Can anyone please explain this error to me?
<%
String[][] mesa = new String[30][30];
out.println("");
for(int i=30; i>=0; i--)
{
for(int n=0; n<((302)+1); n++)
{
out.print("-");
}
out.println("<br>");
for(int j=0; j<30; j++)
{
mesa[i][j]=" ";
out.print("|" + mesa[i][j]);
}
out.print("|<br>");
}
for(int n=0; n<((302)+1); n++)
{
out.print("-");
}
out.println("<br>");
%>