Remove Specific value From Firebase Database

Question

I want to Delete Specific value from Firebase Database following is Database which i have stored

Now, I want to Delete Fol

Answer 1

hi try using this code,

    mReference.child("demo").orderByChild("fname").equalTo("John").addListenerForSingleValueEvent(
            new ValueEventListener() {
                @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
            mReference.child("demo").child(dataSnapshot.getKey()).setValue(null);
        }

       @Override
         public void onCancelled(DatabaseError databaseError) {
              Log.w("TodoApp", "getUser:onCancelled", databaseError.toException());
         }
});