book.java

来自「国外的数据结构与算法分析用书」· Java 代码 · 共 24 行

/**	A class representing a book.  It has instance variables 
	title, author, and isbn number, and a toString method. */
public class Book
{
	/**	Attributes of a book */
	protected String title, author, isbn;

	/**	Create a new book 
		Analysis: Time = O(1) */
	public Book(String t, String a, String i)
	{
		title = new String(t);
		author = new String(a);
		isbn = new String(i);
	}

	/**	A string representation of the book. 
		Analysis: Time = O(1) */
	public String toString()
	{
		return "\n Title:  " + title + ",  Author: " + author + ",  Isbn:   " + isbn + "\n";
	}
}