字节流 文件输入流

public class InputStreanTest {public static void main(String[] args) {InputStream fis=null;try{//2.创建文件输入对象fis=new FileInputStream("D:\\doc\\test.txt");//3.执行读操作byte[]words =new byte[1024];int len=0;//实际读取长度System.out.println("文件内容: ");while((len=fis.read(words))>0){System.out.println(new String(words,0,len));}} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}finally {//4.关闭输出流try{if (fis!=null){fis.close();}} catch (IOException e) {e.printStackTrace();}}}
}