Mystery

after each call below, write what is output for that call $-2$ pts each output

String sample$=$"this is a sample";

System.out.println $($sample$.$substring$(2,11))$;

PART $4$

$(5$pts each$)10$ pts

Trace the following method with each of the following arrays passed as its parameter, and

write the value it would return:

public static int mystery$1($int$[]$ list$)\{$

int x $=0,$y;

for $($int i $=1$; i $<$ list.length$-1$; i$++)\{$

y $=$ list$[$i$]-$ list$[1]$;

if $($y $<=$ x$)\{$

x$--$;;

$\}$

$\}$

return x;

$\}$

$\{4,2,10,15,20,8\}\_\_\_\_\_\_\_\_\_\_\_\_\_\_$

PART $5$

$(30$ pts$)$

$3.$ Write a method named find that returns the average value in an array of integers. For

example, if a variable named list refers to an array containing the values $\{16,12,25,$

$44\},$ the call of find $($list$)$ should return $24\mathrm{.}25$ You may assume that the array has at least

one element.

public class TestFind $\{$

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

int$[]$ a$1=\{16,12,25,44\}$;

System.out.println$($find $($a$1))$;

$\}$

$//$ your code goes here

$\}$