leaderboard.java

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class leaderboard {
  static ArrayList<Object> scores = new ArrayList<>();
  private String username, displayArray, password;
  private int numCorrect, numAnswered, playerNum;
  private double perc;

  public leaderboard() {
    username = "";
    numCorrect = 0;
    numAnswered = 0;
    //password = "";
    perc = 0.0;
  }

  public leaderboard(String user, int numC, int numA) {
    username = user;
    numCorrect = numC;
    numAnswered = numA;
    //password = pass;
  }

  public static void addLeaderboard(String user, int numC, int numA) {
    scores.add(user);
    scores.add(numC);
    scores.add(numA);
  }

  public static void setLeaderboard(String user, int numC, int numA, int i){
    scores.set((i*3),user);
    scores.set((i*3)+1,numC);
    scores.set((i*3)+2,numA);
  }

  public static ArrayList<Object> getScores() {
    return scores;
  }

  public int returnNumUsers() {
    return scores.size() / 4;
  }

  public String displayUsername(int n) {
    return scores.get(n * 3).toString();
  }

  public int displayNumCor(int n) {
    return (int) scores.get((n * 3) + 1);
  }

  public int displayNumAns(int n) {
    return (int) scores.get((n * 3) + 2);
  }

  public int getScore(int n) {
    int numCorrect = (int) scores.get((n * 4) + 1);
    int numAnswered = (int) scores.get((n * 4) + 2);
    perc = ((double) numCorrect / (double) numAnswered) * 100.0;
    return (int) perc;
  } //Score is percent

  public void viewLeaderboard() {
    for (int i = 0; i < this.returnNumUsers(); i++) {
      playerNum = i + 1;
      System.out.println("Rank " + playerNum + ":\n\tUsername: " + this.displayUsername(i));
      System.out.println("\tCorrect Answers: " + this.displayNumCor(i));
      System.out.println("\tTotal Questions: " + this.displayNumAns(i));
      System.out.println("\tScore:           " + this.getScore(i));
      if (displayUsername(i) == null) {
        break;
      }
    }
  }

  public void sortBoard() {
    List<Integer> sortScores = new ArrayList<>();
    List<String> test = new ArrayList<>();
    test.clear();
    for (int k = 0; k < this.returnNumUsers(); k++) {
      test.add(this.displayUsername(k));
      test.add(Integer.toString(this.displayNumCor(k)));
      test.add(Integer.toString(this.displayNumAns(k)));
    }
    for (int i = 0; i < this.returnNumUsers(); i++) {
      sortScores.add(this.getScore(i));
    }
    Collections.sort(sortScores, Collections.reverseOrder());
    scores.clear();
    for (int x = 0; x < (test.size() / 3); x++) {
      for (int k = 0; k < (test.size() / 3); k++) {
        int perc = (int) (((Double.parseDouble(test.get((k * 4) + 1))) / (Double.parseDouble(test.get((k * 4) + 2)))) * 100);
        if (sortScores.get(x) == perc) {
          addLeaderboard((test.get(k * 3)), (Integer.parseInt(test.get((k * 3) + 1))), (Integer.parseInt(test.get((k * 3) + 2))));//
        }
      }
    }
  }

  public void searchUser(String username) {
    for (int i = 0; i < returnNumUsers(); i++) {
      if (username.equals(displayUsername(i))) {
        playerNum = i + 1;
        System.out.println("Rank " + playerNum + ":\n\tUsername: " + this.displayUsername(i));
        System.out.println("\tCorrect Answers: " + this.displayNumCor(i));
        System.out.println("\tTotal Questions: " + this.displayNumAns(i));
        System.out.println("\tScore:           " + this.getScore(i));
      } else {
        System.out.println("There is noone with the username" + username + "Please enter a new username");
        break;
      }
    }
  }
}