myfiletest.java

Java 图形界面入门实例

import java.io.*;

public class myFileTest
{  public static void main(String args[]) throws IOException
	{  byte buffer[]=new byte[1024];
	   File f1=new File("F:\\java","2.txt");
	   FileInputStream file=new FileInputStream(f1);
       while((file.read(buffer))!=-1)
		   System.out.print(buffer);
	   file.close();
	}
}