience setting up and running your app, and if they do happen to run into any trouble due to versioning, they will have all of the information they need right there in the README.

This section is as simple as it sounds — make a list of all of the technologies you used including frameworks and libraries. If you had to find a library for a specific piece of functionality in your take-home challenge, mention it here and include a link to the docs.

Usually your take-home challenge will come with some sort of requirements spec, so make sure to include a section in your README where you describe the requirements and how you met them. In some cases, you can take the product spec you were given and write a short explanation of how you met each requirement in a list. In other cases, you can simply include a short paragraph explaining how you satisfied the requirements. It’s totally up to you how you do it, just make sure you include it.

Similar to the requirements section above, you’ll want to highlight any bonuses you completed while working on the take-home challenge. If you attempted a bonus, but couldn’t quite get something to work, then the README is also a good place to address that. You can discuss the approach or approaches you tried and what worked or didn’t work.

If you had to write any algorithms or data structures as part of your take-home challenge, it’s helpful to include the space-time complexity of your final algorithm. This can be done in Big O notation.

One final word of advice: write your README in markdown so it looks nice! This will demonstrate that you know (or are willing to learn) another language that will come in handy as a full-time developer.

Here is an example README for a Tic Tac Toe app:

Final steps before you hit send

Now that you’ve written your README, you’re almost ready to hit send! Before you do that, take the time to double check all of your work using the following checklist:

• Re-read the take-home challenge instructions to make sure you didn’t miss any requirements
• Review your app’s code to ensure that it shines
• Run your app’s automated tests and make sure they are all passing
• Test your app manually and make sure everything is working properly
• Test your app installation instructions from your README
• Start an email draft and copy your README into it for convenience
• If requested, make sure to attach a zip file of your code
• Write an email to your contact at the company

Your email can be short and sweet — I always like to highlight something I enjoyed about the challenge or something I learned. Here’s an example:

Note that you should only mention interviewing with other companies or offer deadlines if either is actually the case. I feel you should be honest and candid about your situation and maintain leverage for a potential future compensation negotiation at the same time.

Now, finally, hit send!

I hope this Essential Guide was helpful and you learned something that you can apply to a take-home challenge or in your day-to-day work. If you have any comments, questions, or other feedback, please don’t hesitate to reach out. You can reach me at [email protected] .

Also, if you enjoyed this guide and want to learn more, feel free to sign up for my email list:

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Over the past two decades, Java has grown to become one of the most widely used programming languages in the industry, as it is taught in colleges and universities around the globe. If you are studying computer science, you will need to become proficient in java programming through a college course. This programming language will likely serve as a fundamental tool you will employ in future classes, making it essential that you have a full understanding of how to use it.

Even simple Java homework assignments can provide the extra practice needed to help you gain a more thorough understanding of the language, so it's crucial you get help with your Java programming class when you have questions or feel uncertain about how to approach an assignment. 

At 24HourAnswers, we recognize the importance of Java in the computer science field, and, whatever your stage of study, we have a team of veteran Java developers, experienced software designers and computer scientists ready to help with your Java assignments, or to assist you with your Java programming coursework. 

Get Help With Java Programming Homework

Using our services for Java assignment help gives you access to valuable tools and professional insights that will enhance your learning experience. Because the majority of our team members have received advanced degrees in their respective fields, they understand the volume and content of your coursework. As a result, they also know how to help you succeed and provide Java homework help that you won't find anywhere else. 

Working with our tutors for Java programming assistance gives you the opportunity to:

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• Discover the most effective approaches for Java-related issues.

24HourAnswers Online Java Tutors

We strive to give all students access to our highly qualified tutors to help promote success in demanding courses in college. Our online Java tutors include individuals with advanced degrees in their fields, such as software developers and Java designers themselves. With their experienced and credentialed background, they can provide the Java assignment help you need in current and future college programming courses.

When you work one-on-one with our team of Java tutors, you will:

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Our services are useful for all college students taking Java programming classes. Whether you're just starting to learn Java programming or you want to become more proficient in an advanced course, our professional Java tutors can offer the services you need to achieve your educational goals.

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At 24HourAnswers, our goal is to help you succeed inside the classroom, and we'll help you every step of the way. Schedule your first session with one of our tutors today or submit your Java assignments for homework help.

Java Programming Software

Java is developed using the Oracle Java Development Kit (JDK). The most popular version of the JDK which is typically used for application development and in coursework is Java Standard Edition (SE) version 8. To get started developing Java using the JDK, download JDK 8 here , selecting the version corresponding to your operating system.

After downloading the Java Development Kit (JDK), an integrated development environment (IDE) is used to write code in the Java programming language. There are a number of popular tools which are commonly used for Java software development.

Popular Java IDEs:

• Eclipse: https://www.eclipse.org/downloads/
• NetBeans: https://netbeans.org/
• IntelliJ IDEA: https://www.jetbrains.com/idea/
• BlueJ: https://www.bluej.org/
• DrJava: http://www.drjava.org/
• JCreator: http://www.jcreator.com/
• jGRASP: https://www.jgrasp.org/

Among the options for development environments, Eclipse is the program of choice which is most commonly used for Java program development. Eclipse is an open-source IDE which supports the creation of Java workspaces for more complex Java development projects, and it supports the development and use of plug-ins which extend the core functionality of the program. Download Eclipse now to begin writing programs in Java.

Java source code is organized in classes, in which each class either contains code which can be executed, or contains the definition of a class, which can be referenced and instantiated by another class in the program. Within a program, these classes belong to packages where each package is a grouping of classes that contain a common set of roles, functions, and objectives. Part of becoming a great software developer involves thinking about how best to organize your code. Plan a program out in advance using pseudocode or a skeleton of the overall project. This will help you identify what packages and classes will be needed in the overall program, as well as guiding you to consider how the different parts of the program will depend on and affect each other.

Now that you have the Java Development Kit, the Eclipse integrated development environment, and a program in mind, you have all the tools needed to dive into Java programming. Whether your program is an introductory level Java assignment or a more complicated graduate-level algorithms project, our Java online tutors are ready to assist with your Java programming assignment to help you design and create great software.

Our Java online tutors are available anytime to offer Java programming assignment help or guide your understanding and mastery of your Java programming coursework. For any Java programming challenge—big or small—bring us the question, and we have the answers! 

College Java Programming Homework Help

Since we have tutors in all Java Programming related topics, we can provide a range of different services. Our online Java Programming tutors will:

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Our tutors are just as dedicated to your success in class as you are, so they are available around the clock to assist you with questions, homework, exam preparation and any Java Programming related assignments you need extra help completing.

In addition to gaining access to highly qualified tutors, you'll also strengthen your confidence level in the classroom when you work with us. This newfound confidence will allow you to apply your Java Programming knowledge in future courses and keep your education progressing smoothly.

Because our college Java Programming tutors are fully remote, seeking their help is easy. Rather than spend valuable time trying to find a local Java Programming tutor you can trust, just call on our tutors whenever you need them without any conflicting schedules getting in the way.

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home-assignment

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Aqeeq Technologies Internship Interview Experience | Off- Campus

Company/Startup Name: Aqeeq Technologies

Role: Software Developer Intern (Python/ML)

Duration : 3 months

Round 1: Home-assignment

Applied via Wellfound. Got an assignment with a 7-day deadline. I was asked to keep the Github repo private and invite his github account to my repo.

The assignment was a Python backend assignment where I was supposed to create some APIs, which also involved caching techniques. I had completed the assignment in the time limit.

Technical + Culture fit Interview (1hr) :

This was a 1hr interview conducted on Microsoft Teams. The interviewer had first asked me to introduce myself to him.

He then, asked me to share the screen and explain the assignment which was given (around 10-15 minutes).

The interviewer had asked questions regarding Python, ML, OS.

Below were some of the questions asked :

• What are Dense Layer and Dropout Layer in CNN?
• What are some of the activation functions?
• Difference between Image Classification and Image Segmentation.
• What is grayscaling in OpenCV?
• What are some of the OpenAI model versions?
• What are GPT tokens?
• Explain the working of RAG
• What are Lambda functions in Python?
• What are Semaphores?
• What are some of the scheduling algorithms?
• What is Fragmentation and Paging?

After the technical questions, he asked general questions regarding availability, stipend expectations etc.

This was the final round. After this round, I got selected as an intern.

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