How do I use Java with JavaScript

Difference Between Java and JavaScript

The differences between Java and JavaScript

Let's now show a few key differences between the two programming languages.

1. Different purposes

JavaScript and Java were developed for very different purposes. While Java is a versatile all-purpose weapon for complex desktop and server applications as well as operating systems (Android!), JavaScript has specialized in Applications in the web browser.

2. Compiler vs. Interpreter

Java programs must first be compiled (i.e. the Java code must be translated into binary code). JavaScript, on the other hand, does not require a compiler; the JavaScript source code is from a interpreter executed directly: this is an important characteristic of everyone Scripting languages.

3. Requirements

In order to develop and run programs in Java, the Java Development Kit (JDK) with the Java Virtual Machine must be installed on the computer. A simple one is sufficient for programming in JavaScript Text editor and an Internet browser with an activated JavaScript plug-in to start the programs.

4. Dependency

Java is one Standalone Programming language, i.e. that a Java program is already executable by itself through the Java Virtual Machine. JavaScript, on the other hand, is part of a website, integrated in HTML and requires a browser.

5. Object orientation

Objects are used in both Java and JavaScript. The difference is that it is unlike Java in JavaScript no Classes there. This form of object-based programming is called prototype-based programming designated. Objects are not created here by instantiating a class, but by cloning existing objects.

6. Typing

Java uses the static typing. This means that the data type of a variable is checked at compile time. The programmer must therefore explicitly specify the data type when declaring variables (int, double, boolean, ..).

In JavaScript, on the other hand, the dynamic typing used, which means that type safety is checked at runtime. The programmer does not mention the data type in the variable declaration.

We can see what that looks like here: