Author and Book classes, with their respective testing programs

Author.java

//COMPILES!!!!!
/*public getters/setters: getName(), getEmail(), setEmail(), and getGender();
(There are no setters for name and gender, as these attributes cannot be changed.)
A toString() method that returns "author-name (gender) at email", e.g., "Tan Ah Teck (m) at [email protected]".*/
public class Author{
	private String name;
	private String email;
	private char gender;

	public Author (String name, String email, char gender){
		this.name = name;
		this.email = email;
		this.gender = gender;
	}

	public String getName(){
		return this.name;
	}

	public String getEmail(){
		return this.email;
	}

	public void setEmail(String email){
		this.email = email;
	}

	public char getGender() {
		return this.gender;
	} 

	public String toString(){
		String completeAuthor = (this.name + " (" + this.gender + ") " + "@" + this.email);
		return completeAuthor;
	}

}

Book.java

public class Book {
	private String name;
	private Author author;
	private double price;
	private int qtyInStock = 0;

	public Book(String name, Author author, double price){
		this.name = name;
		this.author = author;
		this.price = price;
	}

	public Book(String name, Author author, double price, int qtyInStock){
		this.name = name;
		this.author = author;
		this.price = price;
		this.qtyInStock = qtyInStock;
	}

	public String getName(){
			return this.name;
	}
	
	public Author getAuthor(){
			return this.author;
	}

	public void setPrice(double price){
			this.price = price;
	}

	public int getQtyInStock(){
			return this.getQtyInStock;
	}

	public void setQtyInStock(int qtyInStock){
			this.qtyInStock = qtyInStock;
	}

	public String toString(){
		String title = (name + "by" + author.toString());
		return title;
	}

	public String getAuthorName(Book oneBook){
		String authorName = oneBook.getAuthor().getName();
		return authorName;
	}

	public String getAuthorEmail(Book oneBook){
		String authorEmail = oneBook.getAuthor().getEmail();
		return authorEmail;
	}

	public char getAuthorGender(Book oneBook){
		char authorGender = oneBook.getAuthor().getGender();
		return authorGender;
	}

//dsda

}

TestAuthor.java

public class TestAuthor{
	
	public static void main (String[] args){
		Author authorOG = new author("Jorge Olvera", "[email protected]", 'm');

			System.out.println(authorOG.getName());
			System.out.println(authorOG.getEmail());
			authorOG.setEmail("eeelolvera.com");
			System.out.println("New email is " + authorOG.getEmail());
			System.out.println("Gender is" + authorOG.getGender());
			System.out.println("Author info is" + authorOG.toString());	

	}
}

testBook.java

public class testBook{
	public static void main (String [] args){

		Author authorOG = new author("Jorge Olvera", "[email protected]", 'm');

		Book oneBook = new Book(oneBook.getAuthor().getName(), oneBook.getAuthor.getEmail());

			System.out.println("Author: " + oneBook.getAuthorName(oneBook));
			System.out.println("Author's E-mail: " + oneBook.getAuthorEmail(oneBook));
			System.out.println("Gender: " + oneBook.getAuthorGender(oneBook));
	}
}