String calorie = getIntent().getStringExtra("calorie");
        TextView textView1 = (TextView)findViewById(R.id.textView1);
        String strOldValue = textView1.getText().toString();

        Integer oldValue;
        try{
            oldValue= Integer.parseInt(myString);
        }catch(NumberFormatException e){
            oldValue =0;
        }

        Integer newValue;
        try{
            newValue= Integer.parseInt(calorie);
        }catch(NumberFormatException e){
            newValue =0;
        }
        textView1.setText((oldValue + newValue));