public class DeviceInfoUtil {
 
	Context mContext;
 
 public DeviceInfoUtil(Context mContext) {
	this.mContext = mContext;
 }
 
public long getTotalInternalMemorySize() {
    File path = Environment.getDataDirectory();
    StatFs stat = new StatFs(path.getPath());
    long blockSize = stat.getBlockSize();
    long totalBlocks = stat.getBlockCount();
    return totalBlocks * blockSize;
}
 
public long getAvailableInternalMemorySize() {
    File path = Environment.getDataDirectory();
    StatFs stat = new StatFs(path.getPath());
    long blockSize = stat.getBlockSize();
    long availableBlocks = stat.getAvailableBlocks();
    return availableBlocks * blockSize;
}
 
public long getTotalExternelMemorySize() {
    File path = Environment.getExternalStorageDirectory();
    StatFs stat = new StatFs(path.getPath());
    long blockSize = stat.getBlockSize();
    long totalBlocks = stat.getBlockCount();
    return totalBlocks * blockSize;
}
 
public long getAvailableExternelMemorySize() {
    File path = Environment.getExternalStorageDirectory();
    StatFs stat = new StatFs(path.getPath());
    long blockSize = stat.getBlockSize();
    long availableBlocks = stat.getAvailableBlocks();
    return availableBlocks * blockSize;
}
}

uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"

public static boolean deleteFile(File file) {
	if (file != null) {
	    if (file.isDirectory()) {
		String[] children = file.list();
		for (int i = 0; i < children.length; i++) {
		    boolean success = deleteFile(new File(file, children[i]));
		    if (!success) {
			return false;
		    }
		}
	    }
	    return file.delete();
	}
	return false;
    }

<?php
//auther : http://maheshchari.com
//connect to mysql server with host,username,password
//if connection fails stop further execution and show mysql error
$connection=mysql_connect('localhost','root','') or die(mysql_error());
//select a database for given connection
//if database selection  fails stop further execution and show mysql error
mysql_select_db('test',$connection) or die(mysql_error());
 
 
//we are displaying 5 results per page
$per_page = 5;
//number of adjacent links we show left and right of the current page.
$adjacents = 5; 
 
//execute a mysql query to retrieve count of total users in table
//if  query  fails stop further execution and show mysql error
$pages_query = mysql_query("SELECT COUNT('id') FROM users") or die(mysql_error());
 
//get total number of pages to be shown from  total result
$pages = ceil(mysql_result($pages_query, 0) / $per_page);
 
//get current page from URL ,if not present set it to 1
$page = (isset($_GET['page'])) ? (int)$_GET['page'] : 1 ;
 
//calculate actual start page with respect to Mysql 
$start = ($page - 1) * $per_page;
 
//execute a mysql query to retrieve  all result from current page by using LIMIT keyword in mysql
//if  query  fails stop further execution and show mysql error
$query = mysql_query("SELECT * FROM users LIMIT $start, $per_page") or die(mysql_error());
?>
 
<?php 
 
// our main pagination logic goes here
 
//store pagination result in a string so that we can place any where in page.
$pagination="";
//if current page is first show first only else reduce 1 by current page
$Prev_Page = ($page==1)?1:$page - 1;
 
//if current page is last show last  only else add  1 to  current page
$Next_Page = ($page>=$pages)?$page:$page + 1;	
 
//if we are not on first page show first link
if($page!=1) $pagination.= '<a href="?page=1">First</a>';
//if we are not on first page show previous link
if($page!=1) $pagination.='<a href="?page='.$Prev_Page.'"><code><<</code>Previous</a>';
 
//we are going to display 5 links on pagination bar
$numberoflinks=5;
 
//find the number of links to show on right of current page
$upage=ceil(($page)/$numberoflinks)*$numberoflinks;
//find the number of links to show on left of current page
$lpage=floor(($page)/$numberoflinks)*$numberoflinks;
//if  number of links on left of current page are zero we start from 1
$lpage=($lpage==0)?1:$lpage;
//find the number of links to show on right of current page and make sure it must be less than total number of pages
$upage=($lpage==$upage)?$upage+$numberoflinks:$upage;
if($upage>$pages)$upage=($pages-1);
//start building links from left to right of current page
for($x=$lpage; $x<=$upage; $x++){
//if current building link is current page we don't show link,we show as text else we show as linkn	
$pagination.=($x == $page) ? ' <strong>'.$x.'</strong>' : ' <a href="?page='.$x.'">'.$x.'</a>' ;
}
//we show next link and last link if user doesn't on last page
if($page!=$pages) $pagination.=  '  <a href="?page='.$Next_Page.'">Next>></a>';
if($page!=$pages) $pagination.=  ' <a href="?page='.$pages.'">Last</a>';
 
//display final pagination bar.
?>
 
<div class="pagination" style="text-align:center"><?php  echo $pagination; ?></div>
 
<table width="100%" border="0">
  <tr>
    <td align="center">Id</td>
    <td align="center">First Name</td>
    <td align="center">Last Name</td>
    <td align="center">Created</td>
  </tr>
 
<?php 
//while we going through each row we display info
while($row = mysql_fetch_object($query)){
?>
<tr>
    <td align="center"><?php echo $row->id;  //row id ?></td>
    <td align="center"><?php echo $row->fname; // row first name ?></td>
    <td align="center"><?php echo $row->lname; //row las tname  ?></td>
    <td align="center"><?php echo $row->created; //row created time ?></td>
  </tr>      
<?php       
	}
?>
 
</table>
<div class="pagination" style="text-align:center"><?php  echo $pagination; ?></div>

<?php 
/*
create a database 'test',and execute these two query to run the demo
CREATE TABLE `users` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `fname` varchar(255) DEFAULT NULL,
  `lname` varchar(255) DEFAULT NULL,
  `created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB  DEFAULT CHARSET=latin1;
 
/*Data for the table `users` */
 
/*insert  into `users`(`id`,`fname`,`lname`,`created`) 
values 
(1,'Mahesh','Chari','2013-04-24 09:45:42'),
(2,'Mahesh ','Guggilla','2013-04-24 09:45:55'),
(3,'Chari','Mahesh','2013-04-24 09:46:01');
*/
?>
<!DOCTYPE html >
<html >
<head>
<title>Display Mysql Data in table with PHP</title>
</head>
 
<body>
 
<?php 
//connect to mysql server with host,username,password
//if connection fails stop further execution and show mysql error
$connection=mysql_connect('localhost','root','') or die(mysql_error());
//select a database for given connection
//if database selection  fails stop further execution and show mysql error
mysql_select_db('test',$connection) or die(mysql_error());
 
//execute a mysql query to retrieve all the users from users table
//if  query  fails stop further execution and show mysql error
$query=mysql_query("SELECT * FROM users") or die(mysql_error());
 
//if we get any results we show them in table data
if(mysql_num_rows($query)>0):
 
?>
 
<table width="100%" border="0">
  <tr>
    <td align="center">Id</td>
    <td align="center">First Name</td>
    <td align="center">Last Name</td>
    <td align="center">Created</td>
  </tr>
  <?php 
  //while we going through each row we display info
  while($row=mysql_fetch_object($query)):?>
  <tr>
    <td align="center"><?php echo $row->id;  //row id ?></td>
    <td align="center"><?php echo $row->fname; // row first name ?></td>
    <td align="center"><?php echo $row->lname; //row las tname  ?></td>
    <td align="center"><?php echo $row->created; //row created time ?></td>
  </tr>
  <?php endwhile;?>
</table>
<?php 
//if we can't get results we show information
else: ?>
<h3>No Results found.</h3>
<?php endif; ?>
</body>
</html>

UPDATE categories ,
(
SELECT sms_categories.fk_cat_id,COUNT(*) AS NUMBER  
FROM sms LEFT JOIN sms_categories 
ON sms_categories.fk_sms_id=sms.sms_id GROUP BY sms_categories.fk_cat_id
) temp
 
SET categories.c_count=temp.NUMBER 
WHERE categories.c_id=temp.fk_cat_id;

/* Large desktop */
@media (min-width: 1200px) { 
 
}
 
/* Portrait tablet to landscape and desktop */
@media (min-width: 768px) and (max-width: 979px) { 
 
 
}
 
/* Landscape phone to portrait tablet */
@media (max-width: 767px) { 
 
 
}
 
/* Landscape phones and down */
@media (max-width: 480px) { 
 
}

update sms ,categories 
set sms.sms_cats= categories.c_id 
where sms.sms_category=categories.c_name;

<?php 
/*
Table structure
_________________________________________
CREATE TABLE IF NOT EXISTS `categories` (
  `c_id` int(11) NOT NULL AUTO_INCREMENT,
  `c_name` varchar(255) DEFAULT NULL,
  `c_parent` int(11) DEFAULT '0',
  `c_order` int(11) DEFAULT '0',
  PRIMARY KEY (`c_id`)
) ENGINE=InnoDB  DEFAULT CHARSET=utf8  ;
_________________________________________
INSERT INTO `categories` 
(`c_id`, `c_name`, `c_parent`, `c_order`) 
VALUES
(1, 'first category', 0, 0),
(2, 'second category', 3, 0),
(3, 'third category', 0, 0),
(4, 'fourth category', 2, 0),
(5, 'fifth category', 1, 0);
 
*/
 
mysql_connect('localhost','root','') or die(mysql_error());
mysql_select_db('yiicoupon') or die(mysql_error());
 
/*
PHP class that generate nested order list from the database. 
Here we use single mysql query .
We iterate through the single array that returned from mysql recursively. 
*/
 
class netstedCategories {
 
	/*This function generate HTML output from the recursive array of categories */
	public static function generateMenu($categories,$level){
 
		echo '<ol id="level_'.$level.'">';
		foreach($categories as $category ){
 
			echo '<li id="item_'.$category->c_id.'" >';
			echo '<div>'.$category->c_name.'</div>';
			if(isset($category->children) and count($category->children)>0){
				netstedCategories::generateMenu($category->children,$category->c_id);
			}
			echo '</li>';
		}
		echo '</ol>';
 
	}
 
	public static  function buildMenu  (){
 
		$categories=array();
		$query=mysql_query('select * from  categories order by c_order asc') or die(mysql_error());
		while($row=mysql_fetch_object($query)){
			$categories[]=$row;
		}
		//we start with root categories first
		$nestedCategories=netstedCategories::getChildren($categories,0);
		netstedCategories::generateMenu($nestedCategories,0);
 
	}
 
	/*Check if a category has children by passing total categories and parent id*/
	public static  function  hasChildren($categories,$parent_id){
 
		foreach($categories as $category){
			//if we found any single category that parent id is equal to given category id
			if($category->c_parent==$parent_id) return true;
		}
 
		//if we won't find anything we return false;
		return false;
	}
 
	/*A recursive public static function that is responsible to build nested array*/
	public static  function getChildren($categories ,$parent_id){
 
		$temp=array();
 
		foreach($categories as $category){
 
			/*We take care about given parent id ,remaning we skip*/
			if($category->c_parent==$parent_id){
 
				if(netstedCategories::hasChildren($categories,$category->c_id)){
					/*if present category has children we call this function again by passing categories
					array and current category id*/
					$category->children=netstedCategories::getChildren($categories,$category->c_id);
				}
 
				$temp[]=$category;
 
				}
		}
 
		return $temp;
 
	}
 
 
}
 
 
netstedCategories::buildMenu();
 
/*
________________________________
Final output looks like below
________________________________
<ol id="level_0">
  <li id="item_1" >
    <div>first category</div>
    <ol id="level_1">
      <li id="item_5" >
        <div>fifth category</div>
      </li>
    </ol>
  </li>
  <li id="item_3" >
    <div>third category</div>
    <ol id="level_3">
      <li id="item_2" >
        <div>second category</div>
        <ol id="level_2">
          <li id="item_4" >
            <div>fourth category</div>
          </li>
        </ol>
      </li>
    </ol>
  </li>
</ol>
*/
?>