1 FindAndReplace Complete the implementation of the (static) String[] findAndReplace(String[] in, String[] what, String[] with) class method of the Utils class. This method returns a copy of the array denoted by the reference in where all the words found in the array denoted by what have been replaced by the word found at the same position in the array with. The array designated by in remains unchanged by a call to the method. The findAndReplace method returns null when one of these prerequisites is not met: In particular, the value of formal parameters cannot be null. The value of array elements cannot be null. Arrays denoted by what and with references must be the same length.