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

Michael Sander
Michael Sander
569 Points

RandomTest.Java

i am stuck at Task 4. i can not figure out where is the mistake.

String[] facts= {};

Random randomGenerator = new Random(); int randomNumber = randomGenerator.nextInt (10); String Fact = facts[randomNumber];

RandomTest.java
String[] facts= {};

Random randomGenerator = new Random();
int randomNumber = randomGenerator.nextInt (10);
String Fact = facts[randomNumber];

1 Answer

Jennifer Nordell
STAFF
Jennifer Nordell
Treehouse Staff

Hi there! The last step of the challenge does not require an array nor does it ask for one. Line one and line 5 of your code can safely be removed. It is looking for you to create a plain old string variable just like:

String hello = "Hello World!";

It wants the number that you've generated named randomNumber to be converted to a string and then assigned to the variable intAsString. As of right now, that variable (intAsString) does not exist in your code. Note that you can convert an integer to a string through something called "type inferencing". We do this by concatenating an empty string with an integer. The result is that the integer becomes a string.

You can find a demonstration of this at around 3:15 of this video

Hope this helps! :sparkles: