Java introduction class

Fundamental of Java 8:
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Java -- 1995
C/ C++
Python
C#
PHP
======================
Features of Java:--

1. Plateform Independent
2. Object Oriented Prog Lang.
3. Secure
4. Robust
5. Multithreaded
6. Internationalization Support
7. Easy and simple
8. Free and opensource

What is plateform-- software(OS) + hardware(MicroProcessor)

C/C++ :-- plateform dependent



void main(){
printf("Hello Friends");
}


Who will call main() of C/C++:--
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Operating System

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Java :-- plateform Independent
-------------------------------

public class A
{

public static void main(String[] shad){

System.out.println("Hello Friends");

}
}

Who will call main() of Java:--
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WINDOWS::: A.java ---Compile -- A.class --JVM --- RUN --Output

LINUX::: A.java ---Compile -- A.class --JVM --- RUN --Output

Question:: can we run Java App on an Iphone??

Java is plateform independent, but highly JVM dependent..

JVM acts as OS as well as microprocessor

--Plateform -- abstract computer

JDK -- Java Developemnt Kit -- (Developer)-- Compiler + JVM
JRE -- Java Runtime Environment -- (Client) JVM

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Please watch: "Session 4_dict_range_operations "
https://www.youtube.com/watch?v=PE4HtXc3aRI
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