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 apache2uninstall apache2 ubuntu
#How to completely remove Apache2 on Ubuntu 20.04 and similar distributions.
#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 apache2
@Oceangreen Technology - We Work For Excellencehow to do substring java
class Main {
public static void main (String[] args) {
String str = "Hello World!";
String firstWord = str.substring(0, 5);
//two parameters are start and end index: (inclusive, non-inclusive)
String secondWord = str.substring(6, 11);
//firstWord has string "Hello"
//secondWord has string "World"
}
}how to substring in java
class scratch{
public static void main(String[] args) {
String hey = "Hello World";
System.out.println( hey.substring(0, 5) );
// prints Hello;
}
}java get substring
// substring(int begin, int end)
String n = "hello there general kenobi";
System.out.println(n.substring(6, 11));
// -> "there"String... java
//Object... (here String...) means that you can give
//in parameter one or many objects of same type
func();
func("arg1", "arg2", "arg3");
String[] args = new String[]{"arg1", "arg2", "arg3"}
func(args);
void func(String... args);Copyright © 2021 Codeinu
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