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();
					}
				}