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  1. import java.io.*;
  2.  
  3.  
  4.  
  5. class Ideone 
  6. {
  7.  
  8.  
  9. 	public static String result;
  10. 	public static void main(String s[]) throws IOException
  11.  
  12. 	{
  13.  
  14. 		System.out.println("\nenter the input Number\n");
  15. 		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
  16. 		String input=br.readLine();
  17.  
  18. 		combination("",input);
  19.  
  20.  
  21.  
  22. 	}
  23.  	public static void combination(String result, String input) 
  24.    	{
  25.         	StringBuilder result1 = new StringBuilder(result);
  26.         	StringBuilder result2 = new StringBuilder(result);
  27.         	if("".equalsIgnoreCase(input))
  28. 	 	{
  29.             		System.out.println( result);
  30.             		return; }
  31.  if(input.length() >= 1)
  32. 		 {
  33.            		 int singleNum = Integer.parseInt(input.substring(0, 1));
  34.             		 result1.append(translate(input.substring(0, 1)));
  35.             		 combination(result1.toString(), input.substring(1));
  36.         	 }
  37.         	if(input.length() >= 2) 
  38. 		{
  39.             		int doubleNum = Integer.parseInt(input.substring(0, 2));
  40.             		if (doubleNum <= 26)
  41. 			 {
  42.                 		result2.append(translate(input.substring(0, 2)));
  43.                 		combination(result2.toString(), input.substring(2));
  44.             		 }
  45. 		}
  46.         }
  47.  
  48.  
  49.  
  50.  
  51. 	public static char translate(String a)
  52. 	{
  53. 		switch(a)
  54. 		{
  55. 			case "1" :
  56. 				return 'a';
  57. 			case "2" :
  58. 				return 'b';
  59. 			case "3" :
  60. 				return 'c';
  61. 			case "4":
  62. 				return 'd';
  63. 			case "5":
  64. 				return 'e';
  65. 			case "6":
  66. 				return 'f';
  67. 			case "7":
  68. 				return 'g';
  69. 			case "8":
  70. 				return 'h';
  71. 			case "9":
  72. 				return 'i';
  73. 			case "10":
  74. 				return 'j';
  75. 			case "11" :
  76. 				return 'k';
  77. 			case "12":
  78. 				return 'l';
  79. 			case "13":
  80. 				return 'm';
  81. 			case "14":
  82. 				return 'n';
  83. 			case "15":
  84. 				return 'o';
  85. 			case "16":
  86. 				return 'p';
  87. 			case "17":
  88. 				return 'q';
  89. 			case "18":
  90. 				return 'r';
  91. 			case "19":
  92. 				return 's';
  93. 			case "20":
  94. 				return 't';
  95. 			case "21":
  96. 				return 'u';
  97. 			case "22":
  98. 				return 'v';
  99. 			case "23":
  100. 				return 'w';
  101. 			case "24":
  102. 				return 'x';
  103. 			case "25":
  104. 				return 'y';
  105. 			case "26":
  106. 				return 'z';
  107. 			default :
  108. 				return '0';
  109.  
  110. 		}
  111.  
  112. 	}
  113.  
  114.  
  115.  
  116.  
  117.  
  118.  
  119.  
  120. }
Success #stdin #stdout 0.11s 320512KB
comments (?)
stdin
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12258
stdout
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enter the input Number

abbeh
abyh
aveh
lbeh
lyh
https://ideone.com/Hjw41G
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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