Major(Top) Difference Comparisons Similarities between Java and C++

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Major Differences Similarities Comparison between Java and C++:

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Features	Java	C/C++
Pointer	No	Yes
Operator Overload	No	Yes
TypeDef,Define,Preprocessors	No	Yes
Structures,Unions	No	Yes
Enums	No	Yes
Functions	No	Yes
Goto Statament	No	Yes
Automatic  Coercions	No	Yes
Global Varibales	No	Yes
Templates	No	Yes
Private,Protected,Public Inheritance	No	Yes
Default Parameters	No	Yes
Garbage Collections	Yes	No
Multi Thread Support	Yes	No
Multiple Inheritance	Yes(Supports only interface inheritance and not implementation inheritance)	No
Exception Handling	Yes(Try/Catch must be defined if the function declare that it may throw an Exception)	Yes(You may not include the Try/Catch even if the function throws an Exception)
Function Overload	Yes	Yes
Internationalization	Yes	Yes
Include of other Objects	#import	#include

Difference between C++ and Java:

1.    C++ supports pointers whereas Java does not pointers. But when many programmers questioned how you can work without pointers, the promoters began saying "Restricted pointers.” So we can say Java supports restricted pointers.

2.    At compilation time Java Source code converts into byte code .The interpreter execute this byte code at run time and gives output .

    Java is interpreted for the most part and hence platform independent. C++ run and compile using compiler which converts source code into machine level languages so C++ is plate from dependents

3.    Java is platform independent language but C++ is depends upon operating system machine etc. 

   C++ source can be platform independent (and can work on a lot more, especially embedded, platforms), although the generated objects are generally platform dependent but there is clang for ,which doesn't have this restriction.

4.    Java uses compiler and interpreter both and in C++ there is only compiler

5.    C++ supports operator overloading multiple inheritance but Java does not.

6.    C++ is more nearer to hardware then Java

7.    Everything (except fundamental types) is an object in Java 

(Single root hierarchy as everything gets derived from 

Java.lang.object).

8.    Java does is a similar to C++ but not have all the complicated 

aspects of C++ (ex: Pointers, templates, unions, operator 

overloading, structures etc..) Java does not support conditional 

compile (#ifdef/#ifndef type).

9.    Thread support is built-in Java but not in C++. C++11, the most recent iteration of the C++ programming language does have Thread support though.

10. Internet support is built-in Java but not in C++. However C++ has support for socket programming which can be used.

11. Java does not support header file, include library files just like C++ .Java use import to include different Classes and methods.

12. Java does not support default arguments like C++.

13. There is no scope resolution operator :: in Java. It has . Using which we can qualify classes with the namespace they came from.

14. There is no Goto statement in Java.

15. Exception and Auto Garbage Collector handling in Java is different because there are no destructors into Java.

16. Java has method overloading, but no operator overloading just like C++.

17. The String class does use the + and += operators to concatenate strings and String expressions use automatic type conversion,

18.Java is pass by value

19. Java does not support unsigned integer.

                       

   more differences coming soon............