62,635
社区成员




File f = new File("xxxx.file");
if (f.exists()) {
FileInputStream fis = null;
try {
fis = new FileInputStream(f);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
try {
System.out.println("File has " + (double)((double)fis.available()/1000)
+ "KB");
} catch (IOException e) {
e.printStackTrace();
}