รหัสต้นฉบับ (Source Code) เพื่อการศึกษา j0601.java

Source Code เพื่อ การศึกษา

j0601.java

// ::::: โปรแกรมลำดับที่ 21

// 1. การแสดงรายละเอียดของแฟ้ม c:/windows/win.ini

// 2. http://www.yonok.ac.th/pmy/j2sdk-1_4_2-doc.zip

// 3. http://www.exampledepot.com/egs/java.io/

import java.io.*;

class j0601 {

public static void main (String args[]) throws IOException {

File f = new File("c:/windows/win.ini");

System.out.println("getName: "+f.getName());

System.out.println("getPath: "+f.getPath());

System.out.println("getAbsolutePath: "+f.getAbsolutePath());

System.out.println("exists: "+f.exists());

System.out.println("isFile: "+f.isFile());

System.out.println("isDirectory: "+f.isDirectory());

System.out.println("canWrite: "+f.canWrite());

System.out.println("canRead: "+f.canRead());

System.out.println("length: "+f.length());

// create hello1.txt have 0 byte

File file = new File("hello1.txt");

boolean success = file.createNewFile(); // 0 byte

// move hello1.txt to hello2.txt

File file2 = new File("hello2.txt");

success = file.renameTo(file2);

// move hello2.txt to c:/hello2.txt

File b = new File("c:/");

success = file2.renameTo(new File(b, file2.getName()));

// not found file to delete so is false

success = (new File("hello2.txt")).delete();

System.out.println(success); // false

// found file to delete so is true

success = (new File("c:/hello2.txt")).delete();

System.out.println(success); // true

}

ปรับปรุงโปรแกรม source.pl : 2553-03-20