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Friday, 31 January 2014

Internals of JVM





     
           We have learnt The Three Java BigShots - JDK,JVM,JRE. Also , we have seen the  Java Development Kit in (JDK) detail  . Now we will learn in depth about the Java Virtual Machine (JVM).  Java Virtual Machine is an abstract machine.
JVM is platform dependent execution environment that converts Java bytecode into machine laguage and executes it. 
Sun Microsystems has stated that there are over 5.5 billion JVM-enabled devices.



Saturday, 25 January 2014

What is inside JDK ?


         We have already seen the Three Bigshots of Java - JDK , JRE , JVM .Now we will see what actually does the Java Development Kit (JDK) contains. The Java Development Kit (JDK) is a Sun Microsystems product aimed at Java developers . On 17 November , 2006 , Sun released it under the General Public License , thus making it free software . This happened in large part on 8 May 2007, when Sun contributed the source code to the OpenJDK

Dissecting the First Java Program You Created


                      In the previous post Hello World - First Java Program we have learnt how to compile and run a Java Program. Now after learning that , here we will learn the meaning of the basic terms involved in the program . Also , what actually happened when we compile and run the program.So we will be dissecting our first Java Program - Hello World.
                (Note : Before reading this post , please atleast have a glance at the previous post . Click here .)

Friday, 24 January 2014

Hello World - First Java Program

      Hello World      We have learnt many things about Java in theory. Now , it's time to write our first actual application or a program. It’s traditional or say conventional to start learning a new programming language by writing a program called "Hello World". You can think of it as a very simple initiation into the ranks of Java programmers. All the program does is write the text "Hello World" to your computer screen.
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