EL arithmetic question

[igor ganapolsky]

Given this servlet code snippet:
String num = “2”;
request.setAttribute(“num”, num);
Integer i = new Integer(3);
request.setAttribute(“integer”, i);

What prints for the following EL?
${requestScope[“integer”] ne 4 and 6 le num || false}

I thought it prints true because: true and false or false = true

But in the book O'Reilly Head First Servlets and JSP (2nd Edition) they state that it prints false! I just want to make sure I'm not the one who is mistaken here.

Thanks,
Igor

[Sebastian Janisch]

it prints false since 6 <= 2 is false

[Stefan Evans]

I thought it prints true because: true and false or false = true

It does?

true and false or false
--> (true and false) or false
--> false or false
--> false.

[igor ganapolsky]

Thanks, I got mixed up.

[igor ganapolsky]

Sebastian Janisch wrote:it prints false since 6 <= 2 is false

The EL expression evaluates to false, but not only for the reason you stated.