"找不到符号"？

Question

我真的要疯了。我正在尝试反转字符串中的单词。我正在尝试使用StringUtils并完成了导入。为什么我得到和"找不到符号。"方法…"?

下面是我的代码:

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package mkrsassignment10;
import com.sun.xml.internal.ws.util.StringUtils;

/**
 *
 * @author mso_
 */
public class Main {
/**
 * @param args the command line arguments
 */
public static void main(String[] args) {
    //Q1
    //int index;
    String sentence = "is this a sentence or is it not ";
    // 1a
    String[] myStringArray = sentence.split(" "); //Split the sentence by space.
    String wordLongest = myStringArray[0]; //assign longest word to the first word
    for (int i=0; i < sentence.length(); ++i) { //loop through the sentence to find the longest word
      if(wordLongest.length() < myStringArray.length)
        wordLongest = myStringArray[i];
      else
    break;
    }
    System.out.println("The word is: " + "'"+ wordLongest +"'" + " and it is " + wordLongest.length() + " characters long");
    // 1b
    //for (int i = 0; i < myStringArray.length; i++) {
    //    myStringArray.toString();
    //    else
    //    break;
    // 1c
    String reversed = StringUtils.reverseDelimited(sentence, " "); // <--- here is the error
    System.out.println("Reversed words:" + reversed);
    // 1d
    sentence = new StringBuffer(sentence).reverse().toString();
    System.out.println("Reversed String : " + sentence);
  }

}

Answer 1

我想你用的是Apache Commons Lang。第二个参数需要的是char而不是String。试试:StringUtils.reverseDelimited(sentence, ' ');