remove apache2 from ubuntu
#stop the apache2 service
$ sudo systemctl stop apache2
#remove apache2 packages
$ sudo apt-get purge apache2 apache2-utils apache2-bin apache2.2-common
# cleanup
$ sudo apt-get autoremove
# check if the apache has been removed:
#1- following command line should return a blank line
$ which apache2
# 2- following command line should return apache2: Failed to start apache2.service: Unit apache2.service not found.
$ sudo systemctl start apache2restart apache ubuntu
# Restart Apache 2 server on Linux/Unix
sudo service apache2 restart
# Start Apache 2 server on Linux/Unix
sudo service apache2 start
# Stop Apache 2 server on Linux/Unix
sudo service apache2 stoprestart apache ubuntu
# Restart apche 2 server.
sudo service apache2 restart
or
sudo systemctl restart apache2
# Gracefully reloading is a bit faster, and there's no downtime
sudo service apache2 reloadjava const
//final variable value can't be changed
private final int VAR = 0;what does const mean in java
Although reserved as a keyword in Java, const is not used and has
no function.Copyright © 2021 Codeinu
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