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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10.     public static void main (String[] args)
  11.     {
  12.         System.out.println("Converted \"fishing\" to " + replaceDtmf("fishing"));
  13.         System.out.println("Converted \"kidneys\" to " + replaceDtmf("kidneys"));
  14.         System.out.println("Converted \"1-800-AWESOME\" to " + replaceDtmf("1-800-AWESOME"));
  15.     }
  16.  
  17.     private static final char[] keys = {
  18.                                         '2', '2', '2',      // A B C
  19.                                         '3', '3', '3',      // D E F
  20.                                         '4', '4', '4',      // G H I
  21.                                         '5', '5', '5',      // J K L
  22.                                         '6', '6', '6',      // M N O
  23.                                         '7', '7', '7', '7', // P Q R S
  24.                                         '8', '8', '8',      // T U V
  25.                                         '9', '9', '9', '9'  // W X Y Z
  26.                                 };
  27.  
  28.     public static String replaceDtmf(String str)
  29.     {
  30.         if (str == null || str.isEmpty()) {
  31.             return str;
  32.         }
  33.  
  34.         str = str.toUpperCase();
  35.         StringBuilder result = new StringBuilder();
  36.  
  37.         for (int i = 0; i < str.length(); i++) {
  38.             int index = str.charAt(i) - 'A';
  39.             if (index >= 0 && index < keys.length) {
  40.                 result.append( keys[ index ] );
  41.             }
  42.             else {
  43.                 result.append( str.charAt(i) );
  44.             }
  45.         }
  46.  
  47.         return result.toString();
  48.     }
  49. }
Success #stdin #stdout 0.1s 320512KB
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stdin
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Standard input is empty
stdout
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Converted "fishing" to 3474464
Converted "kidneys" to 5436397
Converted "1-800-AWESOME" to 1-800-2937663
https://ideone.com/k2jose
language:
Java (12.0.1)
created:
10 years ago
visibility:
public

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