filereadaddresses.java

Java 入门书的源码

//Copyright (c) 1998, Arthur Gittleman
//This example is provided WITHOUT ANY WARRANTY either expressed or implied.

/* Reads the four fields of an Address, separated by vertical bars,
 * from a single line.  Uses a StringTokenizer to get each string.
 */

import java.io.*;
import personData.*;
import java.util.StringTokenizer;
public class FileReadAddresses {
  public static void main(String [] args) {
    String line;
    String street, city, state, zip;
    StringTokenizer strings;
    Address address; 
    try {
      BufferedReader f = new BufferedReader(new FileReader("addresses.data"));
      while ((line=f.readLine())!= null){
        strings = new StringTokenizer(line,"|");
        if (strings.countTokens() == 4) {
          street = strings.nextToken();
          city = strings.nextToken();
          state = strings.nextToken();
          zip = strings.nextToken();
          address = new Address(street,city,state,zip);
          System.out.println(address); 
          System.out.println();
        }
      }
      f.close();
    }catch(IOException e) {
       e.printStackTrace();
     }
  }
}