Question $1.$ What method must a class such as String or Name define so that OrderedPair$$s method toString$()$ works correctly?

Question $2.$ Consider the class OrderedPair, as given in Listing J$1-2.$ Suppose that we did not use a generic type, but instead omitted and declared the data types of the private fields, method parameters, and local variable to be Object instead of T$.$ What would the effect of these changes be on the use of the class?