Пакеты

package pack;
class Book {
     private String title;
     private String author;
     private int pubDate;
  Book(String t,String a,int d){
     title = t;
     author = a;
     pubDate = d;
  }
void show(){
 System.out.println(title);
 System.out.println(author);
 System.out.println(pubDate);
 System.out.println();
}
}
  class BookDemo {
      public static void main(String[]arqs){
          Book books[] = new Book[5];
          books[0] = new Book("Java:Beginning","Shilt",2007);
          books[1] = new Book("Java:End","Shilt",2003);
          books[2] = new Book("The art of Java:Reference","Shilt",2003);
          books[3] = new Book("Red strorm:End","Shilt",2003);
          books[4] = new Book("Java:End","Shilt",2003);
         for(int i=0; i<books.length; i++) books[i].show();
      }
  }

package pack;
public class Book {
         private String title;
         private String author;
         private int pubDate;
 public Book(String t,String a,int d){
         title = t;
         author = a;
         pubDate = d;
  }
public void show(){
 System.out.println(title);
 System.out.println(author);
 System.out.println(pubDate);
 System.out.println();
}
}

package pack1;
  import pack.*;
  class BookDemo {
          public static void main(String[]arqs){
                  Book books[] = new Book[5];
                  books[0] = new Book("Java:Beginning","Shilt",2007);
                  books[1] = new Book("Java:End","Shilt",2003);
                  books[2] = new Book("The art of Java:Reference","Shilt",2003);
                  books[3] = new Book("Red strorm:End","Shilt",2003);
                  books[4] = new Book("Java:End","Shilt",2003);
                 for(int i=0; i<books.length; i++) books[i].show();
          }
  }