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Hutool是一个小而全的Java工具类库,通过静态方法封装,降低相关API的学习成本,提高工作效率,使Java拥有函数式语言般的优雅,让Java语言也可以“甜甜的”。

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package cn.hutool.cron.pattern.matcher;

import java.util.Collection;
import java.util.LinkedHashSet;

/**
 * 年匹配
* 考虑年数字太大,不适合boolean数组,单独使用{@link LinkedHashSet}匹配 * * @author Looly */ public class YearValueMatcher implements PartMatcher { private final LinkedHashSet valueList; public YearValueMatcher(Collection intValueList) { this.valueList = new LinkedHashSet<>(intValueList); } @Override public boolean match(Integer t) { return valueList.contains(t); } @Override public int nextAfter(int value) { for (Integer year : valueList) { if (year >= value) { return year; } } // 年无效,此表达式整体无效 return -1; } }




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