public boolean isprefix$($String s$1,$ String s$2)\{$

int $i=$;

if$($s$1.$length $>$ s$2.$ length$)$

return false;

while$($i$s1n(n+2)4x(n+2)4**(n+2)n,$ the length $of$ the string $s1.$

Hint: simplify your final answer $as$ much $as$ possible, and $do$ not put spaces $in$ your answer. Use juxtaposition for the multiplication

operator, for example $to$ write "nine times $n"$ write $"9n"$ not $"9xn"or"9*n"$; $to$ write "four times $(n+2)"$ write $"4(n+2)",$ not $"4x(n+2)"$

$or"4**(n+2)".Do$ not write your answer $in$ Big$-O$ notation. Write the exact number $of$ lines executed.