Cal.jsp
<%--
Document : Cal
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Calculator</title>
</head>
<body>
<form metod="get" action="Cal1.jsp">
Value1:<input type="text" name="v1"/><br/>
Value2:<input type="text" name="v2"/><br/>
Opration:<select name="op">
<option>+</option>
<option>-</option>
<option>*</option>
<option>/</option>
</select><br/>
<input type="submit" name="b" value="ok"/>
</form>
</body>
</html>
Cal1.jsp
<%--
Document : Cal1
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<%! int ans; %>
<% int s=Integer.parseInt(request.getParameter("v1"));
int r=Integer.parseInt(request.getParameter("v2"));
String op1=request.getParameter("op");
if(op1.equals("+")){
ans=s+r;
}
if(op1.equals("-")){
ans=s-r;
}
if(op1.equals("*")){
ans=s*r;
}
if(op1.equals("/")){
ans=s/r;
}%>
<h1> answer is : <%=ans%> </h1>
</body>
</html>
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