HowToPlay.java

import java.io.*;

class HowToPlay
{
    static void display()throws Exception
    {
        System.out.print("\u000C");
        BufferedReader br= new BufferedReader(new InputStreamReader(System.in));
        System.out.print("Mastermind is a code-breaking game for two players –");
        System.out.println("a code maker and a code breaker.");
        System.out.print("With four pegs and six colors, there are (6)^4 = ");
        System.out.println("1296 different patterns (allowing duplicate colors).");
        System.out.print("Varying the number of colors and the number of holes results in a ");
        System.out.println("spectrum of Mastermind games of different levels of difficulty.\n");
        System.out.println("In this program, computer plays the role of code maker and" +
                            "user plays the role of code breaker.");
        System.out.print("Computer creates a code containing 4 or 5 colors, " +
                            "based on difficulty level, at specific positions,");
        System.out.println("but does not reveal the code to code breaker (user).\n");
        System.out.print("Code breaker tries to guess the pattern, in both order and color, ");
        System.out.println("within ‘x’ turns, where x is determined by the difficulty level.");
        System.out.println("The valid colour codes for each difficulty level are -");
        System.out.println("\tLevel : Rookie - V, I, B, G, Y and O for Violet, Indigo, Blue," +
                            " Green, Yellow and Orange respectively.");
        System.out.println("\tLevel : Pro - V, I, B, G, Y, O and R for Violet, Indigo, Blue," +
                            " Green, Yellow, Orange and Red respectively.");
        System.out.println("\tLevel : Expert - V, I, B, G, Y, O, R, P and C for Violet, Indigo,"
                          + "Blue, Green, Yellow, Orange, Red, Pink and Cyan respectively.\n");
        System.out.println("\tLevel : Genius - V, I, B, G, Y, O, R, P, C and M for Violet, " +
                            "Indigo, Blue, Green, Yellow, Orange, Red, Pink, Cyan and Maroon " +
                            "respectively.\n");
        System.out.println("Once code is typed, the code maker provides feedback by displaying "
                          + "'m' B and 'n' W,");
        System.out.println("where m and n can be a positive integer <= number of positions " +
                            "(for example 1 B, 2 W)."); 
        System.out.println("B is displayed for each color from the guess which is correct in " +
                            "both color and position."); 
        System.out.println("W indicates the existence of a correct color, but placed in the " +
                            "wrong position.\n");
        System.out.println("Once feedback is provided, another guess is made by the user;");
        System.out.println("guesses and feedback continue to alternate until either the code " +
                            "breaker guesses correctly,");
        System.out.println("or twelve (or ten) incorrect guesses are made, depending on the " +
                            "difficulty level.");
        System.out.println("Now that you know the rules, proceed to play this challenging, " +
                            "exciting and fascinating game.");
                            
        System.out.println("All the best!\n\nPress Enter key to continue...");
        
        br.read();
        Fill.load();
        
        System.out.print("\u000C");
    }
}