C# is a general-purpose, modern and object-oriented programming language pronounced as “C sharp”. It was developed by Microsoft led by Anders Hejlsberg and his team.
Java is a general-purpose computer programming language that is concurrent, class-based, object-oriented etc. Java applications are typically compiled to bytecode that can run on any Java virtual machine (JVM) regardless of computer architecture.
Below are some major differences between C# and Java: platform-independent APIs
| Feature | C# | Java |
|---|---|---|
| Operator Overloading | C# supports operator overloading for multiple operators. | Java does not support operator overloading. |
| Runtime Environment | C# supports CLR(Common Language Runtime). | Java supports JVM(Java Virtual Machine). |
| API Control | C# API are controlled by open source community. | Java API are also controlled by open community processes support. |
| Public Classes | In C#, there can be many public classes inside a source code. | In Java there can be only one public class inside a source code otherwise there will be compilation error. |
| Checked Exceptions | C# does not support Unix-based checked exceptions. In some cases checked exceptions are very useful for the smooth execution of the program. | Java supports both checked and unchecked exceptions. |
| Platform Dependency | C# is cross-platform and runs on both Windows & Unix based systems. | Java is a robust and platform independent language. Platform independency of Java is through JVM. |
| Pointers | In C# pointers can be used only in unsafe mode. | Java does not support anyway use of pointers. |
| Conditional Compilation | C# supports for conditional compilation. | Java does not supportconditional compilation. |
| goto statement | C# supports for goto statement. | Java does not supportsupport for goto statement. The use of goto statement will cause errors in Java code. |
| Structure and Union | C# supports structures and unions. | Java doesn’t support structures and unions. |
| Floating Point | C# does not supports strictfp keyword which means it result of floating point numbers may not be guaranteed to be the same across all platforms. | Java supports strictfp keyword which means its result for floating point numbers will be the same for various platforms. |
| Language | C# is based on JavaScript. | It is in itself is an independent language. |
| Routing | For routing configuration, it uses ASP.Net | For routing configuration, it uses akka.routing |
| Dependency Injection | It uses dependency injection. | It not only uses dependency injection but also allows modification. |
| Speed | Speed is slower than JAVA. | Speed is faster than the speed of C#. |
| Polymorphism | It supports polymorphism by default. | It supports polymorphism by default. |
| Delegates | It contains delegates. | It does not contain delegates. |
