What does String... params mean?

Question

I am following a book and got the below code:

    private class DownloadTask extends AsyncTask<String, Void, Bitmap> 
    {    
         @Override         
         protected Bitmap doInBackground(String... params) 
         {             
             String url = params[0]; 
             // ...
         }
    }

What does String... params (parameter of doInBackground() method) do?

it means you can use.. `doItBackground("Hello")` or `doItBackground("Hello", "World")` .. Not to be confused with arrays parameter. — porfiriopartida, Oct 01 '13 at 18:00
http://docs.oracle.com/javase/1.5.0/docs/guide/language/varargs.html — Raghunandan, Oct 01 '13 at 18:00

score 0 · Answer 1 · answered Oct 01 '13 at 18:02

0

This is known as Varargs and you can read more in the docs here: http://docs.oracle.com/javase/1.5.0/docs/guide/language/varargs.html

In short it means you can pass the final argument as a sequence of individual arguments or an array.

answered Oct 01 '13 at 18:02

Scott Helme

4,786
2
23
35

What does String... params mean?

1 Answers1