Getting elements of arraylist based on index in jstl [duplicate]

Answer 1

When you say colors.get(1); or ${element[1]} its actually referrign to single entry in the list. But when you use c:forEach its iterating the loop. It depends on what you are trying to achieve. If you just want the Nth element try

<c:out value="${colors[1]}"/> // This prints the second element of the list

but rather you want to print the entire elements you should go for loop like

<c:forEach items="${colors}" var="element">    
    <c:out value="${element}"/>
</c:forEach>

Also please note if you write like <c:forEach items="colors" var="element"> it literally treat the value as "colors". So if its a variable name you need to give it in ${} like ${colors} as depicted in example above.

Answer 2

You can used array-based access as follows:

<c:out value="${colors[0]}" />

Answer 3

This should work:

 <c:out value="${colors[0]}"/>

It will print you "red".

But if you want to print all the values of your list, you can use your foreach like that:

<c:forEach items="colors" var="element">    
 <c:out value="${element}"/>
</c:forEach>

This code will iterate over your list colors and set each element of this list in a variable called element. So, element has the same type as the one who parameterized your list (here, String). So you can not call get(1) on String since it does not exist. So you call directly <c:out value="${element}"/> which will call toString() method of your current element.