<c:forEach var="i" begin="0" end="22" step="2">

<c:choose>

<c:when test="${i lt 10}">

0${i}:00<input type="text" placeholder="${i}:00"><br>

</c:when>

<c:otherwise>

${i}:00<input type="text" placeholder="${i}:00"><br>

</c:otherwise>

</c:choose>

</c:forEach>

이거 그냥

${i<10 : '0'+i : i }:00<input type="text" placeholder="${i}:00"><br> 이렇게 한줄로는 안되는건가요

i앞에 문자가 안붙네용 ㅜ