关于我的代码的类型错误的非法启动

Question

当我创建一个加载时，我的程序给出了以下错误;

D:\views\UniqueAcctStorageRuleNameValidator.java:34: illegal start of type
List<String> listOfAcctStorageRuleNameAsArray =
    new ArrayList<>(listOfAcctStorageRuleName.size());

这是代码;

public class FKAcctStorageRuleNameValidator extends AbstractAnnotationCheck<FKAcctStorageRuleName>{

   private static final long serialVersionUID = 1L;

   private SpecbookValidatorManager specBookValidator;   

   @Override
   public boolean isSatisfied(Object validatedObject, Object valueToValidate,
           OValContext context, Validator validator) throws OValException {
      if (valueToValidate == null) return true;

      specBookValidator = SpecbookValidatorManagerImpl.getInstance();

      List<SpecbookAcctStorageRule> listOfAcctStorageRuleName = specBookValidator.getAcctStorageRuleList();

      List<String> listOfAcctStorageRuleNameAsArray = new ArrayList<>(listOfAcctStorageRuleName.size());
      for (SpecbookAcctStorageRule specbookAcctStorageRule : listOfAcctStorageRuleName) {
         listOfAcctStorageRuleNameAsArray.add(specbookAcctStorageRule.getName());
      }

      return ListUtil.containsIgnoreCase((String) valueToValidate, listOfAcctStorageRuleNameAsArray);
   }
}

Answer 1

您可能正在使用JDK低于7的版本。它不知道the diamond <>是什么。

更改为以下内容将解决问题：

new ArrayList<String>(listOfAcctStorageRuleName.size());

当然，您可以自由下载较新的Java版本，以使用以前版本中不允许的所有便捷功能。