randomaccessexample.java

java 完全探索的随书源码

import java.io.*;

class RandomAccessExample
{
  public static void main( String[] args )
  {
    if ( args.length != 1 )
    {
      System.out.println( "Usage: java RandomAccessExample <textfile>" );
      System.exit( 0 );
    }

    String fileName = args[0];
    try
    {
      // Create a random access file for read only
      RandomAccessFile file = new RandomAccessFile( fileName, "r");
      long filePointer = 0;
      long length = file.length();

      // Keep going through the file until we reach the length of the file
      while ( filePointer < length )
      {
        String s = file.readLine();
        System.out.println(s);
        filePointer = file.getFilePointer();
      }
    }
    catch ( IOException ex )
    {
      ex.printStackTrace();
    }
  }
}