簡單列舉型別——植物與顏色

Time Limit: 1000MS Memory Limit: 65536KB

Problem Description

 請定義具有red, orange, yellow, green, blue, violet六種顏色的列舉型別color，根據輸入的顏色名稱，輸出以下六種植物花朵的顏色： Rose(red), Poppies(orange), Sunflower(yellow), Grass(green), Bluebells(blue), Violets(violet)。如果輸入的顏色名稱不在列舉型別color中，例如輸入purple，請輸出I don't know about the color purple.

Input

 輸入資料有多行，每行有一個字串代表顏色名稱，顏色名稱最多30個字元，直到檔案結束為止。

Output

 輸出對應顏色的植物名稱，例如：Bluebells are blue. 如果輸入的顏色名稱不在列舉型別color中，例如purple, 請輸出I don't know about the color purple.

Example Input

blue
yellow
purple

Example Output

Bluebells are blue.
Sunflower are yellow.
I don't know about the color purple.

Hint

 請用列舉型別實現。

Author

程式碼實現：

import java.util.Scanner;

enum Color {
	
	red("Rose", "red"), 
	orange("Poppies", "orange"), 
	yellow("Sunflower","yellow"), 
	green("Grass", "green"), 
	blue("Bluebells", "blue"), 
	violet("Violets", "violet");
	
	String name;
	String color;

	Color(String name, String color) {
		this.name = name;
		this.color = color;
	}

	public String toString() {
		return name + " are " + color + ".";
	}
}

public class Main {

	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		while (input.hasNext()) {
			String inputColor = input.next();
			try{
				Color color = Color.valueOf(inputColor);
				System.out.println(color);
			}
			catch(Exception e){
				System.out.println("I don't know about the color "+inputColor+".");
			}
		}
	}
}