Find two different approaches to alter the following selectionsort method so that it sorts in descending order instead of ascending order.

public static void selectionSort$($int$[]$ elem$)\{$

for $($int $j=0$;$j$ elem.length $-1$;$j++)\{$

int minIdx $=j$;

for$($int $k=j+1$;$k$ elem.length; $k++)\{$

if$($elem$[$k$]$ elem$[$minIdx$])$

minIdx$=k$;

$\}$

if$($elem$[$minIdx$]$ elem$[$j$])\{$

int temp $=$ elem$[$j$]$;

elem $[j]=$ elem$[$minIdx$]$;

elem$[$minIdx$]=$ temp;

$\}$

$\}$

$\}$