读取多行文本，其值由空格分隔

 import java.io.*; class Record{   String first;   String last;   String date;  public Record(String first, String last, String date){       this.first = first;       this.last = last;       this.date = date;  }  public static void main(String args[]){   try{    FileInputStream fstream = new FileInputStream("textfile.txt");          DataInputStream in = new DataInputStream(fstream);          BufferedReader br = new BufferedReader(new InputStreamReader(in));          String strLine;          while ((strLine = br.readLine()) != null)   {   String[] tokens = str.split(" ");   Record record = new Record(tokens[0],tokens[1],tokens[2]);//process record , etc   }   in.close();   }catch (Exception e){     System.err.println("Error: " + e.getMessage());   } }}