UserNameGenerator.java

package me.escoffier.misc;

import java.util.HashSet;
import java.util.Set;

/**
 * Generates names.
 *
 * @author <a href="http://escoffier.me">Clement Escoffier</a>
 */
public class UserNameGenerator {

  private final static Set<String> used = new HashSet<>();

  public static String generate() {
    int i = 0;
    String username = null;
    while (i < 100) {
      int random1 = (int) Math.floor(Math.random() * ADJECTIVES.length);
      int random2 = (int) Math.floor(Math.random() * NOUNS.length);
      username = toTitleCase(ADJECTIVES[random1], NOUNS[random2]);

      if (!used.add(username)) {
        i++;
      } else {
        return username;
      }
    }

    return username;
  }

  private static String toTitleCase(String firstname, String lastname) {
    return firstname.substring(0, 1).toUpperCase() + firstname.substring(1)
        + " "
        + lastname.substring(0, 1).toUpperCase() + lastname.substring(1);
  }

  private static final String[] ADJECTIVES = {
      "Black","White","Gray","Brown","Red","Pink","Crimson","Carnelian","Orange","Yellow","Ivory","Cream","Green","Viridian","Aquamarine","Cyan","Blue","Cerulean","Azure","Indigo","Navy","Violet","Purple","Lavender","Magenta","Rainbow","Iridescent","Spectrum","Prism","Bold","Vivid","Pale","Clear","Glass","Translucent","Misty","Dark","Light","Gold","Silver","Copper","Bronze","Steel","Iron","Brass","Mercury","Zinc","Chrome","Platinum","Titanium","Nickel","Lead","Pewter","Rust","Metal","Stone","Quartz","Granite","Marble","Alabaster","Agate","Jasper","Pebble","Pyrite","Crystal","Geode","Obsidian","Mica","Flint","Sand","Gravel","Boulder","Basalt","Ruby","Beryl","Scarlet","Citrine","Sulpher","Topaz","Amber","Emerald","Malachite","Jade","Abalone","Lapis","Sapphire","Diamond","Peridot","Gem","Jewel","Bevel","Coral","Jet","Ebony","Wood","Tree","Cherry","Maple","Cedar","Branch","Bramble","Rowan","Ash","Fir","Pine","Cactus","Alder","Grove","Forest","Jungle","Palm","Bush","Mulberry","Juniper","Vine","Ivy","Rose","Lily","Tulip","Daffodil","Honeysuckle","Fuschia","Hazel","Walnut","Almond","Lime","Lemon","Apple","Blossom","Bloom","Crocus","Rose","Buttercup","Dandelion","Iris","Carnation","Fern","Root","Branch","Leaf","Seed","Flower","Petal","Pollen","Orchid","Mangrove","Cypress","Sequoia","Sage","Heather","Snapdragon","Daisy","Mountain","Hill","Alpine","Chestnut","Valley","Glacier","Forest","Grove","Glen","Tree","Thorn","Stump","Desert","Canyon","Dune","Oasis","Mirage","Well","Spring","Meadow","Field","Prairie","Grass","Tundra","Island","Shore","Sand","Shell","Surf","Wave","Foam","Tide","Lake","River","Brook","Stream","Pool","Pond","Sun","Sprinkle","Shade","Shadow","Rain","Cloud","Storm","Hail","Snow","Sleet","Thunder","Lightning","Wind","Hurricane","Typhoon","Dawn","Sunrise","Morning","Noon","Twilight","Evening","Sunset","Midnight","Night","Sky","Star","Stellar","Comet","Nebula","Quasar","Solar","Lunar","Planet","Meteor","Sprout","Pear","Plum","Kiwi","Berry","Apricot","Peach","Mango","Pineapple","Coconut","Olive","Ginger","Root","Plain","Fancy","Stripe","Spot","Speckle","Spangle","Ring","Band","Blaze","Paint","Pinto","Shade","Tabby","Brindle","Patch","Calico","Checker","Dot","Pattern","Glitter","Glimmer","Shimmer","Dull","Dust","Dirt","Glaze","Scratch","Quick","Swift","Fast","Slow","Clever","Fire","Flicker","Flash","Spark","Ember","Coal","Flame","Chocolate","Vanilla","Sugar","Spice","Cake","Pie","Cookie","Candy","Caramel","Spiral","Round","Jelly","Square","Narrow","Long","Short","Small","Tiny","Big","Giant","Great","Atom","Peppermint","Mint","Butter","Fringe","Rag","Quilt","Truth","Lie","Holy","Curse","Noble","Sly","Brave","Shy","Lava","Foul","Leather","Fantasy","Keen","Luminous","Feather","Sticky","Gossamer","Cotton","Rattle","Silk","Satin","Cord","Denim","Flannel","Plaid","Wool","Linen","Silent","Flax","Weak","Valiant","Fierce","Gentle","Rhinestone","Splash","North","South","East","West","Summer","Winter","Autumn","Spring","Season","Equinox","Solstice","Paper","Motley","Torch","Ballistic","Freckle","Wild","Free","Chain","Sheer","Crazy","Mad","Candle","Ribbon","Lace","Notch","Wax","Shine","Shallow","Deep","Bubble","Harvest","Fluff","Venom","Boom","Slash","Rune","Cold","Quill","Love","Hate","Garnet","Zircon","Power","Bone","Void","Horn","Glory","Cyber","Nova","Hot","Helix","Cosmic","Quark","Quiver","Holly","Clover","Polar","Regal","Ripple","Ebony","Wheat","Phantom","Dew","Chisel","Crack","Chatter","Laser","Foil","Tin","Clever","Treasure","Maze","Twisty","Curly","Fortune","Fate","Destiny","Cute","Slime","Ink","Disco","Plume","Time","Psychadelic","Relic","Fossil","Water","Savage","Ancient","Rapid","Road","Trail","Stitch","Button","Bow","Nimble","Zest","Sour","Bitter","Phase","Fan","Frill","Plump","Pickle","Mud","Puddle","Pond","River","Spring","Stream","Battle","Arrow","Plume","Roan","Pitch","Tar","Cat","Dog","Horse","Lizard","Bird","Fish","Saber","Scythe","Sharp","Soft","Razor","Neon","Dandy","Weed","Swamp","Marsh","Bog","Peat","Moor","Muck","Mire","Grave","Fair","Just","Brick","Puzzle","Skitter","Prong","Fork","Dent","Dour","Warp","Luck","Coffee","Split","Chip","Hollow","Heavy","Legend","Hickory","Mesquite","Nettle","Rogue","Charm","Prickle","Bead","Sponge","Whip","Bald","Frost","Fog","Oil","Veil","Cliff","Volcano","Rift","Maze","Proud","Dew","Mirror","Shard","Salt","Pepper","Honey","Thread","Bristle","Ripple","Glow","Zenith"
  };

  private static final String[] NOUNS = {
      "head","crest","crown","tooth","fang","horn","frill","skull","bone","tongue","throat","voice","nose","snout","chin","eye","sight","seer","speaker","singer","song","chanter","howler","chatter","shrieker","shriek","jaw","bite","biter","neck","shoulder","fin","wing","arm","lifter","grasp","grabber","hand","paw","foot","finger","toe","thumb","talon","palm","touch","racer","runner","hoof","fly","flier","swoop","roar","hiss","hisser","snarl","dive","diver","rib","chest","back","ridge","leg","legs","tail","beak","walker","lasher","swisher","carver","kicker","roarer","crusher","spike","shaker","charger","hunter","weaver","crafter","binder","scribe","muse","snap","snapper","slayer","stalker","track","tracker","scar","scarer","fright","killer","death","doom","healer","saver","friend","foe","guardian","thunder","lightning","cloud","storm","forger","scale","hair","braid","nape","belly","thief","stealer","reaper","giver","taker","dancer","player","gambler","twister","turner","painter","dart","drifter","sting","stinger","venom","spur","ripper","swallow","devourer","knight","lord","queen","king","master","prince","princess","duke","samurai","ninja","knave","sage","wizard","witch","warlock","warrior","jester","paladin","bard","trader","sword","shield","knife","dagger","arrow","bow","fighter","bane","follower","leader","scourge","watcher","cat","panther","tiger","cougar","puma","jaguar","ocelot","lynx","lion","leopard","ferret","weasel","wolverine","bear","raccoon","dog","wolf","kitten","puppy","cub","fox","hound","terrier","coyote","hyena","jackal","pig","horse","donkey","stallion","mare","zebra","antelope","gazelle","deer","buffalo","bison","boar","elk","whale","dolphin","shark","fish","minnow","salmon","ray","fisher","otter","gull","duck","goose","crow","raven","bird","eagle","raptor","hawk","falcon","moose","heron","owl","stork","crane","sparrow","robin","parrot","cockatoo","carp","lizard","gecko","iguana","snake","python","viper","boa","condor","vulture","spider","fly","scorpion","heron","oriole","toucan","bee","wasp","hornet","rabbit","bunny","hare","brow","mustang","ox","piper","soarer","flasher","moth","mask","hide","hero","antler","chill","chiller","gem","ogre","myth","elf","fairy","pixie","dragon","griffin","unicorn","pegasus","sprite","fancier","chopper","slicer","skinner","butterfly","legend","wanderer","rover","raver","loon","lancer","glass","glazer","flame","crystal","lantern","lighter","cloak","bell","ringer","keeper","centaur","bolt","catcher","whimsey","quester","rat","mouse","serpent","wyrm","gargoyle","thorn","whip","rider","spirit","sentry","bat","beetle","burn","cowl","stone","gem","collar","mark","grin","scowl","spear","razor","edge","seeker","jay","ape","monkey","gorilla","koala","kangaroo","yak","sloth","ant","roach","weed","seed","eater","razor","shirt","face","goat","mind","shift","rider","face","mole","vole","pirate","llama","stag","bug","cap","boot","drop","hugger","sargent","snagglefoot","carpet","curtain"
  };
}