1. findLast method

1. Explain what is wrong with the given code. Describe the fault precisely by proposing a modification to the code.
2. If possible, give a test case that does not execute the fault. If not, briefly explain why not.
3. If possible, give a test case that executes the fault, but does not result in an error state. If not, briefly explain why not.
4. If possible give a test case that results in an error, but not a failure. If not, briefly explain why not. Hint: Dont forget about the program counter.
5. For the given test case below, describe the first error state. Be sure to describe the complete state. Hint: Dont forget about the program counter.
6. Implement your repair and verify that the given test now produces the expected output. Submit a screenshot demonstrating your new program works.

/** * Find last index of element * * @param x array to search * @param y value to look for * @return last index of y in x; -1 if absent * @throws NullPointerException if x is null */ private static int findLast (int[] x, int y) { for (int i = x.length - 1; i > 0; i--) { if (x[i] == y) { return i; } } return -1; }

// test: x = [2, 3, 5]; y = 2; Expected = 0