In the Ubuntu environment, quickly build and configure the Java development environment through the command line

In the Ubuntu environment, you can quickly build and configure the Java development environment through the command line. The specific steps are as follows:

1. Update the Ubuntu system Use the following command to update the Ubuntu system:

sudo apt-getupdate
sudo apt-get upgrade

2. Install the Java Development Kit (JDK) Install the JDK with the following command:

sudo apt-get install default-jdk

After the installation is complete, use the following command to check the Java version:

java -version

3. Configure Java environment variables Open the environment variable configuration file with the following command:

sudo nano /etc/environment

Add the following content at the end of the file (replace with your own JDK path):

Note: Get the path of the installed JDK

update-alternatives --config java

The path of the installed JDK is: /usr/lib/jvm/java-8-openjdk-amd64

JAVA_HOME="/usr/lib/jvm/java-11-openjdk-amd64"
PATH=$PATH:$JAVA_HOME/bin

Save the file and exit. Use the following command to make the environment variable take effect immediately:

source /etc/environment

4. To install Java development tools (IDE), you can choose to install Java development tools such as Eclipse or IntelliJ IDEA. Here is an example of installing Eclipse:

sudo apt-get install eclipse

5. Start Java Development Tools Start Eclipse with the following command:

eclipse

So far, the process of building and configuring the Java development environment in the Ubuntu environment is complete.

Note: This method is generated by GhatGPT.