private FileNotFoundException(String path, String reason) {
super(path + ((reason == null)
? " "
: " ( " + reason + ") "));
}
请问这个私有构造体有什么作用呢
------解决方案--------------------
This private constructor is invoked only by native I/O methods.
------解决方案--------------------
FileNotFoundException提供了public FileNotFoundException()和public FileNotFoundException(String s)两个public方法供我们用，而private FileNotFoundException(String path, String reason)这个方法指示供FileNotFoundException内部使用的。