How to run java program in command prompt and eclipse (JDK installation)

https://computerapplication760.blogspot.com/
This video is about setting up java Development kit for java programming in command prompt. and eclipse ....
Compiling and running/execute java program;
(first go to folder(in cmd) where your HelloWorld.java is present,)
-java HelloWorld(This will execute java compiled file.)
-java HelloWorld(this will execute java compiled file.)
PROGRAM 1:- #filename -- HelloWorld.java
package introdection;
public class HelloWorld{
public static void main(string[ ] args){
System.out.println("Hello world");
}
}
OUTPUT:-
Hello world
.
.
.
Command prompt tips:
-cd = change directory; ex: cd OneDrive
-dir = directory listing; it show all files present in current directory/folder

CURRENT DIRECTORY/FOLDER:-
- cd = to go back to previous folder
- E = to change drive, simple type drive letter and :
-exit = close command prompt

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DOWNLOAD LINK:-
JDK install :-
https://www.oracle.com/in/java/technologies/javase-downloads.html
Eclipse install :-
https://www.eclipse.org/downloads/