What is difference between C and Java?

Answer 1

+

A long time ago, many people believed Java was slower than C because Java had to run through a virtual machine. Today however, Time and speed aren't really affected by the programming language or the used technology as much as affected by memory cards capacity and processors speed (Clock rate). Hench programmers and developers started looking for the most powerful yet easy to 'learn and work with' programming language. And there came Java with the multi-platform support, Object oriented methodology and other great capabilities and features.

On the other hand, General Purpose applications are still developed using C++ because it doesn't need any intermediate software to run.

and i think that java it's been improved everyday by the newest releases of the implementation of the virtual machine.

Answer 2

The main differences between Java and C are speed, portability, and object-orientation.

Java was created for the purpose of making a language that could be implemented on many different types of computers (cell phone, mac, PC, linux, etc.) C on the other hand can only be run on a computer of the same type as the one that compiled the program.

One of the costs of this portability in Java is speed. On numerous benchmarks Java still lags behind C in terms of speed, but that gap is narrowing.

Java is also object-oriented, whereas C is not. Java allows a user to create classes that contain data and methods. C is not capable of doing that.