Chapter 21 - Code Snippets 
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p.716:

<%
  int salAmount = 3000;
  if (salAmount > 0) {
%>
<h2>The salary is positive.</h2>
<%
  }
  else {
%>
<table border=1>
  <tr align=center>
    <td><b>Warning!</b></td>
  </tr>
  <tr align=center>
    <td>Salary is negative or zero.<br>
        Contact your Financial Advisor.
    </td>
  </tr>
</table>
<%
}
%>

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p.718:

<!-- Salary display -->
<%-- scriptlets --%>
<%
  int salAmount = 3000;
  if (salAmount > 0) {
%>
<h2>The salary is positive.</h2>
<br>
<%
  out.write("The new salary is " + calcRaise(salAmount));
%>
<%
  }
  else {
%>
<h1>The salary is
<%-- expression --%>
<%= salAmount %>
</h1>
  <%
  }
  %>

<br>
<%// expression %>
<%= "Salary is " + salAmount %>

<%-- declaration --%>
<%!
  public static double calcRaise(int salary) {
    return(salary * 1.3);
  }
%>

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p.742, Modify the JSP Page, step 5:

<table border="1">
<%
  for (int i = 1; i < 10; i++) {
    %><tr><%
    for (int j = 1; j < 10; j++) {
      %><td><%= i * j %></td><%
    }
    %></tr><%
  }
%>
</table>

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p.748, step 1:

<%
  String[] params = request.getParameterValues("inputNum");
  int lastNum;
  if (params != null) {
    lastNum = Integer.parseInt(params[0]);
  }
  else {
    lastNum = 9;
  }
%>

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<table border="1">
<%
  for (int i = 1; i <= lastNum; i++) {
    %><tr><%
    for (int j = 1; j <= lastNum; j++) {
      %><td><%= i * j %></td><%
    }
    %></tr><%
  }
%>
</table>

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p.750:

<table border="1">
<%
  // Header loop
  for (int i = 1; i < 10; i++) {
    %><th bgcolor="yellow" >
    <%= i %>
    </th><%
  }
  %></th><%

  // Body nested loops from row 2 to 9
  for (int i = 2; i < 10; i++) {
    // first column
    %><tr><td bgcolor="yellow"><b><%= i %></b></td><%
    for (int j = 2; j < 10; j++) {
      // columns 2 to 9
      %><td>
      <%= i * j %>
      </td><%
    }
    %></tr><%
  }
%>
</table>

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