Delete Specific File From Sdcard in Android

//======== Delete Specific File From SDCARD ======================


private void deleteFile() {
File list = new File(Environment.getExternalStorageDirectory() + "/Directory Name/");
File[] vidlist = list.listFiles(new FilenameFilter() {

public boolean accept(File dir, String filename) {
return ((filename.endsWith(".temp")));
}
});


for (int i = 0; i < vidlist.length; i++) {
vidlist[i].delete();
}
}

Get Device ID in Android

//======== Get Device ID ======================

public void getDeviceID() {

TelephonyManager TelephonyMgr = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);

DEVICE_ID = TelephonyMgr.getDeviceId();

}