Why this EL code part is not working

I have added a function named getAllBrands()to the BeerExpert class of HFSJ Book to check the EL [].But its not working why?

scriplets is working without any problem for tha ArrayList.

The codes are below
form.html

BeerExpert.java

SelectBeer.java

result.jsp

Can anyone can find out the problem?

If i put
 ${styles[0]}
 ${styles[1]} int result.jsp

its works without any problem.

Can anyone can find out the problem?

I'm sorry but I fail to understand one thing....why do ya have <String> associated with List and ArrayList in the BeerExpert class?

That is Generic version of Collections.That's in Java 5.
I am using java5 compiler. If am not using Generic Collections my i have to specify $javac -Xlint:unchecked <filename> for compilation.

If ya consider an EL like ${firstThing.secondThing} or
${firstThing["secondThing"]} firstThing has to be an attribute or an EL implicit object....when you're using ${styles[0]} its workin' fine because "styles" is a request attribute....but ${brands[0]} won't work because "brands" is neither an EL implicit object nor an attribute in any of the 4 scopes....
Hope that answers your question

Thank you Sayak, i got the answer.
I change the code so its working now

${be.allBrands[0]}
 ${be.allBrands[1]}
 ${be.allBrands[2]}
 ${be.allBrands[3]}