Beginner package help please

[Frank Metzger]

I am working an example from a book, the topic is on packages. The code listed below compiles fine if "package BookPack" is commented out. If package BookPack is not commented out I get the following pre-compile error: class, interface or enum expected. The book suggests, "create the package directories below your current development directory. Well I think my development directory is the one that contains the .java file I'm working with, in this case that is hsbookdemo.java. The path is listed here: C:\Documents and Settings\DS\My Documents\NetBeansProjects\HSBookDemo\src\hsbookdemo Now, how do I create a package directory? And where is below? Is the package directory placed here: C:\....\HSBookDemo\src\hsbookdemo\bookpackage. Where bookpackage is the package directory.

The book also says, " to put the class files into the appropriate directories". I found class files in this path: C:\....\HSBookDemo\build\classes\hsbookdemo[b] This path has the files: [b] HSBookDemo.rs, HSBookDemo.class, Book.class. The book finally says,"execute the programs from the development directory". Does any of this mean I have to use the command prompt with: java BookPack.BookDemo. If so, I gave up with the command prompt along time ago and downloaded an IDE. I use the NetBeans IDE. The code is listed below:

package hsbookdemo;

package BookPack;  
  
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(); 
  }  
}  
public class HSBookDemo {
    public static void main(String[] args) {
        Book books[] = new Book[5];  
  
    books[0] = new Book("Java: A Beginner's Guide", 
                        "Schildt", 2007);  
    books[1] = new Book("Java: The Complete Reference", 
                        "Schildt", 2007); 
    books[2] = new Book("The Art of Java", 
                        "Schildt and Holmes", 2003); 
    books[3] = new Book("Red Storm Rising", 
                         "Clancy", 1986);  
    books[4] = new Book("On the Road", 
                        "Kerouac", 1955);  
  
    for(int i=0; i < books.length; i++) books[i].show();  

    }
}

The output works out fine, I don't think it is needed, but here it is anyway.

Java: A Beginner's Guide
Schildt
2007

Java: The Complete Reference
Schildt
2007

The Art of Java
Schildt and Holmes
2003

Red Storm Rising
Clancy
1986

On the Road
Kerouac
1955

[Srikanth Madasu]

Your class is already under the package - hsbookdemo and you already had that in the very first line of your class. so you don't need the second package.

And regarding your question to create new package in IDE just right click on your project name and select new package.

Hope this helps!