// A program to read in the number of votes each of two candidates received
//   in a number of precincts, then compute the winner of the election.
//
// This version of the program has added some structure by defining methods,
//   but still has a lot of redundancy. In addition, the program uses chaining,
//   which is considered poor style. Note how each method simply calls the next,
//   with control never returning to main until the end of the program.
import java.util.*;

public class ElectionChained {
   public static final int NUM_VOTERS = 1013;    // total number of eligible voters

   public static void main(String[] args) {
      Scanner console = new Scanner(System.in);
   
      intro();
      
      pizzaParty(console);
   }
   
   // Prints out an introduction to the program.
   public static void intro() {
      System.out.println("This program reads in data for two candidates");
      System.out.println("and computes the result of an election");
      System.out.println();   
   }
   
   // Reads in and computes the pizza party candidate's total votes.
   //
   // Scanner console - the Scanner to use for input
   public static void pizzaParty(Scanner console) {
      System.out.println("Enter Pizza Party candidate's totals:");
      System.out.print("How many precincts? ");
      int numPrecincts = console.nextInt();
      int pizza = 0;
      for (int i = 1; i <= numPrecincts; i++) {
         System.out.print("   Votes in next precinct? ");
         int votes = console.nextInt();
         pizza += votes;
      }
      System.out.println();
      pajamaParty(console, pizza);   
   }
   
   // Reads in and computes the pajama party candidate's total votes.
   //
   // Scanner console - the Scanner to use for input   
   // int pizza - the number of votes the pizza party candidate received
   public static void pajamaParty(Scanner console, int pizza) {
      System.out.println("Enter Pajama Party candidate's totals:");
      System.out.print("How many precincts? ");
      int numPrecincts = console.nextInt();
      int pajama = 0;
      for (int i = 1; i <= numPrecincts; i++) {
         System.out.print("   Votes in next precinct? ");
         int votes = console.nextInt();
         pajama += votes;
      }
      System.out.println();
      reportResults(console, pizza, pajama);   
   }
   
   // Computes and prints the final results of the election.
   //
   // Scanner console - the Scanner to use for input
   // int firstVotes - the number of votes the first candidate received
   // int secondVotes - the number of votes the second candidate received   
   public static void reportResults(Scanner console, int firstVotes, int secondVotes) {
      int totalVotes = firstVotes + secondVotes;
      double pct1 = 100.0 * firstVotes / totalVotes;
      double pct2 = 100.0 * secondVotes / totalVotes;

      if (pct1 > pct2) {
         System.out.println("Pizza Party received " + round2(pct1) + "% of the votes cast");
         System.out.println("Pajama Party received " + round2(pct2) + "% of the votes cast");
         System.out.println("Pizza Party wins!");
         double turnoutPct = 100.0 * totalVotes / NUM_VOTERS;
         System.out.println("Turnout was " + round2(turnoutPct) + "%");   
      } else if (pct2 > pct1) {
         System.out.println("Pizza Party received " + round2(pct1) + "% of the votes cast");
         System.out.println("Pajama Party received " + round2(pct2) + "% of the votes cast");
         System.out.println("Pajama Party wins!");
         double turnoutPct = 100.0 * totalVotes / NUM_VOTERS;
         System.out.println("Turnout was " + round2(turnoutPct) + "%");   
      } else {
         System.out.println("Pizza Party received " + round2(pct1) + "% of the votes cast");
         System.out.println("Pajama Party received " + round2(pct2) + "% of the votes cast");
         System.out.println("It's a tie!");
         double turnoutPct = 100.0 * totalVotes / NUM_VOTERS;
         System.out.println("Turnout was " + round2(turnoutPct) + "%");   
      }      
   }

   // Returns the given number rounded to two decimal places.
   //
   // double num - the number to round
   public static double round2(double num) {
      return Math.round(num * 100.0) / 100.0;
   }
}