Example $6$

$/**$ Returns false if there is any element common to two arrays. $*/$

public static boolean example$6($int$[]$ data$)\{$

int n $=$ data.length;

for $($int j$=0$; j $<$ n$-1$; j$++)$

for $($int k$=$j$+1$; k $<$ n; k$++)$

if $($data$[$j$]==$ data$[$k$])$

return false; $//$ found duplicate pair

return true; $//$ if we reach this, elements are unique

$\}$