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Java Java Arrays Gotchas and Wins Array Usage in Method Declarations

Posted by Sondre Dahl
Sondre Dahl
10,086 Points

Error message: attempted to call method pickLunchSpot(String...) which cannot be invoked until variable spot is declared

Hi, I'm attempting to call the method pickLunchSpot in jshell, but I get the error message you see in the title. I've copied the code from the video, but for some reason mine doesn't work. Can any of you spot an error in my code? Here is the code:

import java.util.Arrays;
import java.util.Comparator;
import java.util.Random;

// Not important
String[] friends = {
  "Treasure",
  "Ben",
  "Alena",
  "Pasan",
  "Craig"
};
// The method I'm attempting to call
public String pickLunchSpot(String... spots) { 
  System.out.printf("Randomly picking %d lunch spots. %n",
                   spots.length);
  Random random = new Random();
  return spot[random.nextInt(spots.length)];
}

3 Answers

Lauren Moineau
Lauren Moineau
9,483 Points

Hi Sondre. It looks like you just have a small typo in your return statement. It should be spots (with an 's'), not spot.

return spots[random.nextInt(spots.length)];

The system is looking for a spot variable that doesn't exist.

Hope that helps :)

Sondre Dahl
Sondre Dahl
10,086 Points

Thank you! :)

Lauren Moineau
Lauren Moineau
9,483 Points

You're welcome! :)

Tonnie Fanadez
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Tonnie Fanadez
UX Design Techdegree Graduate 22,796 Points
Tonnie Fanadez
.a{fill-rule:evenodd;}techdegree seal-36
Tonnie Fanadez
UX Design Techdegree Graduate 22,796 Points

Hi Sondre Dahl

I cannot see any problem with your code.

Try supplying a String array when you call pickLunchSpot() method. for example

pickLunchSpot("Hilton", "MacDonald", "Pizza");
Evander Francis
Evander Francis
1,980 Points
Evander Francis
Evander Francis
1,980 Points

How to set this up in intelliJ?