Java vs Swift: Major Difference You Should Know

Java Vs Swift

In the vast area of programming languages, where innovation and creativity converge, two names have fascinated the hearts and minds of developers worldwide. They are Java and Swift, competing in a battle for supremacy. With its long-standing legacy and versatility, Java has been the go-to choice for enterprise solutions and a wide array of applications. Meanwhile, Swift, a relatively young and dynamic language, has taken the iOS and macOS development world by storm with its elegant syntax and cutting-edge features. As we explore their strengths, weaknesses, and distinctive characteristics, prepare to witness a clash of programming philosophies and discover which language reigns supreme. Welcome to the ultimate difference between Java vs Swift!

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What is Java?

It is the object-oriented, concurrent, general-purpose programming language and the computing platform which was first developed by Sun micro system in 1995.

Embedded systems, Desktop, big data processing, and many websites or mobile applications. These all are nothing without Java.

This programming language is a reliable, secure, and fast programming language. Java runs about 3 million devices worldwide, from game consoles to scientific supercomputers java is everywhere.

What is Swift?

Swift is a great and instinctive programming language. Swift is friendly to new programmers. Coding of the Swift language is fun and interactive as compared to other programming languages. Swift also includes some interesting features which every developer loves.

Swift is an industrial-quality programming language that’s as strong and enjoyable as scripting semantics. 

Apple develops the Swift language and was first released on 2. June.2014

Writing swift software is a fantastic way. whether it is for desktop or any cell phone and server. swift is an interactive fast and safe programming language. The language is optimize for development and the compiler is optimize for performance, without compromising on either.

Swift language is use to create mobile apps for iOS, macOS X, Linux, as well as for the AppleTV and Apple Watch.

History of Java and Swift


The historical background of Java is interesting. Java is initially develop for electronic devices. However, java is trending innovation for the digital broadcast business.

The history of Java begins with the Green Group. Java started this venture to build up a language for advanced gadgets, for example, set-top boxes, TVs, and so forth.

It is an object-oriented language, which develop by James Gosling and has a link with Sun Microsystems in 1990.

OAK is the first project on which Java was implemented by James in June 1991.

Main goal is to implement the language on the virtual machine, and that language had familiar to c-notation but is simpler and informal than c/c++. The first implementation was in 1995 of java1.0

the main motto of Java is “Write Once, Run Anywhere”


The Swift programming language was develop in the year 2010 by Chris Lattner. This language is developed in collaboration with several programmers at Apple.

The first application, which is written in Swift programming language, was publicly released on 2 June 2014 at the Apple worldwide developers conference.

This was the Beta version of the programming language which was release to register by the Apple developers. this beta version is not the final version of Swift.

The ideas for the swift programming language should configure from different languages like c#,objective-c, CLU, Ruby, Python, and a variety of other programming languages

The organization additionally presented a rough system for the improvement of Quick 3.0 on a blog in December 2015.

swift 2.2 – the discontinuous version – presented new highlights and semantic structure in the language. Some obsolete segments were likewise dispense with from the language with this adaptation.

Difference Between Java Vs Swift


java describes as a concurrent, object-oriented, class-based programming language created to have as few implementation provinces as feasible.

There are a lot of applications and websites which do not work without installation of java and many more creates day by day.

Mostly secure and reliable programming language.


Swift is described as “An innovative modern programming language for Cocoa and Cocoa Touch”.

Coding of swift is interactive and fun, the syntax is brief yet powerful, and apps run lightning-fast. 

Swift language is ready for next-generation iOS and OS X project — or extension into current using applications.

The main use of this language is it use side by side with the help of Objective-C.

Features of Swift vs Java:

Features of Java:

Java is simple: 

Java is a very easy language and simple to understand, the syntax of this programming language is quite easy. This language has many libraries which make it more simple.

Portable language:

Java is portable because it facilitates you to carry the Java bytecode to any platform. It doesn’t require any implementation.

Java is a portable programming language which is the main feature of Java because no implementation dependent aspects and neutral architecture make it more portable.

Java compiler is written in ANSI C, which is a clear portable boundary.


Java is fully object-oriented language. The data and behavior of the Java software are organized as a combination of different objects.

 OOP features like:

  1. Object
  2. Encapsulation
  3. Inheritance
  4. Class
  5. Abstraction

4. Java is securable:

Java is the most securable language because when we develop the application or any site that will be tamper-free system or virus free.

every program of Java runs in a Java runtime environment, making it private and secure. in java, you never hear that the virus attack the java

5. Highly performed:

Java coding is compile into byte which makes the Java compiler highly optimized which makes JVM execute at high speed. Java is an evaluated language and is never as fast as C or C++. 

But, Java enables high performance with the use of the just-in-time compiler.

6. Robust:

  1. It utilizes solid memory management. 
  2. There is an absence of pointers that keeps away from security issues. 
  3. There is a program called trash assortment in Java that runs on the Java Virtual Machine to dispose of articles that are not being utilized by a Java application. 
  4. Special cases are dealing with the sort checking system in Java. Every one of these focuses makes Java strong.

7. Java is Multithreaded :

Java multithreading highlight makes it conceivable to compose a program that can do numerous undertakings all the while.

The advantage of multi threading is that it uses the same memory and different assets to execute numerous strings simultaneously, as While composing, syntactic blunders are also check along.

Features of Swift:

Powerful and quick:

The swift programming language is shifted into an advanced native program. The all new hardware use these high-performance LLVM compilers.

Coding in Swift is easy because the standard library and format have been designed in the best way to write code.


Syntax of swift you to compose perfect and reliable code that may even feel exacting occasionally. Quick gives shields to forestall blunders and improve meaningfulness.


Swift is a modern programming language and created by recent research. The parameters written in a clear format, in which APIs of Swift are easy to read and manage.


There is truly not a goal – C in the plan. Swift language doesn’t hold is more the dynamism of goal – C. Which makes it simpler to keep up. It requires the developer to oversee two code documents to improve the assemble time and execution of the code, which likewise take over to objective-C. 

Swift developers can utilize additional time making application rationale and improving the nature of their code.


Swift programming language gives different speed administrations during improvement, saving money on costs. Swift programming language speed superior to objective-C. 

Swift and Java Difference In Tabular Form

Java is an object-oriented, general-purpose programming language developed by Sun Microsystems in 1995. Swift is a compiled and general-purpose programming language developed by Apple Inc and released in 2014.
Java is used for creating a wide range of applications, including application servers, web applications, Android applications, desktop applications, and enterprise applications. Swift is primarily used for developing iOS, macOS, and tvOS applications and games, mainly within the Apple ecosystem.
Java programming has a more lengthy and slightly complex syntax. Swift offers a more user-friendly and easily understandable syntax.
Inheritance In Java, inheritance is implemented using the “extends” keyword, for example, “class child extends parent”.In Swift, inheritance is denoted using symbols, for example, “class child: parent.”
Constructors in Java must have the same name as the class, for example, “demo()” in a class named “demo”. wift uses the “init()” method as a constructor.
Object Creation Object creation in Java is done with syntax like “obj = new demo();”.Swift, a relatively newer language, has a more limited community support base.
ava has a vast and well-established community with extensive support due to its long history. Swift, being a relatively newer language, has a more limited community support base.
Readability Java’s syntax and code readability can be complex.Swift offers a more intuitive syntax and enhanced code readability.
In Swift, object creation uses syntax like “var obj: A = A()”.Swift is employed by companies such as Slack, Accenture, Apple, and more as one of their core programming languages.

Java vs Swift: Pros and Cons of Both Programming Languages

Pros of Java:

  • Fast compile times
  • Incredibly helpful stack traces whenever a runtime error occurs.
  • IDE support is superior.
  • A massive standard library, containing things you didn’t even know you needed/wanted.
  • A balanced type system: static, as things should be, but fairly on the weaker side; type coercion is fair and balanced.

Cons of Java:

  • Bitwise operators always seem to return an “int” for whatever reason.
  • You must bundle a JVM with your application if you’re shipping for the desktop or you risk incompatibility issues with your customer’s JVM.
  • Abuses your heap space like nothing else. Java programs are always memory-hungry relative to their non-JVM peers. Always.
  • Non-deterministic. The garbage collector acts on its own, as does the JIT compiler.

Pros of Swift:

  • The “let” keyword.
  • Actual lambdas
  • Eye-wateringly beautiful interop with the C language.
  • Extensions
  • Access to low-level memory constructs like UnsafePointer if needed

Cons of Swift:

  • String slicing is an abomination because Swift handles characters as extended grapheme clusters under the hood, leaving us to provide our abstractions for the sub string().
  • The ability to declare a function inside another function. Who thought this was a good idea.
  • Removal of the C-style for-loop because it was “not cool anymore”. Instead, we have enumerate(), stride(), stride(), and a bunch of other weird-ass functions.
  • An incredibly hyper-draconian type system. You can’t divide an Int and a Double without hitting a compiler error.
Also read: Mojo Programming Language


In this difference between Java and Swift, we have seen a clash of two programming languages. Each has its own features, advantages, and disadvantages. As our journey comes to an end, it is time to highlight what we have discussed above

Java continues to reign supreme in the world of enterprise applications and cross-platform compatibility. Its vast ecosystem, mature libraries, and extensive community support make it an ideal choice for large-scale projects. On the other hand, Swift, the young and new language, attracts developers with its modern syntax, safety features, and seamless integration with Apple’s platforms. Its simplicity and conciseness promote faster development cycles, but its limited compatibility beyond Apple’s ecosystem can pose challenges for cross-platform projects.

Ultimately, the choice between Java and Swift depends on the specific requirements, target platforms, and development priorities. Both languages have proven their worth and continue to evolve, empowering developers to bring their visions to life.

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