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Installation JDK (download and install the Java library for Windows)
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 What is JDK ... download and install for Windows 
last updated: 29 January 2025
JDK (Java Development Kit) is a large package to compile and run a Java program.

JDK has:
javac compiler
we write a java file, and the compiler compiles (converts) our java file into a .class file (bytecode)
jre
jre (Java Runtime Environment) is an environment that loads .class files and executes bytecode.

If we fully describe what JRE is, then this is the implementation of Java virtual machine.
Java virtual machine contains and performs:
Classloader to load .class files in which bytecode
• compiler JIT (just-in-time) for dynamic compilation of bytecode at runtime
• thread control
• garbage collector for automatic memory management. At Java, we don't write code to remove an object from memory, that's done by the garbage collector. The garbage collector deletes an object when it is not needed.
jdb
Java Debugger
Step 1. Download JDK for Windows
You need to download Java JDK from the official website https://www.oracle.com/cis/java/technologies/downloads

Version JDK Development Kit 23.0.1 can be downloaded from Google Disk ...

Installing Java JDK for Windows takes 205 mb
I'll select the Windows tab and x64 Installer
Step 2. Installation JDK
Press Next ... Next ... Next ...
 
 
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