Cyber Monday Sale! — Courses Plus annual subscription for only $299 per year!

Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Android Build a Simple Android App with Java Basic Android Programming Using the Random Class

Posted by Cody Sharpe
Cody Sharpe
262 Points

How do you do this???

Initialize a new Random variable called randomGenerator. Hint: Don't forget to use the new keyword.

RandomTest.java 
Random randomGenerator;
 int randomNumber = randomGenerator.nextInt( facts.length);
                String fact =  facts [randomNumber] ;
                factTextView.setText(fact);

1 Answer

Steve Hunter
Steve Hunter
57,680 Points
Steve Hunter
Steve Hunter
57,680 Points

Hi Cody,

The code starts with a variable named randomGenerator of type Random. What you need to do is to put a new random number in that variable. To do this, you call the constructor by using the new keyword - the constructor is always called the same as the class and has brackets after it. So, here you will end up with:

Random randomGenerator = new Random();

I hope that helps.

Steve.