(I can't compile it .I don't know how to write constructor in Initial Class

Question

All class and main program is OK except the inital class.
Author Class
class Author {
private String authorName;
private Initials inits;
private int numTitles = 0;
// PRE True POST Prompts user for details
// and RETURNS new Author constructed from details
public Author(BufferedReader in) {
System.out.print("\nSurname ==> ");
authorName = Text.ReadString(in);
inits = new Initials(in);
numTitles = 0;
// PRE TRUE
// POST RETURNS String representation of Author
public String toString() {
String result;
result = "NAME : " + authorName + " " + inits.toString() + "\n";
result = result + "Number of titles is " + numTitles;
return(result);
// PRE TRUE
// POST Increments number of titles
public void incTitles() {
numTitles++;
Book Class
public class Book {
private String title;
private Author author;
// PRE TRUE // POST Prompts user for details
// and RETURNS new Author constructed from details
public Book(Author author, BufferedReader in) {
System.out.print("\nTitle ==> ");
title = Text.ReadString(in);
this.author = author;
author.incTitles();
// PRE TRUE
// POST RETURNS String representation of Book
public String toString() {
String result;
result = "TITLE : " + title + "\n";
result = result + "AUTHOR\n" + author.toString() + "\n";
return(result);
*****Initial Class (I can't compile it . I don't know how to write constructor
class Initials
{   private char[] inits;
     public Initials(BufferedReader in)
     System.out.print("\nInitails Testing ==> ");
     inits = Text.ReadString(in);
     public String toString()
          String result;
          result="Testing";
          return(result);
Main program
public class BookMain {
static private BufferedReader in = new BufferedReader(new                                    InputStreamReader(System.in));
public static void main(String[] args) {
Author authorRec1, authorRec2;
Book bookRec1, bookRec2;
System.out.println("\n\n****** First author input");
authorRec1 = new Author(in);
System.out.println("\n\n****** First author output\n" + authorRec1.toString());
System.out.println("\n\n****** Second author input");
authorRec2 = new Author(in);
System.out.println("\n\n****** Second author output\n" + authorRec2.toString());
     System.out.println("\n\n****** First book input");
bookRec1 = new Book(authorRec2, in);
System.out.println("\n\n****** First book output\n" + bookRec1.toString());
System.out.println("\n\n****** Second book input");
bookRec2 = new Book(authorRec2, in);
System.out.println("\n\n****** Second book output\n" + bookRec2.toString());
System.out.println("\n\n****** First book output\n" + bookRec1.toString());

Answer 1

Change this
class Initials {
private char[] inits;
to this
class Initials {
private String inits;
import java.io.*;
public class BookTest {
  static private BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
  public static void main(String[] args) {
    Author authorRec1, authorRec2;
    Book bookRec1, bookRec2;
    System.out.println("\n\n****** First author input");
    authorRec1 = new Author(in);
    System.out.println("\n\n****** First author output\n" + authorRec1.toString());
    System.out.println("\n\n****** Second author input");
    authorRec2 = new Author(in);
    System.out.println("\n\n****** Second author output\n" + authorRec2.toString());
    System.out.println("\n\n****** First book input");
    bookRec1 = new Book(authorRec2, in);
    System.out.println("\n\n****** First book output\n" + bookRec1.toString());
    System.out.println("\n\n****** Second book input");
    bookRec2 = new Book(authorRec2, in);
    System.out.println("\n\n****** Second book output\n" + bookRec2.toString());
    System.out.println("\n\n****** First book output\n" + bookRec1.toString());
class Author {
  private String authorName;
  private Initials inits;
  private int numTitles = 0;
  // PRE True POST Prompts user for details
  // and RETURNS new Author constructed from details
  public Author(BufferedReader in) {
    System.out.print("\nSurname ==> ");
    authorName = Text.ReadString(in);
    inits = new Initials(in);
    numTitles = 0;
  // PRE TRUE
  // POST RETURNS String representation of Author
  public String toString() {
    String result;
    result = "NAME : " + authorName + " " + inits.toString() + "\n";
    result = result + "Number of titles is " + numTitles;
    return(result);
  // PRE TRUE
  // POST Increments number of titles
  public void incTitles() {
    numTitles++;
class Book {
  private String title;
  private Author author;
  // PRE TRUE // POST Prompts user for details
  // and RETURNS new Author constructed from details
  public Book(Author author, BufferedReader in) {
    System.out.print("\nTitle ==> ");
    title = Text.ReadString(in);
    this.author = author;
    author.incTitles();
  // PRE TRUE
  // POST RETURNS String representation of Book
  public String toString() {
    String result;
    result = "TITLE : " + title + "\n";
    result = result + "AUTHOR\n" + author.toString() + "\n";
    return(result);
class Initials {
  private String inits;
  public Initials(BufferedReader in) {
    System.out.print("\nInitails Testing ==> ");
    inits = Text.ReadString(in);
  public String toString() {
    String result;
    result = inits;
    return(result);
class Text {
  static String ReadString(BufferedReader in) {
    String text = "";
    try {
      text = in.readLine();
    catch (IOException e) {
      System.out.println(e.getMessage());
      System.exit(0);
    return text;
}