Question

Modify the method so that instead of manually making teams, it reads it from a text file called TeamsList.txt. Everything must be done in this method.

public void make_test_teams() {
List<Team> teams = new ArrayList<Team>();

Player burns = new Player("George Burns", "George");
Player allen = new Player("Gracie Allen", "Gracie");
List<Player> ba = new ArrayList<Player>();
ba.add(burns); ba.add(allen);
Team burns_and_allen = new Team("Burns and Allen", ba);
teams.add(burns_and_allen);

Player abbott = new Player("William Abbott", "Bud");
Player costello = new Player("Louis Cristillo", "Lou");
List<Player> ac = new ArrayList<Player>();
ac.add(abbott); ac.add(costello);
Team abbott_and_costello = new Team("Abbott and Costello", ac);
teams.add(abbott_and_costello);

Player chico = new Player("Leonard Marx", "Chico");
Player groucho = new Player("Julius Marx", "Groucho");
Player harpo = new Player("Adolph Marx", "Harpo");
List<Player> mb = new ArrayList<Player>();
mb.add(chico); mb.add(groucho); mb.add(harpo);
Team marx_brothers = new Team("Marx Brothers", mb);
teams.add(marx_brothers);

store_teams(teams);
   }

the text file looks like

team: "Burns and Allen"
player: fullname: George Burns, nickname: George
player: fullname: Gracie Allen, nickname: Gracie

team: "Abbott and Costello"
player: fullname: William Abbott, nickname: Bud
player: fullname: Louis Cristillo, nickname: Lou

team: "Marx Brothers"
player: fullname: Leonard Marx, nickname: Chico
player: fullname: Julius Marx, nickname: Groucho
player: fullname: Adolph Marx, nickname: Harpo

Answer 1

Method implementation:

public void make_test_teams() throws Exception {
//replace it with path
FileInputStream fstream = new FileInputStream("C:\Users\janikiramreddy.a\Desktop\teams.txt");
BufferedReader br = new BufferedReader(new InputStreamReader(fstream));
String strLine;
List<Team> teams = new ArrayList<Team>();
List<Player> ba = new ArrayList<Player>();
String teamName="null";
while ((strLine = br.readLine()) != null) {
if(strLine.startsWith("team")) {
if(teamName.equals("null")) {
String te[]=strLine.split(":");
teamName=te[1];
}
else {
Team t=new Team(teamName,ba);
teams.add(t);
String te[]=strLine.split(":");
teamName=te[1];
}
}
else if(strLine.startsWith("player")){
String[] pe=strLine.split(":");
int i=0;
for(String s:pe) {
i++;
}
String[] players=pe[2].split(",");
String player=players[1];
String nick=pe[3];
Player pa=new Player(player,nick);
ba.add(pa);
}
  
}
Team t=new Team(teamName,ba);
teams.add(t);

store_teams(teams);

}

code to test the method:

we have MakeTeams class to test method

and Teams.java and player.java to satisfy requirements

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
public class MakeTeams {
public static void main(String[] args) throws Exception {
make_test_teams();
}
public static void make_test_teams() throws Exception {
//replace it with path
FileInputStream fstream = new FileInputStream("C:\Users\janikiramreddy.a\Desktop\teams.txt");
BufferedReader br = new BufferedReader(new InputStreamReader(fstream));
String strLine;
List<Team> teams = new ArrayList<Team>();
List<Player> ba = new ArrayList<Player>();
String teamName="null";
while ((strLine = br.readLine()) != null) {
if(strLine.startsWith("team")) {
if(teamName.equals("null")) {
String te[]=strLine.split(":");
teamName=te[1];
}
else {
Team t=new Team(teamName,ba);
teams.add(t);
String te[]=strLine.split(":");
teamName=te[1];
}
}
else if(strLine.startsWith("player")){
String[] pe=strLine.split(":");
int i=0;
for(String s:pe) {
i++;
}
String[] players=pe[2].split(",");
String player=players[1];
String nick=pe[3];
Player pa=new Player(player,nick);
ba.add(pa);
}
  
}
Team t=new Team(teamName,ba);
teams.add(t);
System.out.println("teams");
for(Team t1:teams) {
System.out.println(t1.getTeamName());
}
}
}

Team.java:

import java.util.List;

public class Team {

   private String teamName;
   public String getTeamName() {
       return teamName;
   }

   public void setTeamName(String teamName) {
       this.teamName = teamName;
   }

   private List<Player> ba;

   public Team(String teamName, List<Player> ba) {
       // TODO Auto-generated constructor stub
   this.teamName=teamName;
   this.ba=ba;
   }
}

Player.java:

public class Player {
private String nick;
private String player;
public Player(String player, String nick) {
// TODO Auto-generated constructor stub
this.player=player;
this.nick=nick;
}

}

output: