For trivia it's worth noting that the String equals and equalsIgnoreCase
methods also return false on null inputs, so you can also write:
if("Admin".equalsIgnoreCase( user.getUserType() )) {
...
}
On 04/08/2011 08:51 AM, robnangle wrote:
Richard Hill-7 wrote:
Well you can't call a method on null! null is not a String with value
"null". It's a special value in java - basically a reference to a value
called null (i.e distinct from an undefined variable that has no
reference assigned). You need to check for a null value before calling
any methods:
if(user.getUserType() != null&&
user.getUserType().equalsIgnoreCase("Admin")) {
....
On Fri, 2011-04-08 at 05:38 -0700, robnangle wrote:
Richard Hill-7 wrote:
You don't say what line your getting your npe but I'm guessing it's
this:
if(user.getUserType().equalsIgnoreCase("Admin")
if .getUserType() is null as you imply it can be then
calling .equalsIgnorecase() is going to result in an npe.
Ye thats the line im getting it on. Yes everybodys userType will be null
after the first user who was set to Admin. How do I get around this or is
it
possible?
I thought you could just:
public boolean adminUser() {
if(user.getUserType().equalsIgnoreCase("Admin")) {
adminUser = true;
setAdminUser(true);
}
else if(user.getUserType().equalsIgnoreCase(null)) {
adminUser = false;
}
return adminUser;
}
However it never goes by the first if when the user is not an admin
user..
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