18.报时助手

问题描述
  给定当前的时间,请用英文的读法将它读出来。
  时间用时h和分m表示,在英文的读法中,读一个时间的方法是:
  如果m为0,则将时读出来,然后加上“o'clock”,如3:00读作“three o'clock”。
  如果m不为0,则将时读出来,然后将分读出来,如5:30读作“five thirty”。
  时和分的读法使用的是英文数字的读法,其中0~20读作:
  0:zero, 1: one, 2:two, 3:three, 4:four, 5:five, 6:six, 7:seven, 8:eight, 9:nine, 10:ten, 11:eleven, 12:twelve, 13:thirteen, 14:fourteen, 15:fifteen, 16:sixteen, 17:seventeen, 18:eighteen, 19:nineteen, 20:twenty。
  30读作thirty,40读作forty,50读作fifty。
  对于大于20小于60的数字,首先读整十的数,然后再加上个位数。如31首先读30再加1的读法,读作“thirty one”。
  按上面的规则21:54读作“twenty one fifty four”,9:07读作“nine seven”,0:15读作“zero fifteen”。

输入格式
  输入包含两个非负整数h和m,表示时间的时和分。非零的数字前没有前导0。h小于24,m小于60。

输出格式
  输出时间时刻的英文。

样例输入
0 15

样例输出
zero fifteen
 
  
 
  
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;
 
public class Main
{
     public static String[] time = { "" , "zero" , "one" , "two" , "three" , "four" , "five" , "six" , "seven" , "eight" , "nine" , "ten" , "eleven" , "twelve" , "thirteen" , "fourteen" , "fifteen" , "sixteen" , "seventeen" , "eighteen" , "nineteen" };
     public static String[] time2 = { "twenty" , "thirty" , "forty" , "fifty" };
     public static void main(String[] args)
     {
         Scanner scanner =  new Scanner(System.in);
         while (scanner.hasNext())
         {
             int h = scanner.nextInt();
             int m = scanner.nextInt();
             
             if (h <  20 )
             {
                 System.out.print(time[h +  1 ]);
             }
             else
             {
                 System.out.print( "twenty" " " + time[h -  20 ]);
             }
             
             if (m ==  0 )
             {
                 System.out.print( " " "o'clock" );
             }
             else
             {
                 if (m <  20 )
                 {
                     System.out.print( " " + time[m +  1 ]);
                 }
                 else
                 {
                     int a = m /  10 ;
                     int b = m %  10 ;
                     System.out.print( " " + time2[a -  2 ] +  " " + time[b +  1 ]);
                 }
             }
             
             System.out.println();
         }
     }
}

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