null « String « JSP-Servlet Q&A

  1. JSP-Servlet Q&A
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1. Java-Servlets: String null or "null"    stackoverflow.com

http://stackoverflow.com/questions/1533662/testing-a-string-is-null I had this problem(see the link), where I was sure that a String is null, but in fact the String was "null" jcasso told me:

Since you get the string ...

2. Null vs empty string    coderanch.com

3. curious case of JSP page passing empty string,instead of passing null value    coderanch.com