//Tic tac toe example using jsp
<%@ page language="java" %>
<%
if (session.isNew()) {
int[] squareValues = {-1, -1, -1, -1, -1, -1, -1, -1, -1};
session.setAttribute("squareValues", squareValues);
}
int[] squareValues = null;
for (int i = 0; i < 9; i++) {
squareValues = (int[]) session.getAttribute("squareValues");
String s = request.getParameter("square" + i);
if ((s != null) && s.toLowerCase().equals("x")) {
squareValues[i] = 1;
}
if ((s != null) && s.toLowerCase().equals("o")) {
squareValues[i] = 0;
}
session.setAttribute("squareValues", squareValues);
}
%>
<%!
private int getChoice(int squareNo, int[] squareValues) {
return squareValues[squareNo];
}
%>
<html>
<head>
<title>Tic Tac Toe</title>
</head>
<body bgcolor="#FFFFFF">
<h1>A basic version of Tic-tac-toe (Noughts and Crosses)</h1>
<form action="tictactoe.jsp">
<table>
<% /* Establish a loop for 9 squares in 3 rows of 3 */
for (int counter=0; counter < 9; counter++) {
/* A row every three squares */
if (counter % 3 == 0) { %>
<tr><td width="15">
<% } else { %>
<td width="15">
<% }
/* Each cell should have an O, an X or an input field */
switch (getChoice(counter, squareValues)) {
case 0: %>
O
<% break;
case 1: %>
X
<% break;
default: %>
<input type="text" size="1" length="1" name="square<%= counter %>" />
<% break;
}
/* Finish row every three squares */
if ((counter + 1) % 3 == 0) { %>
</td></tr>
<% } else { %>
</td>
<% }
} %>
</table>
<input type="submit" value="Confirm Choice" />
</form>
</body>
</html>
//output
<%@ page language="java" %>
<%
if (session.isNew()) {
int[] squareValues = {-1, -1, -1, -1, -1, -1, -1, -1, -1};
session.setAttribute("squareValues", squareValues);
}
int[] squareValues = null;
for (int i = 0; i < 9; i++) {
squareValues = (int[]) session.getAttribute("squareValues");
String s = request.getParameter("square" + i);
if ((s != null) && s.toLowerCase().equals("x")) {
squareValues[i] = 1;
}
if ((s != null) && s.toLowerCase().equals("o")) {
squareValues[i] = 0;
}
session.setAttribute("squareValues", squareValues);
}
%>
<%!
private int getChoice(int squareNo, int[] squareValues) {
return squareValues[squareNo];
}
%>
<html>
<head>
<title>Tic Tac Toe</title>
</head>
<body bgcolor="#FFFFFF">
<h1>A basic version of Tic-tac-toe (Noughts and Crosses)</h1>
<form action="tictactoe.jsp">
<table>
<% /* Establish a loop for 9 squares in 3 rows of 3 */
for (int counter=0; counter < 9; counter++) {
/* A row every three squares */
if (counter % 3 == 0) { %>
<tr><td width="15">
<% } else { %>
<td width="15">
<% }
/* Each cell should have an O, an X or an input field */
switch (getChoice(counter, squareValues)) {
case 0: %>
O
<% break;
case 1: %>
X
<% break;
default: %>
<input type="text" size="1" length="1" name="square<%= counter %>" />
<% break;
}
/* Finish row every three squares */
if ((counter + 1) % 3 == 0) { %>
</td></tr>
<% } else { %>
</td>
<% }
} %>
</table>
<input type="submit" value="Confirm Choice" />
</form>
</body>
</html>
//output
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