Re: Checking for null

[John McDonald]

The algorythm below will check two strings for equality, but I think I need to use String.equals("value") to check if a string = a value, such as null. However, when I do that it throws a null point exception, becuase String is null.   Any ideas?    John D. McDonald CipherStream Systems Phone: 925.373.8700 Fax:     413.793.6603 email: [EMAIL PROTECTED] web: www.cipherstream.com ------------------------------------------------------- Secure E-Business Is Our Business ------------------------------------------------------- ----- Original Message ----- From: Erik Sahl To: John McDonald ; [EMAIL PROTECTED] Sent: Wednesday, January 05, 2000 3:37 PM Subject: RE: Checking for null You mean like...   String myValue = req.getParameter("value");   if (myValue != null) {     ...continue execution }                                                                                                           -----Original Message----- From: A mailing list for discussion about Sun Microsystem's Java Servlet API Technology. [mailto:[EMAIL PROTECTED]]On Behalf Of John McDonald Sent: Wednesday, January 05, 2000 4:03 PM To: [EMAIL PROTECTED] Subject: Checking for null I am retrieving a value from a web page with req.getParameter("value"). How do I check if the string is null without getting a null pointer exception. Any ideas would be helpful.     John D. McDonald CipherStream Systems Phone: 925.373.8700 Fax:     413.793.6603 email: [EMAIL PROTECTED] web: www.cipherstream.com ------------------------------------------------------- Secure E-Business Is Our Business -------------------------------------------------------