I did this task, but CodeGym still doesn't accept it - problem with colors order. Why? 
package com.codegym.task.task03.task0315;

/*
Roy G. Biv…

*/

public class Solution {
    public static void main(String[] args) {
        //Solution solution = new Solution();
       Solution.Red red = new Solution.Red();
       Solution.Orange orange = new Solution.Orange();
       Solution.Yellow yellow = new Solution.Yellow();
       Solution.Green green = new Solution.Green();
       Solution.Blue blue = new Solution.Blue();
       Solution.Indigo indigo = new Solution.Indigo();
       Solution.Violet violet = new Solution.Violet();//write your code here
    }

    public static class Red {
        public Red() {
            System.out.println("Red");
        }
    }

    public static class Orange {
        public Orange() {
            System.out.println("Orange");
        }
    }

    public static class Yellow {
        public Yellow() {
            System.out.println("Yellow");
        }
    }

    public static class Green {
        public Green() {
            System.out.println("Green");
        }
    }

    public static class Blue {
        public Blue() {
            System.out.println("Blue");
        }
    }

    public static class Indigo {
        public Indigo() {
            System.out.println("Indigo");
        }
    }

    public static class Violet {
        public Violet() {
            System.out.println("Violet");
        }
    }
}