What is thespecailities of java over other programming language?

Answer 1

I'm assuming you meant, "What are the advantages of Java over other programming languages".

Java is essentially universal. There is a special program called the Java Runtime Environment that is pre-made for most operating systems. With that in place and readily available, a Java programmer simply makes one program, compiles it to byte code (not to be confused with machine code), and that same program will run on ANY operating system with the Java Runtime Environment installed.

With many other programming languages (including a main competitor, C++), the code must be recompiled for every operating system and architecture it needs to run on. Many times OS-level API's force a code change, as certain features in an operating system aren't the same as the next.

Since Java's Runtime Environments have already been compiled for each system, the byte code is free to execute and be interpreted by the Runtime Environment of any system, without regard to OS or architecture. Arguably, this comes at the sacrifice of some speed, but gives a substantial portability gain.

Java's friendly syntax and proactive garbage collection make it ideal to developers as well. These are Java's primary strengths when compared to other languages.

Hope this helps!