场景:查看文件的大小的方法(参考)
代码:
public class FileSizeTest { public static void main(String[] args) { String fileName = "E:\TEXT.dat"; File file = new File(fileName); long size = file.length(); System.out.println("第一种方式获取文件的大小(字节):" + size); InputStream is = null; try { is = new FileInputStream(fileName); int fileSzie = is.available(); System.out.println("第二种方式获取文件的大小(字节):" + fileSzie); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally{ try { if(is != null){ is.close(); } } catch (IOException e) { e.printStackTrace(); } } } }