How to Install Java on Windows {Step-by-Step Guide}

Check if Java Is Installed presentation
The Java Development Kit ( JDK ) is software used for Java scheduling, along with the Java Virtual Machine ( JVM ) and the Java Runtime Environment ( JRE ). The JDK includes the compiler and class libraries, allowing developers to create Java programs feasible by the JVM and JRE .
In this tutorial, you will learn to install the Java Development Kit on Windows.

How to install Java on Windows.
Prerequisites

  • A system running Windows 10.
  • A network connection.
  • Administrator privileges.


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Check if Java Is Installed

Before installing the Java Development Kit, check if a Java adaptation is already installed on Windows. Follow the steps below :

  1. Open a command prompt by typing cmd in the search bar and press Enter.
  2. Run the following command:
java -version

Windows not recognizing the java command because Java isn't installed. The command outputs the Java interpretation on your system. If Java is n’t installed, the output is a message stating that Java is n’t recognized as an internal or external dominate .

Download Java for Windows 10

Download the latest Java Development Kit facility charge for Windows 10 to have the latest features and microbe fixes .

  1. Using your preferred web browser, navigate to the Oracle Java Downloads page.
  2. On the Downloads page, click the x64 Installer download link under the Windows category. At the time of writing this article, Java version 17 is the latest long-term support Java version.

Download the Java Development Kit installation file from Oracle. Wait for the download to complete .

Install Java on Windows 10

After downloading the installation file, proceed with installing Java on your Windows system .
Follow the steps below :

Step 1: Run the Downloaded File

Double-click the downloaded file to start the facility .

Step 2: Configure the Installation Wizard

After running the initiation file, the initiation wizard welcome sieve appears .
1. Click Next to proceed to the adjacent footstep .
The welcome screen of the Java installation wizard. 2. Choose the destination folder for the Java facility files or stay to the default path. Click Next to proceed .
Choose where to install Java. 3. Wait for the ace to finish the installation action until the Successfully Installed message appears. Click Close to exit the sorcerer .
Java installation wizard - successful installation.

Set Environmental Variables in Java

Set Java environment variables to enable program compiling from any directory. To do sol, follow the steps below :

Step 1: Add Java to System Variables

1. Open the Start menu and search for environment variables .
2. Select the Edit the system environment variables result .
Find the Edit system environment variables option. 3. In the System Properties window, under the Advanced tab, cluck Environment Variables…
Locating the Environment variables option under System properties in Windows. 4. Under the System variables class, select the Path variable star and click Edit :
Editing the Path variable in Windows. 5. Click the New button and enter the path to the Java bin directory :

Adding a new Java variable in Windows.
Note: The default option path is normally C : \Program Files\Java\jdk-17.0.1\bin .
6. Click OK to save the changes and passing the variable edit windowpane .

Step 2: Add JAVA_HOME Variable

Some applications require the JAVA_HOME variable. Follow the steps below to create the variable :
1. In the Environment Variables window, under the System variables class, click the New… clitoris to create a fresh variable .
Create a new JAVA_HOME variable in Windows. 2. Name the variable as JAVA_HOME .
3. In the variable respect field, paste the path to your Java jdk directory and suction stop OK .
add java home environment variable 4. Confirm the changes by clicking OK in the Environment Variables and System properties windows .

Test the Java Installation

Run the java -version command in the dominate prompt to make surely Java installed correctly :
Running the java command to see Java version on Windows. If installed correctly, the command outputs the Java version. Make sure everything works by writing a simpleton program and compiling it. Follow the steps below :

Step 1: Write a Test Java Script

1. Open a text editor such as Notepad++ and create a new file .
2. Enter the watch lines of code and cluck Save :

class HelloWorld{
	public static void main(String args[]){
		System.out.println("Hello world!");
		}
}

Writing a Java program to test if the installation works. 3. Name the file and save it as a Java source file (*.java) .
Saving the Java program in Windows.
Note: When using Notepad, choose All files for the Save as type option and add the .java elongation to the file name .

Step 2: Compile the Test Java Script

1. In the command immediate, change the directory to the file ‘s localization and use the follow syntax to compile the program :

javac [filename]

For model :
Compiling a Java program using the command prompt. After a successful compilation, the program generates a .class file in the file directory .
2. Run the plan with the stick to syntax :

java [filename]

Run a java Hello world program using the command prompt. The end product shows that the course of study runs correctly, displaying the Hello world ! message .
conclusion
This tutorial showed how to install the Java Development Kit on a Windows organization. If you are interested in learning more about Java, read our tilt of 13 best Java IDEs for writing, debug, and testing Java code .

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