CODEWITHSUNDEEP
android
kacper dluzak
kacper dluzak

Reputation: 13

How to set an EditText to 0 if it is left blank

Basically I have four EditText fields lets call them apple, pear, banana and orange. The user enters how many of each were bought then when you press a button it calculates the total fruit.

public class Fruit extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_fruit);
        Toolbar toolbar = findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        setTitle("Enter amount of fruit bought");
    }

    public void onButtonClick(View v) {
        EditText a = (EditText)findViewById(R.id.editText3);
        EditText p = (EditText)findViewById(R.id.editText5);
        EditText b = (EditText)findViewById(R.id.editText4);
        EditText o = (EditText)findViewById(R.id.editText6);
        TextView sum = (TextView)findViewById(R.id.textView3);

        float apple = Float.parseFloat(a.getText().toString());
        float pear = Float.parseFloat(p.getText().toString());
        float banana = Float.parseFloat(b.getText().toString());
        float orange = Float.parseFloat(o.getText().toString());
        float total;


        total=apple+pear+banana+orange;

        sum.setText(Float.toString(total));

    }}

How do I go about making sure if the user leaves a field blank the program treats it as 0 and still gives the total fruit bought?

Upvotes: 0

Views: 32

Answers (1)

Ravi Rajput
Ravi Rajput

Reputation: 539

private String ensureFruit(String str){

     return TextUtils.isEmpty(str)? "0": str;

}

and use it as 

float apple = Float.parseFloat(ensureFruit(a.getText().toString()));

Upvotes: 1

Related Questions