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Android Build a Simple Android App (retired 2014) Learning the Language Objects and Random Numbers

Posted by Eric Dotson
Eric Dotson
1,933 Points

Bummer! Check the parameter you're using for 'nextInt()'. Hint: 0 through 9 is a total of 10 choices.

this is the error I keep getting in this is my code what am I doing wrong?

Random randomGenerator = new Random();//Constructa new Random number generator int randomNumber = randomGenerator.nextInt(1)

3 Answers

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

you need a generate a number between 0 and 9. you are currently only generating a number between 0 and 1 exclusively (so only 0 will be generated)

if I wanted to generate a number between 0 and 5 I would use 

int randomNumber = randomGenerator.nextInt(6);
Eric Dotson
Eric Dotson
1,933 Points
Eric Dotson
Eric Dotson
1,933 Points

I tried that i went threw every number between 0 and nine it still gave that error

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

the number you pass to the method is exclusive. you said youve tried 0 through 9, try using 10.

Eric Dotson
Eric Dotson
1,933 Points
Eric Dotson
Eric Dotson
1,933 Points

thanks it worked