import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException;  public class File_Test {   /**   * @param args   */  public static void main(String[] args) {   File file = new File("D://logserrorMsg.log");   if(file.exists()){    System.out.println("此文件存在");   } else {    System.out.println("此文件不存在");   }      try {    FileReader fr = new FileReader(file);    BufferedReader br = new BufferedReader(fr);    String s;    while((s=br.readLine())!=null){     System.out.println(s);    }    System.out.println("文件大小為（MB）："+new FileInputStream(file).available() / 1024 / 1024 +"M");   } catch (FileNotFoundException e) {    e.printStackTrace();   } catch (IOException e) {    e.printStackTrace();   }  }  } 

import java.io.FileInputStream;  import org.textmining.text.extraction.WordExtractor;  public class WordTest {  public static void main(String args[]) throws Exception {   new WordTest().readByOther();  }   public void readByText() throws Exception {   FileInputStream in = new FileInputStream("C://test.doc ");   WordExtractor extractor = new WordExtractor();   String str = extractor.extractText(in);   System.out.println(str);  } }