1. C++ supports procedural programming, functional programming, object-oriented programming, generic programming, and template metaprogramming. Favors a mix of paradigms. Java strongly supports object-oriented programming paradigm.

2. Java does not support pointers. In C++, the pointer is one of C++ most important language features. It is also one of the most dangerous if used improperly.

3. C++ has deterministic destruction; Java does not. Deterministic destruction is useful for managing resources. In C++, when objects are deleted, their destructors are executed immediately.

4. Java has built-in multithreading support. There’s a Thread class that you inherit to create a new thread (you override the run( ) method).

5. In Java, all classes inherit from the Object class directly or indirectly. Therefore, there is always a single inheritance tree of classes in Java. Unlike C++, It supports both single and multiple inheritances.