Like any other language in the world, Java language has its own rules of syntax and structure. Additionally, it follows a particular programming paradigm. Java language supports OOP or object oriented programming. This is a C language derivative so it has much in common with the syntax rules of this programming language. Code blocks are, for example, are modularized into methods and braces delimit them. Variables are declared prior to their usage.
Java is a language which structurally starts with packages. The package is basically the namespace mechanism. Going further into this, classes are contained within packages. There are different components within the classes such as methods, variables, constants and more.
When you program for the Java platform, source code is written in Java file and then compiled. Compiler checks the code against the syntax rules of the language known as the bytecode. Bytecode is set of instructions targeted on JVM or Java Virtual Machine. Java compilers offer from others which write out instructions.
Java Virtual Machine reads and interprets .class files and executes the instructions of the program on native hardware platform. JVM interprets the bytecode much like assembly language instruction is interpreted by the CPU. JVM is written for a specific platform.
JVM runs on the “write on, read anywhere” principle and the code can also run on a chipset for which the JVM implementation is available. For major platforms such as Windows and Linux, subsets of Java language have been implemented.
Rather than keeping up with memory allocation or using third party libraries, Java provides memory management out of the box. This means that when the Java application creates an object instance within the run time, memory space for the object is allocated by the JVM automatically from a heap- pool of memory set aside for programs to use.
The Java garbage collector, called so because it keeps track of objects that are no longer needed by apps and reclaims memory from them,is a handy tool for implicit memory management as it does not require any memory handling code. This is one of the essential features of Java platform performance.
A JDK A OR Java Development Kit gets a complete class of library of prebuilt utilities that help in accomplishing common app development tasks in addition to the compiler and other tools. Java Runtime Environment or JRE is inclusive of the JVM, code libraries and components needed for running programs written in Java language. JRE can be used for varied platforms and freely redistributed with applications.
JDK consists of a set of command line tools for compiling as well as running the Java code including a complete copy of JRE. Though these tools can be used to develop apps, additional functionality and task management as well as unique interface of an IDE is considered far better. Java perspective contains tools needed to start writing the applications in this programming language.
Java language is object oriented mostly. This means that it defers from structural programming. While structured programming paradigm is highly data oriented, object oriented language such as Java combines data and program instructions into objects. So, what is an object? Java Training is a self contained entity with specific attributes and behavior.
In object oriented languages like Java, data and program logic are combined whereby parent objects serve as structural basis for complex child objects. In Java Training terminology, objects talk to others by sending messages called method calls. In object oriented application, program code specifies the activities among objects to perform tasks within given app domain. Object is a discrete entity that has necessary dependencies on other objects.
State is an important concept in object oriented programming represented by the value of its attributes. The defining principles of OOP are encapsulation, inheritance and polymorphism. Object’s discreteness is the principle of encapsulation at work. This is one of the most powerful features of this programming language. Through the property of inheritance, specialized classes without additional code can copy attributes and behaviors of source classes that they specialize. Polymorphism is a concept whereby objects that belong to the same branch of a hierarchy can sent the same message and manifest this behavior in a different way.
Who should learn Java Training?
Anyone can and should learn Java Training because this language can be mastered by novices and experts alike. Creating computer programs to perform tasks for individuals is the essence of Java. Java Training is ideal for those who want to learn more sophisticated computer programming languages to improve their logical thinking. They can also program in a object oriented world using this programming language to create robust web applications. From software developers to students, Java is as important as can be. In fact, Java Training is a wakeup call for those who do not want to be left behind in the field of technology.
#2 OOP Offers Opportunities
Java is also a very popular choice as a programming language because it is an OOP or object oriented programming language. Developing such an application is simpler and assists in keeping the system flexible, modular and extensible. Knowledge of key OOP concepts like Abstraction and Encapsulation enables programmers to be acquainted with extensive best practices and design patterns within the library. This programming language of Java Training has the distinction of being one of the few programming languages that is close to 100 percent object oriented programming.
#3 Rich API Provides A Wealth of Learning Options in Java Training
Java programming is a huge success because it has a rich API and is highly visible as it comes with Java installation. Java provides API for everything from FML parsing, database connection, networking utilities and I/O and whatever remains is covered by open source libraries such as Google Guava which offer fruitful scope for growth.
#4 Strong Development Tools like Eclipse Outshine Their Contemporaries
Eclipse and Netbeans have a huge role to play in making Java one of the top programming languages. They help in code completion and serve as powerful debuggers for real world development. IDE or Integrated Development Environment makes Java development a fun filled, simple and interesting progress. Java platform also has other tools for building Java apps such as ANT and Maven.
#5 Expanding Collection of Open Source Libraries
Open source libraries ensure that Java can be used anywhere and everywhere Open source libraries offered by Apache, Google and other organizations make Java development light on the pocket and easy to follow. Java development follows best practices of software craftsmanship promoting use of design patterns which ensure the task is 100% complete.
#6 Excellent Support from the Community
Community is one of the most important strengths of Java programming. A language can only survive and thrive if a community supports and helps its development. Beginners, intermediate and expert Java programmers are ever willing to lend a helping hand and open source organizations, active forums, Stackoverflow and Java user groups are there to help everyone.
#7 The Best Things in Life Are Free and Java is One of Them
If a programmer wants to learn a language or an organization wants to use a programming system, cost is always an important consideration. You don’t need to pay a single dime to create a Java application and freedom to choose and make independent decisions is what counts for any programmer. Java is also preferred for strategic development because finding skilled programmers in this field is easy.
#8 Documentation Support that is Comprehensive
Javadoc is a wonderful piece of documentation that makes learning 100% easy and IDE further simplifies the picture.
#9 Platform Independence Offers Freedom in Java Training
One of the main reasons why Java Training is so popular is the idea of platform independence. In fact, Java’s tag line is write once, run anywhere. Java apps are developed in Windows platform mostly.. They also run in open source platform.
#10 Java Transcends Barriers
Java is everywhere from desktop to mobile and card. Java programmers easily outnumber other professional programmers and offers excellent community resources in the bargain.
What are the pre-requisites of learning Java Training?
Java Training has absolutely zero perquisites for learning the language. Much like other programming languages, Java Training has its own syntax for declaring local variables or functions called methods. Counter based loops, while-do loops, do-while loops and for loops et al are some of the many ways to execute a tasks several times over. Java Training introduces fresh though streams to experienced programmers.
Java Training learning is easier if you have some idea of OOP because Java’s main strength comes from this attribute. You need to think logically, be able to write code and imagine in blocks to define classes as well as read and understand technical language as well as notation. Knowledge of computer memory and pattern based thinking are added advantages for Java Training.
Java Training can be learnt without knowing any other programming languages. Prior knowledge is not needed to commence programming. Java Training a great first language to learn and if you want to short circuit the process, learning Python or any other good scripting language is a good step forward.
Advantages/Uses of the Java Training
Java is one programming language which has multiple benefits. Here are some of its advantages and obvious payoffs of Java Training.
#1 Java Training has unique features
It is easy to learn and use. It is also easier to write, compile, learn and debug as against other programming languages. It is also object oriented which when decoded means you can come up with reusable code and create modular programs. Java is also platform independent and can be moved from one system to another at source and binary levels. Its cross platform capacities and security features make it the language of choice for coders and programmers worldwide.
#2 Java can be run anywhere once it is written
The core value proposition of the Java platform has been identified by Sun as “Write once, run anywhere” meaning the application code has to be written only once for the Java platform and be able to run it anywhere. It is integrated into all major OSs and built into popular web browsers. This makes it easy to run on any PC, consumer electronic device or cell phone in the world.
#3 Security features make Java 100% safe
Another key benefit of Java Training is its security features, The language as well as its platform has been designed jeeping security in mind and it cannot infect the host system or read or write files from the hard drive making it a truly unique platform. Security related bugs have been found and fixed faster in this type of programming language than any other.
#4 Network centric programming makes Java Training unbeatable
Java makes it simple to work with resources across a network and create network based applications through client/server or multi-tier architectures. In the world of programming software, Java Training offers a serious head-start in the network economy.
#5 Java unites the world
Java language and platform have been designed keeping the rest of the world in mind and Java uses 16 bit Unicode characters representing phonetic alphabets and ideographic character sets across the entire globe. Internationalization is not restricted to low level character representation.
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