if $($ average $=100)$

System.out.println$($Perfect Average!$)$;

$2.$ int count $=1,$ total;

while $($count $<=100)$

total $+=$ count;

$3.$ for $($int count $=1,$ count $<=10,$ count$++$;$)$

System.out.println$($count$)$;

$4.$ public static int half$($double num$)$

$\{$

double result $=$ num $/2\mathrm{.}0$;

return result;