IT is not difficult to find that under the influence of Internet +, China’s Internet industry has entered a stage of rapid development in recent years, and IT has also become a hot, highly sought after and concerned industry. In the global cloud computing and mobile Internet industry environment, why Java engineers will be so popular?

▶Java300 set _ A zero-base Java tutorial for getting started

Many students will feel some confusion when they just know IT and contact Java:

  • What can I do with Java?
  • What are my job prospects after learning Java?
  • If I learn Java in the future, what career direction should I choose?
  • What are the differences between different development languages? What are the advantages of Java?
  • What are the differences between learning Java and big data? What’s the difference between the future employment direction?

So, for those of you who want to enter the IT industry, here are some questions:

First, how to choose so many development languages?

There are so many development languages, Java, PHP, Python, C++, C, Golang, JavaScript(JS), object-C, SWfit, Node and so on, how should I choose?

Before answering this question, let’s classify the languages:

The back-end

  • JAVA (the mainstream programming language for Internet companies and the mainstream development language for big data development)
  • PHP (also used a lot)
  • C++ (more games)
  • Python (artificial intelligence, machine learning), C (communications, like Huawei), Golang, etc.

Big data

  • Java (Java is the basic programming language for big data)
  • Scala (you can think of Scala as the son of Java, so similar to Java that development in Scala is much more concise than development in Java)
  • Python
  • R, Matlab and so on

As you can see, Java is the most mainstream development language!

The front end

  • WEB front-end (PC/H5/ small program /Native) : Html, CSS, JavaScript, NodeJS, front-end popular framework React, Vue…
  • IOS: object-c, swfit
  • Android: Java

As we can see, Java is the most popular among Internet companies and is in demand by the most people

It’s not hard to decide which language to use now, since Java is widely available and the wages are definitely affordable.

What can I learn Java?

By the time you answer this question, you should have some background in mind.

Java is the mainstream language for the back-end development of Internet companies, and the mainstream language is used on the server side. There are many positions, considerable prospects for promotion, high concurrency, high performance, and tens of millions of traffic are not problems.

Java is a language, combine HTML, CSS, JavaScript, and you can be a Web full-stack engineer; With Android, you can become an APP developer.

Java can make you a big data engineer, but with the language base, you still need to learn Hadoop, HDFS, Hive, Spark, Flink, Storm, sparkStreaming, hbase, etc. Like, you know English, you have to learn how to write, learn the meaning behind the words.

3. How to choose a career direction after learning Java?

1. Android development

Android is the world’s largest smartphone operating system, with global smartphone shipments reaching 375 million units in the third quarter of 2016, according to the latest research report from Strategy Analytics. The Android operating system captured a record 88 per cent of the global market, squeezing Apple’s iOS and other platforms. The main language for Android applications is Java.

Android has only been in the public eye since 2010. In recent years, it has grown rapidly, but the accumulation of talent has not kept pace, which is why Android developers have a high salary and are hard to hire.

2. Web development

There are many Web development languages. Java is one of them. Java has great advantages in developing large, high-access, high-concurrency, clustered websites, such as Qunar, Meituan, etc.

3. Client development

Java client development is mainly for government, public institutions and large enterprises, such as medical, school, OA, mailbox, voting, finance, examination, logistics, mining and other information systems. However, client development is only to provide assistance for the main business of their own enterprises. Under normal circumstances, the client developed is for internal use and rarely pushed to the market. Therefore, in terms of prospects, the first two items obviously have certain advantages.

Can say, Java is everywhere in our life, as long as can leave the Java access to the Internet, the world has billions of devices running the Java, Java is widely used in major areas, from the Internet server application in the electronic commerce to the financial sector, from the android APP to the enterprises and institutions of the OA system, From big data to desktop applications, the list goes on and on.

What are the differences between different development languages? What are the advantages of Java?

Java has been around for more than 20 years, which is testament to its longevity in the industry. After all, Java is a flexible, cross-platform programming language, and enterprises need Java to lay the groundwork for development across all platforms and save on development costs.

And no one wants to write applications in a language that will be obsolete in a few years.

An important factor in choosing a programming language is that it is a good development tool that ensures productivity, and that it runs steadily.

Java has these features.

What are the differences between JAVA and big data?

Java is a brick, the application direction is the house, the house is divided into Chinese courtyard, villa, modern building, big data is one of a variety of house types. Using Java to write a Web back end or for big data is up to you. But the premise is, need a solid Java foundation, otherwise, big data road will not be easy, and other programming languages on the big data road will not be wider than Java choice, employment prospects.

6. How about the salary in different regions?

Salaries for Java engineers vary by region, but overall, Java software engineers are paid more than in other industries.

No matter big data or the back end, or the front end, ultimately pay attention to efforts and strength, do not allow opportunistic, this is the most fair industry, welcome to the pit!

Whether the foundation is not solid without development experience, or have work experience but also want to constantly improve their own developers, for want to develop in this industry, and put into practical efforts, under such a development prospect, the future is unlimited. But this rapid development of the industry can be imagined that the competition is also fierce, inevitable existence of survival of the fittest, if you do not work hard will be behind.

▶Java300 set _ A zero-base Java tutorial for getting started