What does the dollar curly brackets ${} mean in JSP?

Question

What does ${} means in JSP? For example,

Answer 1

its an El expression basically it outputs the value that result from evaluating the expression, to put it simply, it allows you to access the values of the properties of your java beans using "dots" instead of using getters and setters, using it you can access instances of beans that can be in session,request, or page scope