CODEWITHSUNDEEP
javaarraysrandomcolors
FaDeOuT667
FaDeOuT667

Reputation: 13

How to get a Random Colour in an array in java

I'm creating a program which generates a random car with a random price, year, colour, etc... I know how to randomize the year by using Math.random, but I'm not sure how to get a random colour. I think making an array full of colours and picking a random element from the array, but I'm not sure how to do that. Any help is greatly appreciated

Upvotes: 1

Views: 2636

Answers (2)

user7627726
user7627726

Reputation:

You can use the Random method (import java.util.Random;). Here's an example to make a random company, and you can copy this for the model, color, price, etc.

String[] Company = {"Honda", "Toyota", "Ford", "Chevrolet", "Lexus", "Jeep"}// add whatever companies you want here
Random rand = new Random();
int NumberOfAnswers = Company.length;
int pick = rand.nextInt(NumberOfAnswers);
String CompanyChoice = Company[pick];
System.out.println("The company of your car is " + CompanyChoice);

Repeat this for the model, color, or whatever else you want. Note: you do not need to repeat Random rand = new Random();, because it only needs to be declared once.

Upvotes: 1

Gyrotank
Gyrotank

Reputation: 153

I think that the most convenient way is making an enum with a method to produce a random element. This way we achieve encapsulation and reuse.

public enum Colour {
    Red,
    Orange,
    Green;

    private static final List<Colour> VALUES =
        Collections.unmodifiableList(Arrays.asList(values()));
    private static final Random RANDOM = new Random();

    public static Colour randomColour()  {
        return VALUES.get(RANDOM.nextInt(VALUES.size()));
    }
}

Upvotes: 0

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