public class Weight extends AppCompatActivity implements View.OnClickListener {

    public static AutoCompleteTextView userWeight;
    private Button secondPage;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_weight);

        userWeight =(AutoCompleteTextView) findViewById(R.id.weight);
        secondPage = (Button) findViewById(R.id.toHeightPage);

        secondPage.setOnClickListener(this);

    }




    }

    private void enterWeight(){
        String weight = userWeight.getText().toString().trim();

        if(TextUtils.isEmpty(weight)){
            Toast.makeText(Weight.this,"Please Enter your weight", Toast.LENGTH_SHORT).show();


        return;
    }

public class Main_Interface extends AppCompatActivity {
    public TextView results;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main__interface);

        Toolbar toolbar = findViewById(R.id.toolbar1);
        setSupportActionBar(toolbar);

        results = (TextView)findViewById(R.id.results);





    }
    public void calculateBMR(){

    }