The era in which the Java programming language was the trend is now far behind us. Programmers today are inundated with trendy programming languages ​​such as Go, Python, Ruby, et cetera. In addition, programming languages ​​are sprouting like mushrooms, making Java seem like a remnant of web 1.0. But nothing is less true. Java is still one of the most widely used programming languages ​​in the world. The programming language is continuously being developed, so that it continues to meet the requirements of our society. So you don’t have to worry about the job opportunities as a Java programmer.

Java programming language

In 1995, Sun Microsystems (now part of Oracle ) introduced the Java programming language. Fun fact: the programming language owes its name to the many cups of coffee that the programmers drank. The programming language has become indispensable: many applications and websites can no longer do without it.

Java is an object-oriented and platform-dependent programming language. Object-oriented refers to object-oriented programming. Files and data are considered as objects that can only be controlled by the programmer. So the programmer gives commands to objects in the dataset. During object-oriented programming you structure programs so that you can maintain and reuse objects from the data. Therefore – from a technical perspective – you would not be able to implement new applications with Java.

A cross-platform programming language

Java is also platform independent. This means that the programming language can be used on almost any device. This is why Java is also referred to as a multiplatform. The difference between multiplatforms and classical programming languages ​​concerns this (in)dependence. In classical programming languages, code is automatically converted into code that a computer understands. This is easy, as there is no need for an intermediary that makes unreadable code readable. In other words, compile. This is not necessary with classical programming languages, as this is an automatic process. A disadvantage of this is that the code is readable and works for one specific system, such as Microsoft Windows. The code will not work on systems such as Apple or Linux. You do not have this problem with multiplatforms such as Java. The written code is also compiled by default in this case. The result of this compilation is – in contrast to a classical programming language – a byte language. This is a machine language that can be understood by any system.

The applications of Java

Sun Microsystems’ original goal was to develop a programming language for home appliances, such as televisions and refrigerators. However, the early years of Java were not easy. With the emergence of the WorldWideWeb and its popularity, Sun Microsystems turned around. ‘Our programming language could well be used in a web environment’, was the prevailing thought. No sooner said than done. In 2019, programmers mainly use Java to develop web applications. They also use the programming language for mobile apps and video games. So-called Java applets are popular within websites. These are small programs written within Java. The applets are embedded in a web page. The purpose of applets is to extend the capabilities of a web page.

And what about JavaScript?

Java and JavaScript may have almost the same name, but in fact the two programming languages ​​have few similarities. Here are a few differences:

  1. Java is a programming language; JavaScript is a scripting language. Programming languages ​​allow computers to perform large tasks. Scripting languages ​​are used to perform small, common tasks. JavaScript is therefore a lot more concise.
  2. Java is separate from the web and can run in any virtual machine. JavaScript not; it often supports a larger function within the web.
  3. With Java you have to indicate in advance how the variables you entered are constructed exactly. The programming language contains so -called strong-typed variables. This is not necessary with JavaScript; JavaScript contains weakly-typed variables. Java works with large applications, so typing as a precaution is important. This way you can discover in time whether you are using your data correctly. Specifying data types, however, adds complexity to coding. Therefore, pre-typing is unnecessary with JavaScript, since this scripting language is used for short, smaller applications.