Firebase Recycler view

 1.MainActivity.class

package abhiandroid.com.practice;

import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.os.Bundle;

import com.firebase.ui.database.FirebaseRecyclerOptions;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;

public class MainActivity2 extends AppCompatActivity {

    Adapter adapter; // Create Object of the Adapter class

    RecyclerView rcy;
    DatabaseReference mbase;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);
        rcy = findViewById(R.id.rcy);
        rcy.setLayoutManager(new LinearLayoutManager(this));

        mbase = FirebaseDatabase.getInstance().getReference().child("Student");

        FirebaseRecyclerOptions<Model> options
                = new FirebaseRecyclerOptions.Builder<Model>()
                        .setQuery(mbase, Model.class)
                        .build();

         adapter = new Adapter(options);

        rcy.setAdapter(adapter);


     //onStart();
    // onStop();

    }
    @Override
    protected void onStart() {
        super.onStart();
        adapter.startListening();
    }

}

2.

package abhiandroid.com.practice;

public class Model {
    String name, address;

    Model(){

    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    public Model(String name, String Address) {
        this.name = name;
        this.address = address;


    }
}

3.

package abhiandroid.com.practice;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import com.firebase.ui.database.FirebaseRecyclerAdapter;
import com.firebase.ui.database.FirebaseRecyclerOptions;

public class Adapter extends FirebaseRecyclerAdapter< Model,Adapter.myViewHolder> {



    public Adapter(@NonNull FirebaseRecyclerOptions<Model> options) {
        super(options);
    }

    @Override
    protected void onBindViewHolder(@NonNull myViewHolder holder, int position, @NonNull Model model) {

        holder.textView.setText(model.getName());
        holder.textView2.setText(model.getAddress());


    }

    @NonNull
    @Override
    public myViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {

      View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item,parent,false);

        return new myViewHolder(view);


    }

    public class myViewHolder extends RecyclerView.ViewHolder {

        TextView textView, textView2;
       public myViewHolder(@NonNull View itemView) {
           super(itemView);

           textView = itemView.findViewById(R.id.textView);
           textView2 = itemView.findViewById(R.id.textView2);


       }
   }
}

4.

5.