<<21天精通JAVA>>一书的源码,边学边做,很快上手,适合JAVA初学者.

				import java.io.*;
				
				public class ReadBytes {
				    public static void main(String[] arguments) {
				        try {
				            FileInputStream file = new
				                FileInputStream("class.dat");
				            boolean eof = false;
				            int count = 0;
				            while (!eof) {
				                int input = file.read();
				                System.out.print(input + " ");
				                if (input == -1)
				                    eof = true;
				                else
				                    count++;
				            }
				            file.close();
				            System.out.println("\nBytes read: " + count);
				        } catch (IOException e) {
				            System.out.println("Error -- " + e.toString());
				        }
				    }
				}