1. Suppose Language is a Java class with a single constructor public Language (int age, int rank). that initializes the instance's fields int theAge and int theRank. If Java is a subclass of Language (public class Java extends Language), write a Java constructor public Java (int age) that initializes the instance's theAge to the passed parameter, as well as sets its theRank to 1. 2. Explain how every Java object has a public String toString() method. 3. Describe how to declare a class which cannot be subclassed. Also describe how to declare a method within a class which cannot be overridden in any subclass