What is the time complexity of the following Java code?

public static void doSomething$($int n$)\{$

for $($int i $=0$; i $<$ n$*$n; i$++)\{$

System.out.println$("$I love asymptotic analysis"$)$;

$\}$

$\}$

public static void main$($String$[]$ args$)\{$

Scanner keyboard $=$ new Scanner$($System$.$in$)$;

$//$ User types in the value of n

int n $=$ Integer.parseInt$($keyboard$.$nextLine$())$;

for $($int i$=$n; i$>0$; i$--)\{$

doSomething$($n$)$;

$\}$

$\}$