TECH KNOWLEDGE MASTER

JVM (Java Virtual Machine) JVM is a virtual machine which work on top of your operating system to provide a recommended environment for your compiled Java code. JVM only works with bytecode. Hence you need to compile your Java application(.java) so that it can be converted to bytecode format (also known as the .class file). Which then will be used by JVM to run application. JVM only provide the environment It needs the Java code library to run applications. JRE (Java Run time Environment) JRE contains everything required to   run   Java application which has already been compiled. It doesn’t contain the code library required to develop Java application. JDK (Java Development Kit) JDK contains everything that will be required to develop and run Java application.

 05, 2017 History of Java James Gosling initiated Java language project in June 1991 for use in one of his many set-top box projects. The language, initially called ‘Oak’ after an oak tree that stood outside Gosling's office, also went   by the name ‘Green’ and ended up later being renamed as Java, from a list of random words. Sun released the first public implementation as Java 1.0 in 1995. It promised   Write Once, Run Anywhere   (WORA), providing no-cost run-times on popular platforms. On 13 November, 2006, Sun released much of Java as free and open source software under the terms of the GNU General Public License (GPL). On 8 May, 2007, Sun finished the process, making all of Java's core code free and open-source, aside from a small portion of code to which Sun did not hold the copyright. Popular Java Editors To write your Java programs, you will need a text editor. There are even more sophisticated IDEs available in the market. But for now

Java Tutorial About JAVA TECH KNOWLEDGE MASTER, Java Tutorial Java is a high-level programming language originally developed by Sun Microsystems and released in 1995. Java runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX. This tutorial gives a complete understanding of Java. Java programming language was originally developed by Sun Micro systems which was initiated by James Gosling and released in 1995 as core component of Sun Micro systems' Java platform (Java 1.0 [J2SE]). The latest release of the Java Standard Edition is Java SE 8. With the advancement of Java and its widespread popularity, multiple configurations were built to suit various types of platforms. For example: J2EE for Enterprise Applications, J2ME for Mobile Applications. The new J2 versions were renamed as Java SE, Java EE, and Java ME respectively.  Java is − ◆ bject Oriented  − In Java, everything is an Object. Java can be easily extended since it is based

Python chapter 1 Hello, World TECH KNOWLEDGE MASTER, What you should know You should know how to edit programs in a text editor or IDLE, save the file and run the file once the files have been saved to your disk. Printing Programming tutorials since the beginning of time have started with a little program called "Hello, World! The syntax changed in Python 3.0. If you are using Python 3.0, you should be reading  Non-Programmer's Tutorial for Python 3  instead. So here is the Python 2.6 example: print "Hello, World!" If you are using the command line to run programs then type it in with a text editor, save it as  hello.py  and run it with  python hello.py Otherwise go into IDLE, create a new window, and create the program as in section  Creating and Running Programs . When this program is run here's what it prints: Hello, World! Now I'm not going to tell you this every time, but when I show you a program I recommend that you type it in

                                                 generation of  Computer A computer is an electronic device that manipulates information, or data. It has the ability to store, retrieve, and process data. You probably already know that you can use a computer to type documents, send email, play games, and browse the Web. You can also use it to edit or create spreadsheets, presentations, and even videos. => The computer as we know it today had its beginning with a 19th century English mathematics professor name Charles Babbage (Father of Computer). He designed the Analytical Engine and it was this design that the basic framework of the computers of today are based on. => Generally speaking, computers can be classified into 5 Generations. Each generation lasted for a certain period of time, and each gave us either a new and improved computer or an improvement to the existing computer. 1. First Generation (1936-1956) Vacuum Tubes a.  In 1937 the first electronic

Introduction of computer :      The year of 20 and 21st century has witnessed rapid developments in science and technology influencing every aspect of human life. One of the greatest things that man has ever created is, perhaps, 'the Computer'. The computer is truly an amazing machine. Computer is being used in areas of administration, medicine, education, sports, defence, shops, home, markets and many more. Computer and Information Technology (IT), in recent years, has become an integral part of our life. We can see it almost everywhere.     A computer is an electronic machine that helps to process data. It is used to solve problems relating to almost all fields such as education, home, medicine, science and technology, research, designing, publishing, communication etc.       A computer is an information-processing and information-accessing tool. This means that a computer accepts some information or data from the outside world. It processes it to produce a new