How do I view the Java process and get the process ID?

1. Pressing the TAB key after entering 1-2 characters on the LINUX command platform automatically complements the next part (provided that you have this thing, for example, if you have Tomcat, enter Tomcat to press TAB).
2. The PS command is used to view the currently running process.
grep is a search
Example: Ps-ef | grep java
Represents the process information for viewing all processes where CMD is Java
Ps-aux | grep java
-aux Show All States
Ps
3. Kill command to terminate the process
Example: kill-9 [PID]
-9 means the forced process stops immediately
Usually use PS to view the process PID, terminate the process with the KILL command

How do I view the Java process and get the process ID?