哪里在错了

import javax.swing.*;
import java.util.StringTokenizer;
public class WordReplacement {
String[]word;
String orignalWords;
String soWord;
String deWord;
String words;

public WordReplacement() {
word=new String[100];
orignalWords=JOptionPane.showInputDialog(null,"请输入要修改的文字");
soWord=JOptionPane.showInputDialog(null,"请输入需要替换的单词");
deWord=JOptionPane.showInputDialog(null,"请输入替换单词");
word=splitWords(orignalWords);
words=replaceWord(word,soWord,deWord);

JOptionPane.showMessageDialog(null,"源文字: "+orignalWords+"\n换成: \n"+words,"替换结果是:",JOptionPane.INFORMATION_MESSAGE);
}
public String[]splitWords(String words){
String[] wordString=words.split(" ");
return wordString;
}
public String replaceWord(String[] word,String source,String dest){
String result="";
for(int i=0;i<word.length;i++){
if(word[i].compareTo(source)==0){
word[i]=dest;
}
}
for(int i=0;i<word.length;i++){
result.concat(word[i]);
}
return result;
}

public static void main(String[] args) {
WordReplacement wr=new WordReplacement();
System.exit(0);

}
}



怎么用words结果为空的,如果words.split(" "); 换成用stringtokenizer分解怎么用,谢谢

[解决办法]

Java code

StringTokenizer st = new StringTokenizer("this is a test");String[] word=new String[st.countTokens];int i=0;     while (st.hasMoreTokens()){         word[i++]=st.nextToken();     }