<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" pageEncoding="UTF-8" %>
<html>
<head>
<title>JSTL - Choose/When/Otherwise</title>
</head>
<body>
<c:set var="number" value="100"/>
<h4>Choose 태그로 홀짝 판단</h4>
<c:choose>
<c:when test="${number % 2 == 0}">
${number}는 짝수입니다.
</c:when>
<c:otherwise>
${number}는 홀수입니다.
</c:otherwise>
</c:choose>
<h4>국 영 수 점수를 입력하면 평균을 내어 학점 출력하기</h4>
<form>
국어 : <input type="text" name="kor" value=""/><br/>
영어 : <input type="text" name="eng"/><br/>
수학 : <input type="text" name="math"/><br/>
<input type="submit" value="학점 구하기">
</form>
<c:if test="${!(empty param.kor or empty param.eng or empty param.math)}">
<c:set var="avg" value="${(param.kor + param.eng + param.math) / 3}"/>
평균 점수는 ${avg} 이므로
<c:choose>
<c:when test="${avg >= 90}">A학점</c:when>
<c:when test="${avg >= 80}">B학점</c:when>
<c:when test="${avg >= 70}">C학점</c:when>
<c:when test="${avg >= 60}">D학점</c:when>
<c:otherwise>F학점</c:otherwise>
</c:choose>
</c:if>
</body>
</html>
