Assume the availability of a public static method named s2f that takes two String arguments, the name of a file and some text. The method creates the file and writes the text to it. If the method is successful in doing this it returns true, otherwise false. Assume also the availability of a public static method named f2s that takes a single String argument, the name of a file. The method returns the contents of the file as a String. If the file cannot be opened the method returns null. Given these two methods, which are defined in the class FileUtils, write a method f2f that receives two String arguments, each a file name. The method copies the contents of the file associated with the first argument into the file associated with the second argument. In this exercise you should only use the two available methods s2f and f2s: you should not directly involve the Java IO classes. Your method should return true if successful, false otherwise.