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For Simple Calculation and Output
One of the general purpose core library tag is . The main function of the this tag is to display the output to the user. It works like expression tag in jsp <%= ---%>.

<c: out> For Simple Calculation and Output

One of the general purpose core library tag is <c: out>. The main function of the this tag is to display the output to the user. It works like expression tag in jsp <%= ---%>.

Attributes of the <c: out> core action tag.

value: It specify the expression which needs to be evaluated.
default: We can use this attribute if the resulting value is null.
escapeXml: It checks whether there is any need to convert the &, <, > etc to their character encoding codes.

In this example we have used only one attribute of <c: out>. The attribute value which is a must attribute and by using this attribute we are calculating the sum of numbers and displaying the output on the browser.

The code of the program is given below:

<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
<html>
<head>
<title>Adding numbers by using c: out</title>
</head>

<body>
<h1>Adding numbers by using c: out</h1>

10 + 20 + 30 =
<c:out value="${10 + 20 + 30}" /><br>
</body>
</html>

The output of the program is given below:

Download this example.

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Related Tags: c jsp ide variables script object io methods scope method variable print ip page tag ole instance int ria this

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