a.) Write the definition of the default constructor of YClass so that the instance variables of YClasa are initialized to 0.  b.) Write the definition of the default constructor of XClass so that the instance variable of XClass are initialized to 0. c.) Write the definition of the method two of YClass so that rhe instance variable a is initialized to the value of the first parameter of two, and the instance variable b is initialized to the value of the second parameter of two.

Implement a nested class composition relationship between any two class types from the following list: Advisor Вook Classroom Department Friend Grade School Student Teacher Tutor Write all necessary code for both classes to demonstrate a nested composition relationship including the following: a. one encapsulated data member for each class b. inline default constructor using constructor delegation for each class c. inline one-parameter constructor for each class d. inline accessors for all data members e. inline mutators for all data members

Instructions-Java Assignment is to define a class named Address. The Address class will have three private instance variables: an int named street_number a String named street_name and a String named state. Write three constructors for the Address class: an empty constructor (no input parameters) that initializes the three instance variables with default values of your choice, a constructor that takes the street values as input but defaults the state to "Arizona", and a constructor that takes all three pieces of information as input Next create a driver class named Main.java. Put public static void main here and test out your class by creating three instances of Address, one using each of the constructors. You can choose the particular address values that are used. I recommend you make them up and do not use actual addresses. Run your code to make sure it works.  Next add the following public methods to the Address class and test them from main as you go: Write getters and…

Define a default constructor that initializes the data members, string title and integer year, with the default values "Empty" and -1, respectively. Ex: If the input is Magnolia 1989, then the output is: Title: Empty, Year: -1 Title: Magnolia, Year: 1989 Note: The class's print function is called first after the default constructor, then again after the inputs are passed to the setters. 5 class Book { 6 public: 7 8 9 10 11 12 13 14 15 }; 16 Book(); void SetTitle(string bookTitle); void Set Year (int bookYear); void Print (); private: string title; int year; 17 Your code goes here */ 18 19 void Book::SetTitle(string hook Title) { CS Scarint (19 bi Title mscanner 22 23 void Book Set Year(int bookYear) [ 2