On the one hand, Java is an object-oriented programming language, on the other, a technology developed by Sun Microsystems. Both the Java development language and the technology have been officially in existence since May 23, 1995. The code is compiled to bytecode and runs on a dedicated Java machine.
This smooths out both Java development disadvantages arising from pure compilation and disadvantages arising from pure interpretation.
Interesting feature
In Java, bytecode is used when some code is compiled from the source code of a program. A special interpreter is used to execute the algorithm of this code. It sequentially translates the bytecode instruction into the corresponding machine instruction and executes it, then translates the next bytecode instruction. Moreover, the bytecode is optimized for a specific platform, so that a minimum of time and resources would be spent on its execution. At the same time, the program works correctly on other platforms, the main thing is that the interpreter of this bytecode is installed on them. If you’d like to know more about this, please contact Java development services by Dataxdev.
Java principles
Everyone knows that the principles of Java are simplicity of the language, safety, and code portability. These principles are not always fulfilled and this is one of the main disadvantages of Java. For example, the complexity of the syntax of nested classes. But in general, their impact on the language has knocked Java to the fore. This made Java a fairly reliable tool in such areas as the space industry (the Spirit rover) and the financial sector.
Benefits
One of the biggest advantages of the language is its rich library. On the one hand, the vastness of the library is one of the obstacles to language learning, and as a result, a high threshold for entry. But due to the high threshold of entry, the popularity of the language decreased, while the demand for the language remained the same/increased. This gives us such fruits as a high salary for Java programmers, relatively little competition, the possibility of free training in Java by interested companies, and subsequent certification and employment by the same companies.
A rich library reduces the trivial part of a programmer’s work to find a ready-made solution. That frees the programmer from routine and gives him the opportunity to invest more seriously in the creative aspect, to save time and effort.
Disadvantages
Verbosity and cumbersomeness
One of the problems with Java. And there are two reasons for this: the rigid policy of the Object-Oriented Approach (hereinafter OOP), the absence of first-class functions.
OOP policy was introduced in Java in order to get rid of some of the dangers that arise when creating a large project. In Java, it is impossible to create functions that are not methods of any class. For example, in C ++ there is no such prohibition. Because of this, in C ++, when designing large projects, a number of dangers arise. Using non-method functions results in:
- There may be a conflict when naming functions when the name of a function with the same set of parameters and the same data type already exists;
- The project as a whole becomes more clumsy;
- The project becomes difficult to comprehend even for those who have been in the project for a long time.
Resource intensity and slowness
Java, despite various optimization methods, is still quite resource-intensive and slow. The reasons are as follows:
- Auto garbage collection;
- Compilation on the fly;
- Refusal from such dangerous mechanisms as: pointer arithmetic, implicit type conversion with loss of precision, functions of the first class.
But this all makes the language more platform-independent and secure. On the one hand, auto garbage collection frees the programmer from the worry of freeing memory, on the other hand, there is a known problem when auto garbage collection did not work and a serious memory leak occurred.
