清华大学：JAVA教学课件：10-10

程序10-10
import java.io.*;
class UseFile{
public static void main(String args[]){
File f = new File("/export/home/d.Java");
System.out.println("The file is exists？-->"+f.exists());
System.out.println("The file can write？-->"+f.canWrite());
System.out.println("The file can read？ -->"+f.canRead());
System.out.println("The file is a file？-->"+f.isFile());
System.out.println("The file is a directory？-->"+f.isDirectory());
System.out.println("The file is absolute path？-->"+f.isAbsolute());
System.out.println("The file's name is -->"+f.getName());
System.out.println("The file's path is -->"+f.getPath());
System.out.println("The file's absolute path is -->"+f.getAbsolutePath());
System.out.println("The file's parent path is -->"+f.getParent());
System.out.println("The file's last modifered time is -->"+f.lastModified());
System.out.println("The file's length is -->"+f.length());

File newfile = new File("newFile");
f.renameTo(newfile);
System.out.println("\tRename the file to,"+newfile.getName());
System.out.println(f+"is exists？-->"+f.exists());
newfile.delete();
System.out.println("Delete "+newfile+".....");
System.out.println(newfile+"is exists？-->"+f.exists());
}
}