View difference between Paste ID: hRSVFLzS and ZnpW8QCk

 class Book
 {
     // The fields.
     private String author;
     private String title;
     private int pages;
     private String refNumber;
 
     /**
      * Set the author and title fields when this object
      * is constructed.
      */
     public Book(String bookAuthor, String bookTitle, int amountPages, String setRef)
     {
 
-        if(setRef == null)
+
-        {
+
             title = bookTitle;
             pages = amountPages;
 
     }
-        }
+
-        if(setRef!= null)
+public Book(String bookAuthor, String bookTitle, int amountPages)
-        {
+
             refNumber = "";
             author = bookAuthor;
             title = bookTitle;
             pages = amountPages;
-        }
+
     }
 
     public String returnAuthor()
     {
         return author;
     }
 
     public int getPages()
     {
         return pages;
     }
 
     public String returnTitle()
     {
         return title;
     }
 
     public void printAuthor()
     {
         System.out.println(author);
     }
 
     public void printTitle()
     {
         System.out.println(title);
     }
 
     public void printDetails()
     {
         System.out.println("Titel : " + title);
         System.out.println("Auteur : " + author);
         System.out.println("Aantal pagina's : " + pages);