BASIC REQUIREMENT TO WORK IN JAVA IDE PART . 4
Basic Need To Run Java Program
jdk ( Java development kit )
jdk is the combination of java compiler(javac.exe),jre(jvm, library)
1 – Download the jdk from oracle web site.
2 – Install the jdk.
3 – How we can check jdk is installed?
Go to C:\Program Files\java\jdk1.8.0_241\bin
[jaac.exe file should be present]
Javac
This is java compiler and responsible to compile java program.
Java
Java file is responsible to run java program because it internally calls the Java virtual machine
First way of writing First java program
1 – If you want to keep your java program any where in your System than you have to register the java compiler path to the operating System.
2 – How to set the Environment variable.
A – Copy the path where java compiler is present.
“C:\Program Files\java\jdk1.8.0_241\bin”

B – Go to my computer -> Right click -> properties -> Advance system settings -> Environment variable -> New-give the variable name=path

Give the variable value = “C:\Program Files\java\jdk1.8.0_241\bin”
3 – Make a folder in your system any where name as my all java program.
4 – Open notepad normally.
5 – Open your Notepad run as Administrator {Right click on Notepad}
6 – Write Java Program in Notepad.
7 – Write the java program.
8 – Save the java program where your folder is present by using .java extension.
Note – File Name same as class Name [Recommended]
Open the cmd where your all program is present.
9 – Now compile program
cmd……..> javac filename…………enter….
Ex. -> java Demo.java
10 – Now Run program
…….javac className…………enter….
Ex. -> java Demo ………….enter .
Basic Require To Work In Java IDE
Application in compiler & software
Netbeans [ IDE (Integrated Development Environment) ]
Eclipse [ IDE (Integrated Development Environment) ]
BlueJ [ IDE (Integrated Development Environment) ]

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