FileIO1

 

package com.jzm.io;

import java.io.File;

public class FileDemo {
  static void p(String s){
   System.out.println(s);
  }
 public static void main(String[] args) {  
 File f1 = new File("d:/java/copyright/test.txt");   //指定文件位置
 p("File name= "+f1.getName());               
 p("Path: "+f1.getPath());
 p("abs path: "+f1.getAbsolutePath());
 p("Parent: "+ f1.getParent());
 p(f1.exists()?  "exists" : "does not exist");
 p(f1.canWrite()?  "is writeabale" : "is not writeable"); 
 p("File size: "+f1.length());
 p(f1.isDirectory()?"is   directory" : "not directory");
 p(f1.isFile()? "is a file":"is not a file");
 }

}

 

输出结果为：

File name= test.txt
Path: c:\java\copyright\test.txt
abs path: c:\java\copyright\test.txt
Parent: c:\java\copyright
does not exist
is not writeable
File size: 0
not directory
is not a file