java-输入输出流

import java.io.*;
public class test {

    /**
     * @param args
     */
    public static void main(String[] args) throws Exception{
        // TODO Auto-generated method stub

        InputStream f = new FileInputStream("11");
        OutputStream f0 = new FileOutputStream("22");
        System.out.println("Total Available Bytes:"+f.available());
        byte b[] =new byte[100];
        int code;
        while(true){
            code = f.read(b);
            if(code<=0)break;
            f0.write(b);
        }
        f.close();
        f0.close();
        
    }

}