Introduction to Java Architecture and Installation

https://youtu.be/4EP8YzcN0hQ

Introduction

• extention .java
• compiler -> converts code file to byte code (in java) (.class file)
• java is platform independent - this means that java code complied on one machine can run on any other machine without recompiling
• JVM is platform dependent JVM runs the .class file

More about platform independence

• Java Virtual Machine (JVM) converts this bytecode to machine code
• jvm is machine dependent

JDK vs JRE vs JVM vs JIT

JDK (Java Development Kit)

• JDK is the software that you install on your computer to work with java

JRE (Java Runtime Environment)

Flow chart

JRE vs JVM

For example

• JRE is the box
• JVM is inside the box that does the work

JDE installation from oracle.com

• https://www.oracle.com/in/java/technologies/downloads/

IDE installation (IntelliJ community edition)

• https://www.jetbrains.com/idea/download/?section=mac

Resources

• Kunal Kushwaha’s video -> https://youtu.be/4EP8YzcN0hQ
• JDK download -> https://www.oracle.com/in/java/technologies/downloads/
• IntelliJ download -> https://www.jetbrains.com/idea/download/?section=mac

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