JAVA Tutorial : You Know Why JAVA is Platform Independent? | coderbaba смотреть онлайн

why java is a Platform Independent programming language .tutorial in Hindi.
** JAVA Featured **
-it is Platform Independent .
-Simple
-Object Orientation

Question- What is meant by Platform Independent?
"Platform Independent means write codes in one OS 'Windows" and executing that code on another platform 'Linux'
(WORA) Write Once and Run Anywhere is called Platform Independent"

Q-2 What is Byte-code:
Byte-code is the machine language of JAVA VIRTUAL MACHINE, by using byte-code execution of Java program prove's it is a Platform Independent language .
Q3- Plain Text file (Source code file):
write your source code in a pain text file and save it by extension (.java) is called source code of java

Q-4 JavaC :
using javac compiler source code is compile into .class file

Q-5 JVM:
javac compiler and JIT present inside in JVM.
JVM convert the bytecode or class file (.class) into executable code that called (.obj ).

Q-6 .obj file:
using this file generate the output

Q-7 JIT (JUST IN TIME):
It a type of compiler that converts program source code into native machine code just before running the program.
it is faster and more efficient to perform huge application.

Different types of JVM available on different Operating system.
1-Sun-micro System JVM
2-Microsoft JVM
3-IBM JVM

using JVM same .class files can run on various platforms.

this is the way bytecode executes java programs.
and proves java is a platform independent.

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