Do I Need To Learn Java Or Javascript?

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"What’s the best programming language to learn ?" is a frequently asked question by beginners who are considering learning to code. It is also a good question. Learning to code is a strenuous activity and a big challenge, so you’ll want to feel like you’ve chosen the right technology to focus on learning.

Technically, there is no correct answer to this question because each language has its own characteristics and use cases. Plus, no matter what language you learn, you will still be able to develop your problem-solving skills and acquire a new skill that can help you accelerate your transition to a career in tech.

That said. . , a common language preferred by beginners is Java. Java, which should not be confused with JavaScript, is a much sought-after skill.

According to 2019 Developer Survey , which Studied over 90,000 developers and their coding practices, Java is the fifth most popular programming language in the world. Also, only on GitHub, which is a developer code sharing site, additionally exists 1.4 million projects using Java.

Why is Java so enthusiastic ? Why is it a good language for beginners? We’ll answer these questions in this article by breaking down the top six reasons why learning to program in Java is a great investment for your future.

What is Java?

Java, originally developed at Sun Microsystems, is a generic programming language used for everything from web development to game development.

Java was created to be a simpler version of C++, which is known to have a steep learning curve and to be difficult to use. The Java language is object oriented, which means that developers can use classes to define the data structure and the methods that can be executed on the data in a program.

Some of the features that make Java so powerful include:

  • The fact the language is platform independent, so you can run from Java code on any device (as long as it is running in the Java virtual machine)
  • Java is simple and secure
  • Java has been designed with performance at the spirit, and therefore the language can be used to develop modern and highly efficient applications
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Now why should you learn Java ? Let’s break down some answers to this question !

# 1: Java is a versatile and flexible language

Although Java may be a few decades old , it was originally conceived in 1995, the language is still known for its versatility and for being applicable in a wide range of contexts.

Today it is used for everything from development to Web applications to the development work of Internet of things devices such as light bulbs and appliances intelligent heating. Furthermore, Java is commonly used to analyze large sets of data, plat - forms of power training, perform calculations math and science, and more.

As if that weren’t enough, Java is also the technology behind An droid, the world’s most popular mobile operating system.

This is so important because once he has learned Java there really is no limit to what you can build outside of your imagination. As you master the basics, you can use your skills to specialize in game development, web development, or another area where Java is widely used.

# 2: Java is not good anywhere

One of the most common concerns voiced by newbies to technology is: will this technology be available in the future ?

This is a common question due to the speed at which the tech industry and. Companies are constantly changing the technologies they work with and developers are always on the lookout for new skills to. to acquire.

But, with Java, you don’t have to worry about your knowledge getting stale within a few years. It has been around for over 20 years now and has since become essential for many businesses and organizations.

In fact, Java is so valuable that it is often taught as a foundational programming language in programs. computer studies. in the world. This is because not only is Java versatile, but it’s also a great platform that you can use to learn more about how computers work more generally.

# 3: Java is preferred by employers.

Whether or not you are interested in pursuing a career in technology now, a factor in choosing which language to learn will likely be employment prospects.

Job prospects for Java developers can be described in one word: promising.

According to Glassdoor data (collected April 23, 2020), there are more than 25,045 jobs in the United States for Java Developers. This shows how many companies are relying on Java to power their organizations.

In addition, Java is also widely used by large organizations. Netflix, Pinterest, Amazon, Spotify, and Instagram are just some of the many tech companies that report using Java for a specific purpose within their organization.

With that in mind, it is clear that learning Java programming could have a significant impact on your career. Businesses large and small rely on Java for their technical needs, and knowing how to program in Java could help you enter a technology career .

# 4: Java has a community of support

While we can’t be sure how many people can program in Java, many estimates cite millions. Regardless, it is clear that Java has a large community of loyal developers using the technology.

Since there are so many people and businesses that depend on Java, there is a huge body of resources. can use to learn programming in java. From online courses to comprehensive programming bootcamps, you should have no problem finding a learning resource that matches your unique needs and learning style.

Need to be more convincing ? Here are some statistics to show the size of the Java community:

# 5: Java is suitable for beginners

The Java language was built on the principles of C and C++, but in the spirit of simplicity. As a result, the developer’s experience for Java programming is significantly smoother than that of many other programming languages.

Also, since Java is an object oriented programming language, it is easy to maintain and modify existing code and add new code to projects. Object-oriented programming also makes your code more scalable, so that your code becomes more complex, you shouldn’t have a problem dealing with that over time.

The only downside to Java is that its syntax can be quite rigid, but this is often seen as a good thing, as it encourages developers to be extra careful when writing code.

# 6: Java developers earn impressive salaries

So, now we know that Java is a favorite of developers and employers. But how are the salaries of Java developers ?

According to Glassdoor, the average Java developer in the US earns $ 79,137 . Junior Java developers also report an average goal base salary $ 67,277 . (This data was collected on April 23, 2020.)

Reflecting on these numbers, one thing is clear: Companies are willing to pay dearly for talented Java developers.

Learning Java is a Child’s Play

We discussed earlier that there is no "right" language code to learn, and this is still true. But if you are trying to learn programming and don’t know what language to learn, Java is definitely worth thinking about.

Java is known for its steep learning curve which makes it an excellent language to learn. for anyone, even if you have no programming experience. In addition, Java has a strong community of developers who can help you if you have a question that you cannot find an answer to.

Learning Java can also have a positive impact on your career. Java developers are not only in high demand, they are well paid for their work. And, as a bonus, Java is used in so many different contexts that your skills could help you pursue a number of careers in tech, from game development to software engineering.

If you’re looking for help Getting started, check out the Python.Engineering Intro to Java blog series. This series covers some of the main technical topics you need to know to become a Java master.

Do I Need To Learn Java Or Javascript? __del__: Questions

__del__

How can I make a time delay in Python?

5 answers

I would like to know how to put a time delay in a Python script.

2973

Answer #1

import time
time.sleep(5)   # Delays for 5 seconds. You can also use a float value.

Here is another example where something is run approximately once a minute:

import time
while True:
    print("This prints once a minute.")
    time.sleep(60) # Delay for 1 minute (60 seconds).

2973

Answer #2

You can use the sleep() function in the time module. It can take a float argument for sub-second resolution.

from time import sleep
sleep(0.1) # Time in seconds

__del__

How to delete a file or folder in Python?

5 answers

How do I delete a file or folder in Python?

2639

Answer #1


Path objects from the Python 3.4+ pathlib module also expose these instance methods:

Do I Need To Learn Java Or Javascript? around: Questions

around

Removing white space around a saved image in matplotlib

2 answers

I need to take an image and save it after some process. The figure looks fine when I display it, but after saving the figure, I got some white space around the saved image. I have tried the "tight" option for savefig method, did not work either. The code:

  import matplotlib.image as mpimg
  import matplotlib.pyplot as plt

  fig = plt.figure(1)
  img = mpimg.imread(path)
  plt.imshow(img)
  ax=fig.add_subplot(1,1,1)

  extent = ax.get_window_extent().transformed(fig.dpi_scale_trans.inverted())
  plt.savefig("1.png", bbox_inches=extent)

  plt.axis("off") 
  plt.show()

I am trying to draw a basic graph by using NetworkX on a figure and save it. I realized that without a graph it works, but when added a graph I get white space around the saved image;

import matplotlib.image as mpimg
import matplotlib.pyplot as plt
import networkx as nx

G = nx.Graph()
G.add_node(1)
G.add_node(2)
G.add_node(3)
G.add_edge(1,3)
G.add_edge(1,2)
pos = {1:[100,120], 2:[200,300], 3:[50,75]}

fig = plt.figure(1)
img = mpimg.imread("image.jpg")
plt.imshow(img)
ax=fig.add_subplot(1,1,1)

nx.draw(G, pos=pos)

extent = ax.get_window_extent().transformed(fig.dpi_scale_trans.inverted())
plt.savefig("1.png", bbox_inches = extent)

plt.axis("off") 
plt.show()
228

Answer #1

You can remove the white space padding by setting bbox_inches="tight" in savefig:

plt.savefig("test.png",bbox_inches="tight")

You"ll have to put the argument to bbox_inches as a string, perhaps this is why it didn"t work earlier for you.


Possible duplicates:

Matplotlib plots: removing axis, legends and white spaces

How to set the margins for a matplotlib figure?

Reduce left and right margins in matplotlib plot

228

Answer #2

I cannot claim I know exactly why or how my “solution” works, but this is what I had to do when I wanted to plot the outline of a couple of aerofoil sections — without white margins — to a PDF file. (Note that I used matplotlib inside an IPython notebook, with the -pylab flag.)

plt.gca().set_axis_off()
plt.subplots_adjust(top = 1, bottom = 0, right = 1, left = 0, 
            hspace = 0, wspace = 0)
plt.margins(0,0)
plt.gca().xaxis.set_major_locator(plt.NullLocator())
plt.gca().yaxis.set_major_locator(plt.NullLocator())
plt.savefig("filename.pdf", bbox_inches = "tight",
    pad_inches = 0)

I have tried to deactivate different parts of this, but this always lead to a white margin somewhere. You may even have modify this to keep fat lines near the limits of the figure from being shaved by the lack of margins.

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