如何在java中向corelabel强制转换字符串？

我正在使用斯坦福解析器。我得到一个错误：

无法将字符串解析为Corelabel

下面是一些代码：

List<CoreMap> sentences = annotation.get(CoreAnnotations.SentencesAnnotation.class);
for(CoreMap sentence: sentences) 
{
    CoreLabel temp=sentence.toString().replace(clust2, clust);
    sentences.set(m.sentNum-1,temp);              
}     

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您不能强制转换，但可能可以转换，但这取决于CoreLabel是什么。在某些情况下，可能是CoreLabel CoreLabel=新CoreLabel字符串

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您可能无法转换。但是此代码将适用于u

以下函数存在于您可以使用的CoreLabel.java类下

/** This is provided as a simple way to make a CoreLabel for a word from a String.
   *  It's often useful in fixup or test code. It sets all three of the Text, OriginalText,
   *  and Value annotations to the given value.
   *
   *  @param word The word string to make a CoreLabel for
   *  @return A CoreLabel for this word string
   */
  public static CoreLabel wordFromString(String word) {
    CoreLabel cl = new CoreLabel();
    cl.setWord(word);
    cl.setOriginalText(word);
    cl.setValue(word);
    return cl;
  }

/** This is provided as a simple way to make a CoreLabel for a word from a String.
   *  It's often useful in fixup or test code. It sets all three of the Text, OriginalText,
   *  and Value annotations to the given value.
   *
   *  @param word The word string to make a CoreLabel for
   *  @return A CoreLabel for this word string
   */
  public static CoreLabel wordFromString(String word) {
    CoreLabel cl = new CoreLabel();
    cl.setWord(word);
    cl.setOriginalText(word);
    cl.setValue(word);
    return cl;
  }