[SOLVED] Random word generator - Solution inside

Discussion in 'Plugin Development' started by beatcomet, Jul 15, 2011.

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  1. Offline

    beatcomet

    Hi guys, I need some help.
    I'm developing a plugin that uses a radom word generator.
    I managed to make this king of system using switch and 2 variables (String and int)
    Every letter gets a number and by using a random i'm generating a number which is being convered into a String and added to the name.

    Here is the currnt system :
    Code:java
    1.  
    2. Random rand = new Random();
    3. 		String gname = "";
    4. 		String iletter = "";
    5. 		int letter;
    6.  
    7. 		while (gname.length() < 8){
    8. 			letter = rand.nextInt(36-1+1)+1;
    9. 			switch (letter){
    10. 			case 1:
    11. 				iletter = "A";
    12. 				break;
    13. 			case 2:
    14. 				iletter = "B";
    15. 				break;
    16. 			case 3:
    17. 				iletter = "C";
    18. 				break;
    19. 			case 4:
    20. 				iletter = "D";
    21. 				break;
    22. 			case 5:
    23. 				iletter = "E";
    24. 				break;
    25. 			case 6:
    26. 				iletter = "F";
    27. 				break;
    28. 			case 7:
    29. 				iletter = "G";
    30. 				break;
    31. 			case 8:
    32. 				iletter = "H";
    33. 				break;
    34. 			case 9:
    35. 				iletter = "I";
    36. 				break;
    37. 			case 10:
    38. 				iletter = "J";
    39. 				break;
    40. 			case 11:
    41. 				iletter = "K";
    42. 				break;
    43. 			case 12:
    44. 				iletter = "L";
    45. 				break;
    46. 			case 13:
    47. 				iletter = "M";
    48. 				break;
    49. 			case 14:
    50. 				iletter = "N";
    51. 				break;
    52. 			case 15:
    53. 				iletter = "O";
    54. 				break;
    55. 			case 16:
    56. 				iletter = "P";
    57. 				break;
    58. 			case 17:
    59. 				iletter = "Q";
    60. 				break;
    61. 			case 18:
    62. 				iletter = "R";
    63. 				break;
    64. 			case 19:
    65. 				iletter = "S";
    66. 				break;
    67. 			case 20:
    68. 				iletter = "T";
    69. 				break;
    70. 			case 21:
    71. 				iletter = "U";
    72. 				break;
    73. 			case 22:
    74. 				iletter = "V";
    75. 				break;
    76. 			case 23:
    77. 				iletter = "W";
    78. 				break;
    79. 			case 24:
    80. 				iletter = "X";
    81. 				break;
    82. 			case 25:
    83. 				iletter = "Y";
    84. 				break;
    85. 			case 26:
    86. 				iletter = "Z";
    87. 				break;
    88. 			case 27:
    89. 				iletter = "1";
    90. 				break;
    91. 			case 28:
    92. 				iletter = "2";
    93. 				break;
    94. 			case 29:
    95. 				iletter = "3";
    96. 				break;
    97. 			case 30:
    98. 				iletter = "4";
    99. 				break;
    100. 			case 31:
    101. 				iletter = "5";
    102. 				break;
    103. 			case 32:
    104. 				iletter = "6";
    105. 				break;
    106. 			case 33:
    107. 				iletter = "7";
    108. 				break;
    109. 			case 34:
    110. 				iletter = "8";
    111. 				break;
    112. 			case 35:
    113. 				iletter = "9";
    114. 				break;
    115. 			case 36:
    116. 				iletter = "-";
    117. 				break;
    118. 			}
    119. 			gname = gname + iletter;
    120. 		}
    121. 	}
    122.  


    As you can see, i'm using a while loop and then generating a random number that is being added to the word, at last you get a word made out of random letters and numbers.

    Is there a way to make it shorter?
    If there is pleas teach me how :)

    Solved!!
    This code is way shorter than the old one!!
    tested it using System.out.println and it generates a random word.
    Code:java
    1.  
    2. int maxlength = 8;
    3. 		final String chars = "abcdefghijklmnopqrstuvwxyz123456789-";
    4. 		String word = "";
    5. 		while(word.length() < maxlength){
    6. 			Random rand = new Random();
    7. 			int x = rand.nextInt(36 - 1 + 1) +1 ;
    8. 			word = word + chars.charAt(x);
    9. 			System.out.println(word.toUpperCase());
    10. 		}
    11.  


    what did I do ?
    maxlength : is the length of the generated word
    String word : the word, it's empty at the beggining but this function adds chars to it!
    while loop : used to check if the word is at the right length, comparing it to the maxlength.
    x : used as a variable, The rundom bumber generator generates a number and the number will be used to get one of the chars from the String chars, ant put it in the new word.
     
    beatcomet, Jul 15, 2011
    #1
  2. Offline

    Shamebot

    If you want to generate a random seed, you simply can use a random long.
     
    Shamebot, Jul 16, 2011
    #2
  3. Offline

    beatcomet

    not a random seed but a code (for the redeemcodes plugin I made), as you can see the old method was long and long. So I managed to make it a lot shorter and now i'm happy :)
     
    beatcomet, Jul 16, 2011
    #3
  4. Offline

    Shamebot

    ah i misread the title, it's word not world. You could also cast a random byte to a char, but there would be special characters in it.
     
    Shamebot, Jul 16, 2011
    #4
  5. Offline

    beatcomet

    Yea I know :)
    The only thing matters is that it's working and it's shorter than the mega code I use at first ;)
     
    beatcomet, Jul 16, 2011
    #5
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