PART 1 Problem #1 (20 pts): Answer the following questions Answer 1) Given an array of integers A, write the code to print the difference between the size of the array and the value of its first element Example if the array is A - (2, 5, 3, 7, 1), then the difference is 5-2-3 2) I What is the header of a method named doubleValues which takes as argument an array of decimal numbers and doubles all the elements in the array. This method doesn't return a value. Do NOT write the body of the method. 3) Use the shorthand notation to create an array of characters of size 4 and initialize it with the following values respectively: 2, C, D