Welcome folks today in this post we will be installing java jdk 15
version on Windows 10 in 2021. This will be a full tutorial on how to run a basic java program on windows 10
. All the steps will be given below.
Get Started
In order to check if java is already installed on your computer. You can check on cmd
by executing the following command
java -version
As you can see java
is not installed on our machine.
In order to get started we need to go to Official Oracle Website to Download the Latest Java JDK 15 on your computer.
And now this will download the exe
file inside your computer after it finishes it will look something like this
Now we need to open this exe
file and install java
inside our computer
And now click next
two times and then it will complete the installation process and at last you will see this screen which says java is successfully installed
on computer.
And now you can find the path on which java is installed
Go to My Computer
and then to Program Files
and then you will find a Java
folder like this
And then inside the java folder you will find the jdk
folder like this
Setting Path Variables
Now we need to set path
variables in order to completely access java
globally inside the system
So for that go to system advanced settings
like this
And after clicking environment variables we need to edit the system path
variable like this
So here we need to create a new entry inside the system path
variable and paste this path here for your jdk
1 |
C:\Program Files\Java\jdk-15.0.1\bin |
So now save this
and close the window
Now we need to create a new global variable
which is called as JAVA_HOME
so just click the new
button like this
So we are writing the following details
Variable Name: JAVA_HOME
Variable Value: C:\Program Files\Java\jdk-15.0.1
Now just click OK
button two more times to save it
So now congratulations Java
is installed on our system so you can again check by going to cmd and executing the following command to check version of java installed on the machine.
java -version
So you can see I have Java 15
installed on my computer.
Running Sample Java Program
Now we will make a sample java program on editor and running it
on computer
So now create a sample.java
file and copy paste the following code to it
sample.java
1 2 3 4 5 6 7 |
// Your First Program class HelloWorld { public static void main(String[] args) { System.out.println("Hello, World!"); } } |
So it’s a simple hello world
program which prints hello world on the screen.
First of all go to command prompt and execute this command to compile the .java
file to .class
file like this
javac sample.java
So once the command completes it will create the HelloWorld.class
file like this
So now run this .class
file by going to cmd and execute the following command
java HelloWorld
So you can see the program prints out hello world
on the screen