In p393 of HFS, there is such an exercise
evaluates:
${num == integer-1}
where in another
servlet dispatching to this
jsp:
...
integer i= new Integer(3);
request.setAttribute("integer",i);
String num="2";
request.setAttribute("num",num);
...
My question is what are the exact rules for evaluating object type expression in EL? Are they all toString'ed? In above e.x., 'integer' should be evaluated to Integer type while 'num' is evaluated to String type. I guess the 2 must be converted to some common type before being compared. But what are the exact rules for this? HFS does not explain this in detail. Where could I find more information?
Thx