by Dinesh Thakur Category: Java Evolution

The JAR file (Java ARchive) is a way to compress multiple files in Java, as well as a ZIP. Usually the classes and other configuration files are stored.
As they grouped several classes in a single file, they are great for distributing libraries, such as database drivers, frameworks, systems modules, etc.



 
by Dinesh Thakur Category: Java Evolution

(Open Database Connectivity) An APPLICATION PROGRAMMING INTERFACE published by Microsoft which, by loading the appropriate ODBC driver at run time, enables the same program code to have access to data from many different brands of database.



 
by Dinesh Thakur Category: Java Evolution

Java Virtual Machine (JVM)

JVM is a set of computer software programs and data structures which implements a specific Virtual machine model.



 
by Dinesh Thakur Category: Java Evolution

The means that allows Java to solve both the security and the portability problems is that the output of a Java compiler is not executable code but it is the Bytecode. Bytecode is a highly optimized set of instructions designed to be executed by the Java run-time system, which is called the lava Virtual Machine (JVM). JVM is an interpreter for bytecode. The fact that a Java program is executed by JVM helps solve the major problems associated with downloading programs over the Internet. Translating a Java program into bytecode helps makes it much easier to run a program in a wide variety of environments. This is because only the JVM needs to be implemented for each platform.

 
by Dinesh Thakur Category: Java Evolution

All the Previous Languages are Structured or we can say that they were procedural programming means in them processing is to be done in sequence manner and These are also called the Top down or either they were bottom up Languages Most Important things those must be in the Languages are Reliability, Maintainability and Reusability and user Friendly So For Achieving these things they Developed java.



 
by Dinesh Thakur Category: Java Evolution

1) Compiled and Interpreter: has both Compiled and Interpreter Feature Program of java is First Compiled and Then it is must to Interpret it .First of all The Program of java is Compiled then after Compilation it creates Bytes Codes rather than Machine Language.



 
by Dinesh Thakur Category: Java Evolution

Language: C is a powerful, efficient, general purpose structured programming language. Although C is a high level language but it also supports features of a low level language, so it is sometimes called a middle level language. It is actually binding the gap between a machine language and more conventional high level languages. c++ is partial copy of object oriented programming language that allow programmers to build large and complex applications in a useful and efficient way.

 
by Dinesh Thakur Category: Java Evolution

C++ and Java both are Object Oriented Languages but some of the features of both languages are different from each other. Some of these features are :

 
by Dinesh Thakur Category: Java Evolution

What is JVM (Java Virtual Machine): Most programming languages such as C/C++ compile source code directly into machine code suitable for execution on a particular microprocessor architecture or operating systems such as Windows or Unix. This property does not make these languages' architecturally neutral'. However, Java is an architectural neutral language as it follows. Write once execute anywhere approach. This feature of Java achieved as the Java compiler does not translate the source code into the machine language of the computer that the program is running on. Instead, the compiler translates source code into bytecode which is not understood by the underlying operating system. So an application is needed that can convert this bytecode into machine code understood by the underlying operating system. It is accomplished using the Java Virtual Machine.



 
by Dinesh Thakur Category: Java Evolution

The JRE is the smallest set of executables and files that constitute the standard java plot form.The Java Runtime Environment (JRE) provides the libraries, the Java Virtual Machine, and other components to run applets and applications written in the Java programming language. In addition, two key deployment technologies are part of the JRE:



 
by Dinesh Thakur Category: Java Evolution

History of Java: At first glance, it may appear that Java was developed specifically for the World Wide Web. However, interestingly enough, Java was developed independently of the web, and went through several stages of metamorphosis before reaching its current status of programming language for the World Wide Web. Below is a brief history of Java.

 


About Dinesh Thakur

Dinesh ThakurDinesh Thakur holds an B.SC (Computer Science), MCSE, MCDBA, CCNA, CCNP, A+, SCJP certifications. Dinesh authors the hugely popular blog. Where he writes how-to guides around Computer fundamental , computer software, Computer programming, and web apps. For any type of query or something that you think is missing, please feel free to Contact us.