Question

I was wondering about something very basic but that I haven’t been able to figure out. I’ve read the similar questions, but they don’t particularly answer my question.

Let’s say I have a string. I want to convert it into a double. Now I see that there is a function known as parseDouble in java.lang.Double. However, how do I call it? The string is in my Android strings.xml file if that’s any help.

Thanks.

Answer 1

To get the String from your xml file in an Activity, use

String s = this.getString(R.string.mystring);

You convert it to a double in the way OscarRyz said, although if you don’t want a Double object you can do

double d = Double.parseDouble(s);

You can also do it all in one step:

double d = Double.parseDouble(this.getString(R.string.mystring));