When we come to the professional environment of programming, we see the two big names of programming languages which are leading. These are C++ and Java. The major difference which can be found in C++ and Java is that programs in java are a slower to run than C++.     Java is 20 times slower then C++. Which  make a huge difference between the languages.

However, Java has both kinds of comments like C++ does. All method definitions are defined in the body of the class. Thus, in C++ it would look like all the functions are in lined, but they’re not. Likewise C++, Java has primitive types for efficient access. Java has boolean, char, byte, short, int, long, float, and double. All the primitive types have specified sizes that are machine independent for portability. Type-checking and type requirements are much better in Java.

In place of namespaces, Java uses packages. The name issue is taken care of by putting everything into a class and by using a facility called "packages" that performs the equivalent namespace breakup for class names. Packages also collect library components under a single library name. Simply import a package and the compiler takes care of the rest. Both Java and C++ offer both types of comments for you to select from.

Many people don’t realize that Java was derived from the foundation of C++ so that is why it offers so many of the same features. They wanted to offer a product that was comparable to encourage people to buy it. This is why Java doesn’t have the same forward referencing problems as C++. Instead it is smart enough to simply define what you want to do with it.

It is important to note that there are many different formats of Java. Therefore the results you will get depend on what format you are using. Overall though you will find both C++ and Java offer plenty of great benefits so you can access all the functions you need to complete various tasks. Right now C++ is faster but you can be sure Java will continue to improve so it can offer you the same speed in the near future.