C++ Java 1. C++ is platform dependent. 1. Java is platform independent. 2. C++ does not support garbage collection for memory management. 2. Java has the concept of automatic garbage collection for memory management. 3. C++ supports the concept of pointer, structure, union,etc. 3. Java do not supports pointer, structure and union concept. 4. C++ supports operator overloading concept. 4. In java there is no concept of operator overloading. 5. Multiple inheritance is possible in C++. 5. Java never supports the concept of multiple inheritance in case of class. 6. C++ supports the concept of Destructor. 6. In java there is no use of Destructor. 7. C++ supports both call by value and call by reference concept. 7. In java there is no call by reference, it only supports call by value approach. 8. In C++ we do not have built-in support for multi-threading concept. It has to take help from third party libraries. 8. Java has built-in support for multi-threading. 9. C++ includes different header files for uniform execution of the program. 9. Java do not header files, rather it uses import keyword to include classes and its methods. 10. C++ is said to be compiled language. 10. Java is said to be both compiled as well as interpreted.