Java programs that do the following:

Finds the first number in an array divisible by 77 and returns it. If no number is found, the function returns -1

Creates an array of all the powers of two, up to (and including) the given exponent starting at 2^0. If the given exponent is less than zero, return an empty array.

Given two arrays of integers that are the same length, returns a new array that contains the pairwise max of the corresponding elements of the original arrays (i.e. the larger of the two numbers in that slot in the original arrays)

Given two arrays, count the number of times the first array occurs in the second array. You can assume that the first array is shorter than the second.