Errata for Java Examples in a Nutshell

Replace the reload() method with this: /** Reload the current page in the history list */ public void reload() { if (currentHistoryPage != -1) { // We can't reload the current document, so display a blank page textPane.setDocument(new javax.swing.text.html.HTMLDocument()); // Now re-visit the current URL visit((URL)history.get(currentHistoryPage)); } }

comment out the code starting with // Choose a cursor based on the type of the drag the user initiated Cursor cursor End the comment after the switch statement. Then, near the bottom of the page, there are two calls to startDrag(). In each one, replace "cursor" with "null". By passing null instead of a cursor, the system will automatically supply a default cursor, and will automatically upated it as needed if the drop action changes during the drag.

/** * This hashtable stores all open accounts and maps from account name * to Account object **/ now reads: /** * This hashtable stores all open accounts and maps from account name * to Account object. Methods that use this object are synchronized * to prevent concurrent access by more than one thread. **/

/** * This internal method is not a remote method. Given a name and password * it checks to see if an account with that name and password exists. If * so, it returns the Account object. Otherwise, it throws an exception. **/ Account verify(String name, String password) throws BankingException { synchronized(accounts) { Account acct = (Account)accounts.get(name); if (acct == null) throw new BankingException("No such account"); if (!password.equals(acct.password)) throw new BankingException("Invalid password"); return acct; } } now reads: /** * This internal method is not a remote method. Given a name and password * it checks to see if an account with that name and password exists. If * so, it returns the Account object. Otherwise, it throws an exception. * This method is synchronized because it uses the accounts hashtable. **/ synchronized Account verify(String name, String password) throws BankingException { Account acct = (Account)accounts.get(name); if (acct == null) throw new BankingException("No such account"); if (!password.equals(acct.password)) throw new BankingException("Invalid password"); return acct; }

<param name='counter' value='test.shtml'> now reads: <param name='counter' value='test.shtml'></param>