java环境变量配置英文视频教程

Introduction

Java is a programming language and computing platform originally released by Sun Microsystems in 1995. It is important to have Java Runtime Environment (JRE) installed in your system for running Java-based software. In this tutorial, we will learn how to configure environment variables for Java on Windows operating system.

Setting up the environment variables

The first step towards setting up the environment variables is to check whether Java is already installed in the system or not. To do this, open the command prompt and type "java -version". This will display the current version of Java installed in the system. If Java is not installed, download the latest version of JRE from the official website and install it.

Once Java is installed, set up the environment variables by following the steps given below:

1. Right-click on "My Computer" and select "Properties".
2. Click on "Advanced system settings" on the left-hand side of the screen.
3. Click on the "Environment Variables" button at the bottom of the window.
4. Under "System Variables," click on "New."
5. In the "Variable name" field, enter "JAVA_HOME".
6. In the "Variable value" field, enter the path of the Java directory that contains the "bin" folder. For example, "C:Program FilesJavajdk1.8.0_201"
7. Click "OK" and close all open windows.

Checking the environment variables

To check if the environment variables are configured correctly or not, open the command prompt and type "echo %JAVA_HOME%". This command will display the value of the "JAVA_HOME" variable. If the output is the correct path of the Java directory, then the environment variables are set up correctly.

Similarly, to verify that your system is configured to use the correct version of Java, type "java -version". This command will display the version of Java that is being used by the system currently.

Conclusion

Configuring environment variables correctly is essential for running Java-based applications in your system. In this tutorial, we learned how to set up environment variables for Java on Windows operating system. By following the steps given in this tutorial, you will be able to configure the environment variables correctly and use Java-based software without any issues.