Expression of EL actual arithmetic operators

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A Code

<%@ page contentType="text/html; charset=GBK" language="java" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title> 表达式语言 - 算术运算符 </title>
    <meta name="website" content="http://www.crazyit.org" />
</head>
<body>
    <h2>表达式语言 - 算术运算符</h2><hr/>
    <table border="1" bgcolor="#aaaadd">
        <tr>
            <td><b>表达式语言</b></td>
            <td><b>计算结果</b></td>
        </tr>
        <!-- 直接输出常量 -->
        <tr>
            <td>\${1}</td>
            <td>${1}</td>
        </tr>
        <!-- 计算加法 -->
        <tr>
            <td>\${1.2 + 2.3}</td>
            <td>${1.2 + 2.3}</td>
        </tr>
        <!-- 计算加法 -->
        <tr>
            <td>\${1.2E4 + 1.4}</td>
            <td>${1.2E4 + 1.4}</td>
        </tr>
        <!-- 计算减法 -->
        <tr>
            <td>\${-4 - 2}</td>
            <td>${-4 - 2}</td>
        </tr>
        <!-- 计算乘法 -->
        <tr>
            <td>\${21 * 2}</td>
            <td>${21 * 2}</td>
        </tr>
        <!-- 计算除法 -->
        <tr>
            <td>\${3/4}</td>
            <td>${3/4}</td>
        </tr>
        <!-- 计算除法 -->
        <tr>
            <td>\${3 div 4}</td>
            <td>${3 div 4}</td>
        </tr>
        <!-- 计算除法 -->
        <tr>
            <td>\${3/0}</td>
            <td>${3/0}</td>
        </tr>
        <!-- 计算求余 -->
        <tr>
            <td>\${10%4}</td>
            <td>${10%4}</td>
        </tr>
        <!-- 计算求余 -->
        <tr>
            <td>\${10 mod 4}</td>
            <td>${10 mod 4}</td>
        </tr>
        <!-- 计算三目运算符 -->
        <tr>
            <td>\${(1==2) ? 3 : 4}</td>
            <td>${(1==2) ? 3 : 4}</td>
        </tr>
    </table>
</body>
</html>

Both tests

Expression of EL actual arithmetic operators

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