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

Filip Stefanovski
Filip Stefanovski
2,371 Points
Posted by Filip Stefanovski
Filip Stefanovski
2,371 Points

Don't know what to do here.

Tried declaring randomGenerator (Random randomGenerator = new Random ();) I also used int randomNumber = randomGenerator.nextInt (); .

RandomTest.java 
Random randomGenerator;
int randomGenerator = new Random ();

2 Answers

Steve Hunter
Steve Hunter
57,712 Points

You might be on the second task? The code I posted will pass the first task of the challenge.

From memory, the second task requires you to create a new int variable called randomNumber and to use the nextInt() method on the `randomGenerator instance with no range set. Correct?

That looks like:

Random randomGenerator = new Random();
int randomNumber = randomGenerator.nextInt();

Is that where you are at?

Steve.

Filip Stefanovski
Filip Stefanovski
2,371 Points
Filip Stefanovski
Filip Stefanovski
2,371 Points

I am still on the first task aka ("Initialize a new Random variable called randomGenerator. Hint: Don't forget to use the new keyword.") . Tried the ( Random rendomGenerator = new Random (); ) doesn't work think its a bug. while using this code there is a compiler error that states "JavaTester.java:65: error: variable randomGenerator is already defined in method run() Random randomGenerator = new Random () ; ^ 1 error" there is most likely a bug preventing me from goin forward. Also tried using incognito mode since I was told my plugins in chrome might affect the compilers in the worbenches.

Steve Hunter
Steve Hunter
57,712 Points

You typed randomGenerator wrong in that. The first task is as I explained above:

Random randomGenerator = new Random();

No brackets around it, just as it looks there.

Filip Stefanovski
Filip Stefanovski
2,371 Points
Filip Stefanovski
Filip Stefanovski
2,371 Points

Thank you a ton steve! I just found out what the problem was it wasn't the code but I had to delete the text that was written by default aka ( Random randomGenerator; ), when deleted I passed just fine but since I didn't have to do that in the exercises till now I hadn't had a clue that the aforementioned text would cause a compiler error when not deleted. Well in any case this should be fixed so that people wouldn't get stuck for so long just like I did. Thanks again!

Steve Hunter
Steve Hunter
57,712 Points

Hi Filip,

There's no requirement to delete the code that the challenge gives you. I have no idea what issue you had there.

I will have a look at your code in more detail.

Steve.

Steve Hunter
Steve Hunter
57,712 Points
Steve Hunter
Steve Hunter
57,712 Points

Hi Filip,

The challenge comes with a Random sized variable waiting for you to store your new Random() in. You've got that bit of code, so just assign it into the existing variable either on a new line (delete the keyword int) or all in one line:

Random randomGenerator = new Random();

I hope that helps ,

Steve.

Filip Stefanovski
Filip Stefanovski
2,371 Points
Filip Stefanovski
Filip Stefanovski
2,371 Points

Thanks for the response . I tried doing that and it didn't work, also tried adding ( int randomNumber = randomGenerator.nextInt (); ) although that didn't help at all. There might be a bug with the engine or another way to do this, still the video didn't show me any other way :P. Have been trying multiple things still to no avail.