How can I retrieve values from Firebase database based on email entered by user in text field?

Question

I am working on Firebase database. How can I retrieve values from database based on email entered by user in text field. Below is my database structure. Kindly help.

Answer 1

Try this! here I am running for each loop to get each child.

Ref.child("UserRegistration").child("email").addValueEventListener(new ValueEventListener() {
            @Override
            public void onDataChange(DataSnapshot dataSnapshot) {

                for (DataSnapshot snapshot:dataSnapshot.getChildren()){
                    user_reg user=dataSnapshot.getValue(user_reg.class);
                    System.out.println(user.email);
                }
            }

            @Override
            public void onCancelled(DatabaseError databaseError) {

            }
        });