I am new to JSP. I've followed the instructions step by step in "Beginning JSP 2.0." But when I type $(2+2) in my JSP file it outputs $(2+2) instead of 4. I've made sure that I've followed the instructions step-by-step, even uninstalling and installing Tomcat and J2SE about 5 times to make sure I've installed it correctly. I've made sure the environment variables are correct, but don't know what the problem is. Could someone help me out? Thanks

hehe, i've fixed it. i was using parenthesis instead of brackets

the correct is ${2+2}
you can try it