NullPointerException AlertDialog.Builder

Hi everyone

I've been looking into this for a couple of hours and changed the code quite a few times however the nullpointerexception error is still appearing

The problem is occuring when my "WorkOn" class calls another class called "Dialogs"

So this is my WorkOn Class

Code (Java):

1.     Dialogs saveDialog = new Dialogs(context);

2. //constructor

3.     public WorkOn(Context context) {

4.     this.context = context;

5. }

6.     public void OnTime(View v) {

7.             saveDialog.WorkOnSavedDialog(v);

8.         }

9.     });

10. }

This is my Dialogs class

Code (Java):

1. public class Dialogs extends AppCompatActivity  {

2. //constructor

3.     this.context = context;

4. }

5. public void WorkOnSavedDialog(View v) {

6.     AlertDialog.Builder alert = new AlertDialog.Builder(Dialogs.this);

7.     alert.setTitle("Work On File Saved");

8.     alert.setMessage("[Displaying for Test] Work On File Saved");

9.     alert.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {

10.                 public void onClick(DialogInterface dialog, int which) {

11.                     // continue with delete

12.                 }

13.             });

14.     alert.setNegativeButton(android.R.string.no, new DialogInterface.OnClickListener() {

15.                 public void onClick(DialogInterface dialog, int which) {

16.                     // do nothing

17.                 }

18.             });

19.     alert.setIcon(android.R.drawable.ic_dialog_alert);

20.     alert.show();

21. }

22. }

The nullpointer excpection is happening because of

Code (Java):

1. AlertDialog.Builder alert = new AlertDialog.Builder(Dialogs.this);

do you have any idea why this is happening?

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NullPointerException AlertDialog.Builder