Java Advanced Exam - 22 Feb 2020 problem 03. Guild 88/100 - Софтуерен университет

Java Advanced Exam - 22 Feb 2020 problem 03. Guild 88/100

Здравейте,

От изпита Java Advanced Exam - 22 Feb 2020 на задача 03.Guild последният 9-ти тест гърми. Предполагам, че методът

kickPlayersByClass(String clazz) е причината теста да гърми, но не мога да намеря грешката.

Player class-a -> https://pastebin.com/V2EdbHRb

Guild class-a -> https://pastebin.com/RE0Xw4mX

Main class-a -> https://pastebin.com/XbKtEQ6s

Линк към Judge -> https://judge.softuni.org/Contests/Practice/Index/2036#2

Условието на задачата:

Your task is to create a repository which stores players by creating the classes described below.

Player

First, write a Java class Player with the following fields:

name: String
clazz: String
rank: String – "Trial" by default
description: String – "n/a" by default

The class constructor should receive name and clazz. You need to create the appropriate getters and setters. Override the toString() method in the following format:

"Player {name}: {clazz}

Rank: {rank}

Description: {description}"

Guild

Next, write a Java class Guild that has a roster (a collection which stores Player entities). All entities inside the repository have the same fields. Also, the Guild class should have those fields:

name: String
capacity: int

The class constructor should receive name and capacity, also it should initialize the roster with a new instance of the collection. Implement the following features:

Method addPlayer(Player player) - adds an entity to the roster if there is room for it
Method removePlayer(String name) - removes a player by given name, if such exists, and returns boolean
Method promotePlayer(String name) - promote (set his rank to "Member") the first player with the given name. If the player is already a "Member", do nothing.
Method demotePlayer(String name)- demote (set his rank to "Trial") the first player with the given name. If the player is already a "Trial", do nothing.
Method kickPlayersByClass(String clazz) - removes all the players by the given class and returns all removed players from that class as an array
Method count() - returns the number of players
Method report() - returns a String in the following format:
- "Players in the guild: {guildName}:
  {Player1}
  {Player2}
  (…)"

Constraints

The names of the players will be always unique.
You will always have a player added before receiving methods manipulating the Guild's players.

Examples

This is an example how the Guild class is intended to be used.

Sample code usage

package guild;

public class Main {
    public static void main(String[] args) {
        //Initialize the repository (guild)
        Guild guild = new Guild("Weekend Raiders", 20);
        //Initialize entity
        Player player = new Player("Mark", "Rogue");
        //Print player
        System.out.println(player);

        //Player Mark: Rogue
        //Rank: Trial
        //Description: n/a

        //Add player
        guild.addPlayer(player);
        System.out.println(guild.count()); //1
        System.out.println(guild.removePlayer("Gosho")); //false

        Player firstPlayer = new Player("Pep", "Warrior");
        Player secondPlayer = new Player("Lizzy", "Priest");
        Player thirdPlayer = new Player("Mike", "Rogue");
        Player fourthPlayer = new Player("Marlin", "Mage");

        //Add description to player
        secondPlayer.setDescription("Best healer EU");

        //Add players
        guild.addPlayer(firstPlayer);
        guild.addPlayer(secondPlayer);
        guild.addPlayer(thirdPlayer);
        guild.addPlayer(fourthPlayer);

        //Promote player
        guild.promotePlayer("Lizzy");

        //Remove Player
        System.out.println(guild.removePlayer("Pep")); //true

        Player[] kickedPlayers = guild.kickPlayersByClass("Rogue");
        for (Player kickedPlayer : kickedPlayers) {
            System.out.print(kickedPlayer.getName() + " ");
        }
        //Mark Mike

        System.out.println(guild.report());
        //Players in the guild: Weekend Raiders:
        //Player Lizzy: Priest
        //Rank: Member
        //Description: Best healer EU
        //Player Marlin: Mage
        //Rank: Trial
        //Description: n/a
    }
}

public String report() { StringBuilder output = new StringBuilder(); output.append(String.format("Players in the guild: %s:%n", this.name)); for (int i = 0; i < this.roster.size(); i++) { output.append(this.roster.get(i).toString()) .append(System.lineSeparator()); } return output.toString().trim(); }

Във форума е въведено ограничение, което позволява на потребителите единствено да разглеждат публикуваните въпроси.