jsp 2D array in table-CodePudding

I have a 2D array in java, trying to print it in table form in jsp. Below code is working -

                                <table>
                                    <c:forEach items="${combinations}" var="face">
                                        <tr>
                                            <td>${face[0]}</td>
                                            <td>${face[1]}</td>
                                            <td>${face[2]}</td>
                                        </tr>
                                    </c:forEach>
                                </table>

But instead of hard coding index, I need to make it dynamic based on size of array. Please help with this.

CodePudding user response：

You can use for lops the same way as in plain java like this:

<table>
<%
int[][] arr = { {0,1,2}, {3,4,5}, {6,7,8}};
for (int rowIndex = 0; rowIndex < arr.length; rowIndex  ) {
    %><tr><%
    for (int numIndex = 0; numIndex < arr[rowIndex].length; numIndex  ) {
        %><td><%= arr[rowIndex][numIndex] %></td><% 
    }
    %></tr><%
}
%>
</table>

You just have to make sure that every element of your code is inside a <% ... %> statement.

The outhput of this code looks like this:

In JSF it could look like this:

<c:forEach items="${combinations}" var="rows">
    <tr>
        <c:forEach items="${rows}" var="face">
            <td>${face}</td>
        </c:forEach>
    </tr>
</c:forEach>