How to dynamically generate the hash value of a file while it gets downloaded from any website?

I’ve tried generating the hash value of a file that is trying to get downloaded and compared it against the list of hash values, and if there is a match then it doesn’t get downloaded.Here i have manually given the details of websites url and the file that needs to be downloaded. Now i need this to be happen dynamically i.e whenever a file from any website is trying to get downloaded then its hash value should be generated and if it matches with the list of hash values available then it shouldn’t get downloaded otherwise it can download.

I hope you understood my problem statement and I request you to help me in solving it.

How do I free up internal storage if I don’t have any apps downloaded?

I have an android voyager, RCT6773W22B. It’s version 5.0. When I first got it, and years after that, I could download at least 5 apps downloaded at a time and have a great sum of pictures in my gallery. I would still have space after this. Over time, I would delete apps I didn’t use anymore. If I wanted to download something else and there wasn’t enough space, I would delete apps and/or pictures I don’t need. Now, I can’t download anything due to internal storage. I have no apps, 5 pictures (not taken with the camera), and I’ve cleared the cache on everything except Chrome. It tells me my internal storage is completely full and I can’t move anything to an SD card. What do I do?

I have downloaded a project and when I start it, it shows me error

The error ” A project with an output type of class library cannot be started directly.In order to debug this project, add an executable project to this solution which references the library project. Set the executable project as the startup project.”

Project Link “”

I already tried to set the startup project, but nothing change.

WhatsApp is getting downloaded but not getting installed

I have Samsung Galaxy Tab 2 running on Android 4.1.2 Jelly Bean. It had a problem with restarting by itself. As it restarted too many times at a stretch, it did a factory reset on its own. It did not delete any music or image file, but all the apps got uninstalled.

I successfully reinstalled all apps, except WhatsApp. WhatsApp was getting downloaded but it was not getting installed. I don’t know why. I tried downloading it from Play Store and an app called Mobogenie. I even tried using ShareIt. The app is still not getting installed.

How to fix this and reinstall WhatsApp?

Do downloaded songs stay on my phone after the playlist changes?

I have added a dozen playlists to my library on Apple Music, which are managed by Apple or other organizations, so they get updated. When I go on road trips, I use Wi-Fi to download all those playlists before I go (because the internet reception out of the city is bad). I am using the Apple Music app on an Android phone (Samsung Galaxy S8).

I have decent storage space on my phone, and Apple Music is currently taking up 11GB. However, I want to be cautious about how much storage space is getting used up. Are the songs I downloaded from these playlists previously, in the previous version of the playlists, still stored on my phone, or are they deleted? If they are on my phone, where are they? I probably wouldn’t use the old songs, because my main way of listening to songs is to use these Apple playlists, as well as “radio station creations”. So, I would want to remove the old songs if they aren’t automatically getting removed.

To clarify: I’m not adding the songs from the playlists to my library. I’m only tapping the download button at the top of the playlist.

Is it possible to lower bitrate of music downloaded from iCloud music library to iPhone?

I have a lot of music in my iCloud Music Library, most of it matched to 256 kb/s AAC files in iTunes Match. If I were to sync music to my phone by connecting it to iTunes on my desktop, I could choose “Convert Higher Bit Rate Songs To (192/128/etc.) kb/s”. However, with iCloud Music Library turned on on my iPhone, it seems there’s no option to download them at anything less than 256 kb/s, which is eating up a significant chunk of space on my phone.

From what I’ve found (e.g. here and here), it doesn’t seem there’s any way to do this (other than syncing directly to iTunes). Is that true, or am I missing a setting somewhere?

How to save downloaded file to internal directory in android studio?

I download an SQLite database from Firebase. it saves into device Storage (Android/data/package name/files/Download). Can I save the database to the internal directory? (like assets folder to use it). I want no person can access to this file after decompiling app!

 private void downloadFileFirebase() { storageReference = FirebaseStorage.getInstance().getReference(); ref = storageReference.child("test.sqlite"); ref.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {     @Override     public void onSuccess(Uri uri) {         String url = uri.toString();         download(MainActivity.this , "test" ,".sqlite" , DIRECTORY_DOWNLOADS , url );     } }).addOnFailureListener(new OnFailureListener() {     @Override     public void onFailure(@NonNull Exception e) {     } });} 


public void download(Context context , String fileName , String fileExtension , String destinationDirectory , String url){  DownloadManager downloadManager = (DownloadManager) context.getSystemService(DOWNLOAD_SERVICE); Uri uri = Uri.parse(url); DownloadManager.Request request = new DownloadManager.Request(uri); request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED); request.setDestinationInExternalFilesDir(context , destinationDirectory , fileName + fileExtension); downloadManager.enqueue(request);}