I just installed deepin 15.5 to experience it recently. In order to facilitate Java development, you need to configure environment variables. I am configuring Java8
Specific steps
Open a terminal and enter the following commands in sequence
sudo apt-get install python-software-properties sudo apt-get update sudo apt install software-properties-common sudo apt-get update sudo add-apt-repository ppa:webupd8team/java
Success, next update
sudo apt-get update
Finally install, follow the prompts
sudo apt-get install oracle-java8-installer
After success, you can view it with the following command
Java -version
Just like this, the installation is successful
wang@wang-PC:~$ java -version Picked up _JAVA_OPTIONS: -Dawt.useSystemAAFontSettings=gasp java version "1.8.0_171" Java(TM) SE Runtime Environment (build 1.8.0_171-b11) Java HotSpot(TM) 64-Bit Server VM (build 25.171-b11, mixed mode) wang@wang-PC: ~ $