Question

I have a TextView where is set my budget. For example, 100$. When I press a button I introduce a new value, for example 40$, and I want to display in my TextView the addition of 100$ (initial value from TextView) and 40$(what I introduced). That’s mean 140$.How can I do that?

Answer 1

double newValue = 40;
String txtOld = txtView.getText();
txtOld.replace("$","");
double oldValue = Double.parseDouble(txtOld);
txtView.setText((oldValue + newValue)+"$");