C++ Portability

                                     C++ Portability

How do Java and C# create cross-platform portable programs, and why can't C++?

• Why C++ is not cross platform dependent?

• Why C++ is not a portable?

• How Java is portable?

• What makes Java and C# portable? 

• We have summarized all the reason that makes Java and C# portable and C++ :

Reason :

Consider Scenario of C++ Language :

• Portability of any language depends on the object code created by compiler.

• C++ Compiler produces machine code which is directly executed by the CPU.

• C++ Code is thus machine dependent and tied to particular Operating System (OS).

• If we try to execute C++ program on the another Operating C++ then we must recompile program before executing program.

Consider Scenario of Java Programming Language  :

• Java is created by Sun Micro System. [See: What is Java?]

• Java compile produces intermediate code called Byte Code.

• Byte Code i.e. intermediate code is executed by the Run Time  Environment.

• In Java Run Time Environment is called as "JVM" can produce machine dependent code based on the intermediate code.

• Here is Descriptive reason- Why Java is Portable?

  Consider Scenario of C# Programming Language :

• C# was created by Microsoft.

• C# compiler produces intermediate code called as MSIL (Microsoft Intermediate Language).

• MISL i.e. intermediate code ic executed by CLR ( Common Language Run Time).

• If we have CLR  already implemented on any platform then CLR can produce machine 

• dependent code based on the intermediate code.

• Re-commanded Article : Difference Between C# and Java.