filetest1.java

这是一张java应用教程的随书光盘

import java.io.*;
class FileTest1
{
 public static void main(String args[]){
  System.out.println("path separater      "+File.pathSeparator);
  System.out.println("path separater char "+File.pathSeparatorChar);
  System.out.println("separater           "+File.separator);
  System.out.println("separater char      "+File.separatorChar);
  File p=new File("c:/qq/");
  File f=new File(p,"ReadMe.txt");
  System.out.println();
  System.out.println(f);
  System.out.println("exist?             "+f.exists());
  System.out.println("name               "+f.getName());
  System.out.println("len                "+f.length());
  System.out.println("path               "+f.getPath());
  System.out.println("Parent             "+f.getParent());
  System.out.println("is a file          "+f.isFile());
  System.out.println("is a directory     "+f.isDirectory());
  System.out.println("can read           "+f.canRead());
  System.out.println("can write          "+f.canWrite());
  System.out.println("is modified        "+f.lastModified());
  File newFile=new File("Hello.txt");
  f.renameTo(newFile);
  System.out.println("original exist?    "+f.exists());
  System.out.println("new exist?         "+newFile.exists());
  System.out.println("newFile name       "+newFile.getName());
  System.out.println("Absolute path      "+newFile.getAbsolutePath());
 }
}