作者:gnuhpc
出处:http://www.cnblogs.com/gnuhpc/
文件路径:
import java.io.File;
public class FilePath {
public static void main(String arg[]) {
String pname1 =
File.separator + "stuff" +
File.separator + "vtc" +
File.separator + "java6" +
File.separator + "1204";
System.out.println(pname1);
String pname2 =
File.separator + "stuff" +
File.separator + "bin";
System.out.println(pname2);
String path = pname1 + File.pathSeparator + pname2;
System.out.println(path);
}
}
从文件名得到文件路径信息:
import java.io.File;
import java.io.IOException;
public class FileNames {
public static void main(String arg[]) {
File file;
try {
file = new File("FileNames.java");
System.out.println("Name: " + file.getName());
System.out.println("Parent: " + file.getParent());
System.out.println("Path: " + file.getPath());
System.out.println("Absolute path: " + file.getAbsolutePath());
System.out.println("Canonical path: " + file.getCanonicalPath());
System.out.println();
file = new File(
File.separator + "home" +
File.separator + "doc" +
File.separator + "vtc" +
File.separator + "java6" +
File.separator + "1204");
System.out.println("Name: " + file.getName());
System.out.println("Parent: " + file.getParent());
System.out.println("Path: " + file.getPath());
System.out.println("Absolute path: " + file.getAbsolutePath());
System.out.println("Canonical path: " + file.getCanonicalPath());
System.out.println();
file = new File(".");
System.out.println("Name: " + file.getName());
System.out.println("Parent: " + file.getParent());
System.out.println("Path: " + file.getPath());
System.out.println("Absolute path: " + file.getAbsolutePath());
System.out.println("Canonical path: " + file.getCanonicalPath());
System.out.println();
} catch(IOException e) {
System.out.println(e);
}
}
}
文件信息:
import java.io.File;
import java.io.IOException;
public class FileInfo {
public static void main(String arg[]) {
File file;
if(arg.length != 1) {
System.out.println("Usage: java FileInfo <filename>");
return;
}
try {
file = new File(arg[0]);
System.out.println("Canonical path: " + file.getCanonicalPath());
System.out.println("Is a normal file: " + file.isFile());
System.out.println("Is a directory: " + file.isDirectory());
System.out.println("Is a hidden file: " + file.isHidden());
System.out.println("Can execute: " + file.canExecute());
System.out.println("Can read: " + file.canRead());
System.out.println("Can Write: " + file.canWrite());
System.out.println("Path name is absolute: " + file.isAbsolute());
System.out.println("Length of file: " + file.length());
if(file.isDirectory()) {
String name[] = file.list();
for(int i=0; i<name.length; i++)
System.out.println(" " + name[i]);
}
} catch(IOException e) {
System.out.println(e);
}
}
}
作者:gnuhpc
出处:http://www.cnblogs.com/gnuhpc/
作者:gnuhpc
出处:http://www.cnblogs.com/gnuhpc/
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