What is the difference between Java and Scala

Difference between Scala and Java

Both Scala and Java are JVM-based object-oriented programming languages ​​that are used to create a wide variety of applications. Java is a universal programming language that is available everywhere from desktop computers to cell phones, websites to applications, etc. Over the years Java has become one of the most robust and advanced programming languages ​​and remains the most popular choice among the community by developers and programmers around the world. However, in order to move away from a powerful and mature language like Java, there are some fairly solid reasons required. Scala is a modern programming language that offers developers the best of all over the world. It bridges many differences in programming languages. The main reason Scala is so popular is readability. Let's look at some of the obvious differences between Scala and Java.

What is java

Java is the most popular and widely used programming language used by millions of developers worldwide on almost every computer imaginable. Developed by Sun Microsystems, Java is a multi-environment, machine-independent programming language that is secure enough to traverse networks and powerful enough to replace native executable code. The development of the first working version took almost 18 months. The language was originally called "Oak" but was renamed "Java" in 1995. Over time, Java has become the leading platform for web-based applications and web services. These applications use technologies such as Java Web Services, Java Servlet API, and many other open source and commercial Java application servers and frameworks. The development of the Internet has also helped Java get to the forefront of programming.

What is Scala?

Scala is a JVM-based, object-oriented programming language of the latest generation, which has grown in importance as a potential alternative to Java over the years. It's not as popular as Java, at least not yet, but it's definitely not behind either. The term Scala stands for “scalable language” and is so named because it should grow with the increasing demands of its users. It provides developers with the world's best experiences that can be applied to a wide variety of programming tasks, from writing small scripts to building large systems. Best of all, it runs on the standard Java platform and works seamlessly with all Java libraries. It can call any Java code, subdivide any Java class, and implement any Java interface.

Difference between Scala and Java

Basics of Scala and Java

Java is an object-oriented universal language that was developed by James Gosling and some of his colleagues at Sun Microsystems in the early 1990s. It started as a project called "Oak" in 1991 that was later renamed Java. The language borrows much of the syntax of C and C ++, but with fewer low-level functions. Scala is also a general object-oriented language, but more object-oriented than Java. Scala is the brainchild of a German computer scientist and professor of programming methods at EPFL, Martin Odersky.

Readability of Scala and Java

Both Scala and Java are object-oriented languages ​​that run on JVM (Java Virtual Machine). However, Scala integrates both object-oriented and functional programming into a rather short and extraordinary language. Developers have to write multiple lines of code for routine tasks while using Java, while Scala significantly transforms the multiple lines of code into concise and concise code, which makes it easier to spot and fix bugs. However, it has a more complex structure than Java.

Classes and Instances

Scala is more object-oriented than Java because Scala has no static members. Instead there are singleton objects - a class with only one instance. Everything in Scala is an instance of a class, while in Java there are primitives and statics that are outside of the OO model. In addition, all operations on entities are performed via method calls in Scala, while operators in Java are treated differently and are not method calls.

Object and static

In Java, a class can have static methods and data. This way, there is a single point of access to the method and there is no need to instantiate a class to access static methods. Static variables enable global access to the data in the JVM. Scala, on the other hand, offers a similar mechanism, but in the form of objects that are the implementation of the singleton pattern. There is one instance per class loader, and in this way it is possible to have a globally shared state. However, objects are instances of classes that can be used to pass objects as parameters.

Scala and Java interoperability

Scala runs on the standard Java platform and works seamlessly with all Java libraries. It integrates seamlessly with Java, which means that Scala can call any Java code, subdivide any Java class, and implement any Java interface. It is fully Java compatible. However, there are functions of Scala that cannot be accessed from Java, including properties with defined methods, classes, and methods with invalid names in the extended types of Java and Scala. The main difference is what programmers see and advanced type checking when compiling code.

Scala vs. Java: comparison table

Summary of Scala and Java

Both Scala and Java are JVM-based object-oriented programming languages ​​that are used to create a wide variety of applications. However, Scala is more object-oriented than Java, which integrates both object-oriented and functional programming in a fairly succinct and extraordinary language. Scala has all the advantages of the Java platform and works seamlessly with all Java libraries, but backward compatibility is not supported. Scala is fast and concise, and offers more type-safe features than Java. However, Java has been around for centuries, which is responsible for its popularity and maturity.