OOPS stands for Object-Oriented Programming. Java is one of the Object-Oriented Languages.
These concepts are primarily known as Abstractions, Encapsulation, Polymorphism or Inheritance. Developing a common over these languages is the prime most factor in understanding how languages like Java Work. Primarily, the methods of OOPS allows us to create or work with variables and methods while simultaneously enabling us to re-use all or part of them without jeopardizing security.
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Here is a list of all the concepts of Object-Oriented Programming in Java:
It is the process of carefully selecting the potential candidates of the data from a larger pool of data types, variables and functions called classes. It enables the developers to reduce coding the same function, class or block again and again and borrow it from other classes in a secure manner. It lets strategic pieces of code to be shared among packages, classes or functions. Private, Public and Protected modes are few of the modes inheritance that regulates different levels of abstractions.
Abstraction in C++/Java can be implemented using Classes. The classes enable one to group different data members and member functions while leveraging different types of access specifiers. Class regulates which data members would be available outside the scope of class or block and which members would not be available.
In C++, Abstraction can also be implemented via Header files, however, in Java it can also be implemented through instances or packages.
Encapsulation enables a developer to keep the fields private within a class. The developer can provide conditional or regulated access to the content of the class to other friendly classes or functions via other routes. This way, objects and numerous components of code can be re-utilized without compromising the integrity of the whole system.
Inheritance is an inseparable function of Object-Oriented programming languages. This feature enables developers to create new classes and packages and allows them to share the attributes amongst them of other existing classes.
Polymorphism is the provision of a single interface to different types of entities, or the use of a single symbol to represent multiple different types. For example, In Java, same keywords, functions and operators can be overloaded to make them perform different functions at different times. This is also known as overloading. For example, Operator Overloading and method overriding. Another important aspect of Java Homework Help is that students should know why Java is being chosen as the language of choice for deployment and development of applications even in 2020. It is important for the students looking for Java Assignment Help to know the internal working of Java and its perks like memory management and platform independence.
Java is primarily being used for server-side deployment of Backend logic of numerous cloud services, websites, and applications. Butt why is Java the most appropriate choice for the Server side of the programming. This is because of factors like scalability, fast executions, and Platform independence due to JVM.
One well-established feature of Java is portability. This advocates that programs that are written on Java as the platform, they tend to run on any possible combination of hardware and software or operating system. This is made possible because of the Java Virtual Machine that compiles the code written in Java language to an intermediate representation called Java bytecode. It is not directly converted to architecture-specific machine code, but instead, first converted to Java bytecode which is universal and converted to architecture-specific machine code with the help of machine-level algorithms through Java Virtual Machine or JVM. A Java Runtime Environment is commonly made available to the end-user by installation packages for their machine which allows standalone Java applications or web applications to natively run on devices. Java has a plethora of Standard libraries that also provide a common method to access host-specific features like threading, networking, and graphics.
Thus, using the universally recognized bytecode makes it easy to assign ports for I/O operations. But, this also accounts for the lag and delay that occurs for during the run time. To counter this, Just in time compilers were introduced in the early ages of java to compile bytecodes to machine codes.
When compared to C++, programs that are written in Java tend to be a lot slower than the ones that are written in C++. Moreover, the programs also require more memory than the ones running in C++. However, with Just in time compilers, the speed of execution of Java programs improved exponentially over time. The performance further improved as Java. Util package was introduced that included implementation of concurrent Maps and other features to make use of multi-core processors. Today, Java runs as fast as any other language and is scalable, can make use of multi-threaded and multi-core processes, as well as can be platform-independent.
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Java's automated memory management is leaps ahead of that of the languages like C++ or C as Java hosts an automatic garbage collector that manages memory throughout the lifecycle of an object. The developers decide when to create objects in the program whereas the java runtime scavenges and delete any unnecessary object from the primary memory. Once an object is left reference less, the Java garbage collector frees memory by popping the address of the object out of the memory stick. This is important as dereferenced objects can pave way for major memory leaks and deadlock conditions. Traditionally, the objects that are no longer required are stored in specific array containers that stay in use throughout the application. The automated memory management of Java saves developers from performing and executing manual memory checks to manage memory efficiently while developing.
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