What Is The Difference Between C++ And Java?

  • Posted by  Sujan 
    27 Jun, 2012

    Question:What is the difference between C++ and Java?


    -> Java does not support pointers. Pointers are inherently tricky to use and troublesome.
    -> Java does not support multiple inheritances because it causes more problems than it solves. Instead Java
    supports multiple interface inheritance, which allows an object to inherit many method signatures from
    different interfaces with the condition that the inheriting object must implement those inherited methods. The
    multiple interface inheritance also allows an object to behave polymorphically on those methods.
    --> Java does not support destructors but adds a finalize() method. Finalize methods are invoked by the garbage
    collector prior to reclaiming the memory occupied by the object, which has the finalize() method. This means
    you do not know when the objects are going to be finalized. Avoid using finalize() method to release nonmemory
    resources like file handles, sockets, database connections etc because Java has only a finite
    number of these resources and you do not know when the garbage collection is going to kick in to release
    these resources through the finalize() method.
    -->Java does not include structures or unions because the traditional data structures are implemented as an
    object oriented framework
    --> All the code in Java program is encapsulated within classes therefore Java does not have global variables or
    --> C++ requires explicit memory management, while Java includes automatic garbage collection.

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