1. Give a Java code example showing the syntax for defining a function/method that returns an array to the caller. (You do not need to show the declaration of the array, only the fact that an array is returned.)

2. Write a Java code fragment that includes allocation of an array of type int containing 20 elements, sets the first element to a value of zero and the second to 1, then a for loop that iterates through the elements starting with the third element, setting the value of the third and later elements to the sum of the preceding two elements. (In other words, starting with the third element, if i is the index of the element being processed, the value will be the sum of the values contained in elements i-1 and i-2.)
3. Write the definition of a method that is an accessor (getter) for the instance variable length, which is of type double. Specifically, you are to name the method according to the common convention, and provide the appropriate access type, return type, etc. You do not need to write the declaration of the class, nor of any of the other members.