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Programming has been one of the most in-demand and highly-paid skills for the last two decades, and the demand is only increasing. In addition to this demand and popularity in the market, working as a developer also provides a lot of flexibility. You can work from wherever you want and contribute to projects all around the world. All of these reasons make software development highly compatible with the freelancing lifestyle.
That’s why you should examine the market, ask yourself which field interests you and then choose a programming language accordingly. There are more than 700 existing programming languages and numerous fields and industries compatible with the world of programming. We will, however, examine 5 languages that are the most popular in its respective field. This selection will explore the cases in which these particular 5 shine, and let you choose the best for your field of interest. All of them can enable you to work easily as self-employed, and, once mastered, can provide competitive compensation in this rapidly evolving industry.
Influenced by C++, Objective-c and others, Java initially appeared in 1995. Compared to the languages at this time, Java was a simpler solution. It dispensed with memory management, multi-inheritance, and many other complexities to let you focus on business logic. It has been designed to be a general-purpose language and portable to any environment. Java’s versatility has enabled it to be adopted by industries and companies that are looking to develop applications to support their main business operations. Java provides an object-oriented programming language to write well-structured code.
In terms of freelancing, Java experts are the kings of consulting. Large organizations offer very generous compensations for Java expertise, since their work is often related to sensitive projects.
Cases in which Java excels:
Python is the fastest-growing programming language in the world, as it is quick and easy to write. Its simplicity attracts a diverse range of background talents, including a wide usage by mathematicians and scientists. This mix of competences created a new discipline named Data Science. This field uses scientific methods, algorithms, and systems to extract and analyze from different structured data. Along with this, new trends such as machine learning, artificial intelligence and big data require just such diverse skills. Furthermore, the python community is composed of statisticians, scientists and developers, and has been able to serve these new trends well, providing many libraries, making it accessible to the vast majority of developers.
Cases in which Python excels:
Kotlin is a cross-platform and general-purpose programming language. Kotlin is also based on Java Virtual Machine (JVM). The JVM enables a computer to run Java and its derived languages like Kotlin, Scala or Groovy. Being part of the JVM family, Kotlin is fully compatible with any other Java program. Unlike its father, Java, which retains a reputation for its reliability and maturity, Kotlin is a language that evolves fast and integrates all modern programming paradigms. You can envisage Kotlin as a futuristic version of Java.
On 7 May 2019, Google announced that Kotlin is now its preferred language for Android. Since October 2017, Kotlin has been included as an alternative to Java in Android Studio.
Kotlin has also been adopted widely by enterprise application development. The most java popular web framework, Spring, has introduced Kotlin in its 5.0 version.
From the standpoint of today’s freelancer, Kotlin provides you with a solution to write an end-to-end mobile application. From the API to the mobile view, you can write everything with this modern language.
Cases in which Kotlin excels:
Swift is also a general-purpose language. It is mainly used to write native iOS applications. Swift is mainly designed to work with the Cocoa framework. This language uses the Objective-C runtime environment which allows C, Objective-C, C++ and Swift code to run in one single program.
For a freelancer, swift is the best language in which to write iOS and Mac applications. You need, however, to be sure that you want to specialize in the Apple product. One known drawback of Apple is that we often feel locked down to their tech ecosystem.
Cases in which Swift excels: