Class TwentyQuestions

Object
TwentyQuestions
public class TwentyQuestions extends Object

  • Constructor Summary

    Constructors
    Constructor
    Description
    TwentyQuestions()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static String
    nameIntroduction(String playerName)
    The return string is based on the player's name.
    static String
    numberInfo(int number)
    Depending on the value of the number, return one of the following statements: If the number is less than 10 but greater than 0, return "a single digit.". If the number is 7 return "lucky sevens!". If the number is 42, return "the answer to life the universe and everything.". Otherwise return "a positive number.". Hint: Your `if` statements should go from most specific to least specific.
    static int
    playGame(int guess, int num)
    Compares player's guess to the actual number.

    Methods inherited from class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • TwentyQuestions

      public TwentyQuestions()

  • Method Details

    • nameIntroduction

      public static String nameIntroduction(String playerName)
      The return string is based on the player's name. Before working with the branching, make the entire playerName parameter upper-case using the .toUpperCase() method. This is to assist in branching when comparisons are made. For example: String upperCase = lowerCase.toUpperCase();

      Implementation Hints:

      • If the first letter of the player's name is in the first half of the alphabet (Up to and including M) the message starts with: "Hi [playerName]".
      • Otherwise the message starts: "Hello [playerName]".
      • If the playerName is less than or equal to 5 characters long, the message ends: ", are you up to the challenge?".
      • Otherwise the message ends: ", good luck!".
      • Note: to get the length of the String, call .length(). For example: int len = playerName.length();

      Examples:

      • If input is "Sam", output is "Hello SAM, are you up to the challenge?".
      • If input is "fenris_wolf", output is "Hi FENRIS_WOLF, good luck!
      • If the playerName is less than or equal to 5 characters long, the message ends: ", are you up to the challenge?".
      • Otherwise the message ends: ", good luck!".
      Parameters:
      playerName - the player's name
      Returns:
      a string introduction

    • playGame

      public static int playGame(int guess, int num)
      Compares player's guess to the actual number.

      Implementation Hints:

      • If the guess was correct (the guess and num are equal), return 0.
      • If the guess was incorrect, check if guess is less than num. If so, print "Too low." followed by a new line and return -1.
      • If guess is higher than num, print "Too high." followed by a new line and return 1.

      Examples:

      • If guess is 20 and num is 21, output is "Too low." and -1 is returned.
      • If guess is 50 and num is 18, output is "Too high." and 1 is returned.
      • If guess is 42 and num is 42, 0 is returned.
      Parameters:
      guess - the player's guess
      num - the actual number
      Returns:
      an int, 0 if the guess is correct, -1 if too low, 1 if too high

    • numberInfo

      public static String numberInfo(int number)
      Depending on the value of the number, return one of the following statements:
      • If the number is less than 10 but greater than 0, return "a single digit.".
      • If the number is 7 return "lucky sevens!".
      • If the number is 42, return "the answer to life the universe and everything.".
      • Otherwise return "a positive number.".
      Hint: Your `if` statements should go from most specific to least specific. If one answer falls under multiple categories, return the most specific one. For example if the number is 7, the method should return "lucky sevens!" not "a single digit.".
      Parameters:
      number - the number to look at
      Returns:
      string with the message that is listed above