fileoutputstreamdemo.java~1~

java2参考大全上的例子的源码和自己的理解.

package fileoutputstream;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

// Demonstrate FileOutputStream.
import java.io.*;

class FileOutputStreamDemo {
  public static void main(String args[]) throws Exception {
    String source = "Now is the time for all good men\n"
        + " to come to the aid of their country\n"
        + " and pay their due taxes.";
    byte buf[] = source.getBytes();
    OutputStream f0 = new FileOutputStream("file1.txt");

    for (int i = 0; i < buf.length; i += 2) {
      f0.write(buf[i]);
    }
    f0.close();

    OutputStream f1 = new FileOutputStream("file2.txt");
    f1.write(buf);
    f1.close();

    OutputStream f2 = new FileOutputStream("file3.txt");
    f2.write(buf, buf.length - buf.length / 4, buf.length / 4);
    f2.close();
  }
}