Checking SQL null values

  I getting values from database , I m concating these value and passing back in bean,
       If in database value is null I want to Pass "Not specified"  ..
   How can I compare SQL  null..?
I did this ..
String tCityId ="Not specified";
            tCityId             =rs.getString(1);
How to do this?

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String dbValue = rs.getString(8);
tCityId = (dbValue == null)?"Not specified":dbValue;

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String dbValue = rs.getString(8);
String tCityId = "";
if(dbValue == null)
tCityId = "Not Specified";
tCityId = dbValue;

same result as mine but more code
String tCityId = rs.getString(8);
if (rs.wasNull()) tCityId = "Not Specified";
ManishLeadAuthor Commented:
  As null value is string stored in database..
I did this..
Any way thanks...
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