The newSecondHalf$()$ method takes in two parameters: one integer array and one integer. newSecondHalf$()$ returns a new array reference where the first half contains the same elements as the first half of the array parameter and each element of the second half is the integer parameter. Call newSecondHalf$()$ with startNumbers and changeVal as arguments and assign endNumbers with the returned array reference.

Ex: If the input is:

$14121315$

$6$

then the output is:

$141266$