How are Java and JavaScript Different from One Another?

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The name in both Java and JavaScript can be deceiving. While both languages utilize the Java programming language, that is essentially where the similarities end. In fact, JavaScript used to be referred to by a different name!

But let’s look at what the differences between the two are and what they really do.

What is Java?

Java is a programming language that was released in 1995 by Sun Microsystems. Since then, it has become an instrumental feature in most technology. One of its biggest benefits is its stable structure and reliability. Some features of Java include:

  • Used in Android and general mobile app development
  • Supports scientific computing and large analytical data

Advantages of Java

  1. It allows for detailed data reports to be generated.
  2. There is a large community of dedicated and supportive developers backing it up.
  3. It’s multithreaded, lets developers reuse code, and has helpful third-party libraries for information.

Disadvantages of Java

  1. Its JIT (Just In Time) compiler makes it slower.
  2. The complexity of the language means more money is charged to use its software.
  3. It isn’t compatible with garbage collection.

What is JavaScript?

Dynamically typed and released the same year as Java, JavaScript was initially introduced as LiveScript. However, its creator, Netscape, renamed it to capitalize on the popularity of Java. Similarly, like Java, this language is object-oriented. Some of the features of JavaScript are:

  • Deep integration with HTML and Java
  • Compatible across various platforms

Advantages of JavaScript

  1. It’s supported by Microsoft.
  2. It can be run on all browsers with Java compatibility.
  3. Elements like interfaces and classes are supported within it.

Disadvantages of JavaScript

  1. JavaScript is limited since file writing or reading isn’t supported for users.
  2. It isn’t as popular as Java and doesn’t have significant backing by a large community.
  3. It won’t work with multithreading or with multiprocessors.

Side by Side

Here are some of the most important differences between Java and JavaScript:

  • Java is a programming language while JavaScript is a scripting language.
  • JavaScript must be incorporated into HTML or Java code to be used.
  • Specific codes have to be used in Java while JavaScript is predictive.
  • Web browsers aren’t necessary for Java programs, but they are for JavaScript programs.
  • The learning curve for Java is steeper than the curve for JavaScript.
  • JavaScript’s predictive element makes it less memory-heavy than Java.

Final Thoughts

Initially, Java and JavaScript seem more similar than they are different. However, this closer look highlights specifically what each language can do. They are indeed more different than they are similar. Nonetheless, both languages are Java-based, which makes them invaluable tools to learn. Current technology is almost completely integrated with Java software. Learning how to use both Java and JavaScript, while it isn’t necessary, can significantly improve the skillset of a developer. The use of Java programs has only increased since 1995 and is likely to continue increasing due to how widely used Java itself is.