[答案]七色彩虹

/* 七色彩虹... */ public class Solution { public static void main(String[] args) { //write your code here Red red=new Red(); Orange orange=new Orange(); Yellow yellow=new Yellow(); Green green=new Green(); Blue blue=new Blue(); Indigo indigo=new Indigo(); Violet violet=new Violet(); } public static class Red { public Red() { System.out.println("红色"); } } public static class Orange { public Orange() { System.out.println("橙色"); } } public static class Yellow { public Yellow() { System.out.println("黄色"); } } public static class Green { public Green() { System.out.println("绿色"); } } public static class Blue { public Blue() { System.out.println("蓝色"); } } public static class Indigo { public Indigo() { System.out.println("靛色"); } } public static class Violet { public Violet() { System.out.println("紫色"); } } }