使用While循环

时间:2015-10-10 01:55:54

标签: java nullpointerexception

6。)情景 - 你正和你的小表弟一起玩猜谜游戏。她想让你猜出她最喜欢的颜色。使用While循环创建程序。下面是我写的代码但是在while循环中遇到了问题。

package loopscenario;
import java.util.Scanner;
import java.util.Random;
/**
 *
 * @author macbook
 */
public class LoopScenario6 {
public static void main(String[] args)
{
 String blue = null;
 String yellow = null ;
 String red = null;
 String pink = "pink";
 String favoriteColor = null;

 Scanner keyboard = new Scanner(System.in);
 Random randomNumber = new Random();
 Random aRan = new Random();


 while (!favoriteColor.equalsIgnoreCase(pink))

     if (favoriteColor.equalsIgnoreCase(blue))
     {
         System.out.println("Wrong color. Please try again.");
     }
     else if( favoriteColor.equalsIgnoreCase(yellow))
     {
       System.out.println("Wrong color. Please try again.");  
     }
     else if ( favoriteColor.equalsIgnoreCase(red))
     {
      System.out.println("Wrong color. Please try again.");     
     }
    else 
     {
      System.out.println("Yes!");     
     }
    }
}

0 个答案:

没有答案