Which of the following statements about arrays and ArrayLists in Java are true? I. An Array has a fixed length. II. An Array can grow and shrink dynamically as required. III. An ArrayList can store multiple object types. IV. In an ArrayList you need to know the length and the current number of elements stored. I I and III only None of these I, II, and III only I, II, III and IV Which of the following statements prevent a method from being overriden? Static final void act() {} Final abstract void acto){} None of these Void final act() {} The documentation of a class lists a method castToIntArray that has a double array as a formal parameter and retums an array of integers. What is the signature of the method? public [] cascIoIntrray (double a) public int) castToInterray ( doubles a) public void cas:ToIntArray (double [] a) public int[] castToIntrray ( )