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

Posted by Ivan Susac
Ivan Susac
585 Points

Simple App Challenge

Not sure how to solve this as i get compiler error all the time. Any help would be apriciated

RandomTest.java 
Random randomGenerator = new Random();
int randomNumber = randomGenerator.nextInt(0:9);
Ivan Susac
Ivan Susac
585 Points

Question: Now limit the range of the randomNumber variable from 0 to 9. Use the version of nextInt() that takes a parameter specifying how many numbers to choose from.

1 Answer

Donatas Zilenas
Donatas Zilenas
8,384 Points
Donatas Zilenas
Donatas Zilenas
8,384 Points

Hi , in Java nextInt(int number) method takes only one parameter, that parameter is the higher number of your condition, so in your case it should be:

Random randomGenerator = new Random();
int randomNumber = randomGenerator.nextInt(9); // You will get numbers from 0 to 8

If you want get numbers from 1 to 9 :

Random randomGenerator = new Random();
int randomNumber = randomGenerator.nextInt(9)+1;

Hope this helps