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Difference Between Java and .NET

Last Updated : 16 Apr, 2025
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Java and .NET are both popular and widely used platforms for developers. These are used to create robust and scalable applications, which can be web or system applications. But both Java and .NET have some different features and are used for various functionalities and purposes. The main difference between Java and .NET is,

  • Java: Java is developed by Sun Microsystems and used for multiple purposes such as web development, Android development, and desktop applications. It is an object-oriented programming language. It runs on the JVM, which makes it platform-independent.
  • .NET: It is developed and maintained by Microsoft. The .NET is a common executable platform and we can use different languages in it, such as C#, F#, or Visual Basic. .NET is mostly used to create Windows-specific applications, games, and app development.

Java vs .NET

Java

.NET

Java is an object-oriented and platform-independent high-level programming language. .NET is a cross-platform, open-source software framework used for developing software applications.
Java requires a JVM (Java Virtual Machine) for execution during runtime. .NET requires CLR (Common Language Runtime) for execution during runtime.
It supports multiple Operating Systems and a third-party system. It only supports the Windows Operating System.
Java provides a less efficient manner of garbage collection as compared to .NET. .NET provides a more efficient manner of garbage collection as compared to Java.
In Java, JDBC (Java Database Connectivity) is used for the database connection. In .NET, ADO (ActiveX Data Objects (ADO) is used for database connection.
For Java, multiple third-party IDEs (Integrated Development Environments) are available. It has a standard IDE (Integrated Development Environment) i.e., Microsoft Visual Studio.
It supports connected architecture. It supports disconnected architecture.
It is a step behind .NET in case of providing security. It is a step ahead in case of providing security.
It provides a little harder exception handling concept than .NET. It provides an easier exception-handling concept than Java.

Basics of Java

Java is an object-oriented and platform-independent high-level programming language. It is considered the foundation for virtually every type of networked application. With the help of the Java programming language, we can develop and deliver global standard embedded applications, mobile applications, enterprise applications, games, web-based content, etc.

Advantages of Java Programming Language

  • Simple programming language
  • Object-Oriented Programming
  • Platform-Independent
  • Distributed computing
  • Secure language
  • Multi-threaded
  • Cheap and economical to maintain

Disadvantages of Java Programming Language

  • Single-Paradigm Language
  • Memory-consuming and slower than natively compiled languages
  • Slow and has a poor performance
  • No Unsigned Types
  • Does not provide so attractive look and feel of the GUI
  • Less machine interactive

Basics of .NET

.NET is an open-source software framework used for developing software applications. It supports the building and running of next-generation applications and web services. With the help of .NET, we can create reusable modules, as a result, it makes the application code error-free and improves productivity. .NET is designed and developed under the Microsoft and .NET community and came up with the large support. It is specifically designed for Windows, but there are some frameworks which work on the .NET environment and provide cross-platform support, like Xamerine and its updated version .NET MAUI. provides to develop applications across different operating systems like MacOs, Linux, iOS and Android.

Advantages of .NET:

  • Multi-tiered software architecture
  • Cross-platform design
  • Object-Oriented Programming
  • Great Caching System
  • Universal .NET Standard
  • Flexible Deployment and Easy Maintenance
  • Automatic monitoring in ASP.NET

Disadvantages of .NET:

  • Limited Object-Relational Support
  • Memory Leaks
  • Slower than Native Code
  • Vendor lock-in
  • Migrating applications is expensive
  • Stability Issues for New Releases



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