Traversal in freemarker

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List<Question> question = new ArrayList<Question>();
Map<Question, List<Option>> mapping = new LinkedHashMap<Question, List<Option>>();

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<#if question??>
  <#list question as ask>
    <#list options[ask.id?c] as option>
      <#if option.status = 0>right<#else>false</#if>
    </#list>
  </#list>
</#if>
  • Is freemarker’s key only be String -_- shit.
  • Why can’t use object as a key
  • Use ?c transform int varable to string