public class StringBag { // the array to hold the data private String [] bag; // the number of elements being held (also the next index where a new // String can be put). private int count; public StringBag(int length) { bag = new String[length]; count = 0; } } d. [2 points] Write a function that determines if a String exists in the StringBag. It should return true if it does, and false if it does not. i. Write your test case for this method. @Test public void testContains() { // Replace this test with your code } ii. Write your method. public boolean contains(String item) { // Replace this test with your code }