I have to shorten the method. Terminal.readLine reads the Line you put into the Terminal. I have tried to split up the method, but there seems to be problems with the while-loop in the main if I do that. How could I shorten this?

public class HockeySystem {          private static boolean var = true;         private Team[] teams = new Team[4];         private HockeyMatch[] hockeyMatches = new HockeyMatch[4];         private String[] parts = Terminal.readLine().split(" ");         private Standings[] standings = new Standings[4];          /**          *          * @param args for command-line arguments          */         public static void main(String[] args) {             HockeySystem m = new HockeySystem();              while (var == true) {                  m.method();              }         }          /**          * This method contains multiple IF-Operations. Depending on the Input in          * the Terminal, different operations will be executed.          *          * "add-team" Input : "team" will be added to the Array "teams" if "team"          * passes multiple tests, which if it doesn't will lead to Error messages.          * In case "teams" is full, the Array will be doubled in size.          *          * "list-team" Input : every "team" in the Array "teams" will be printed ,          * each one in a new row.          *          * "add-ice-hockey-match" Input : "hockeyMatch" will be added to the Array          * "hockeyMatches" if "hockeyMatch" matches the requirements. If it doesn't          * match those , an Error message will be printed. In case "hockeyMatch" is          * full, the Array will be doubled in size.          *          * "quit" Input : The program will be          *          */         public void method() {             if (parts[0].startsWith("add-team")) {                 String[] parts2 = parts[1].split(";"); // parts2[0] will be the "ID" & parts 2[1] will be the "Teamname"                 boolean hasBeenAdded = false;                 boolean hasNameError = false;                 boolean hasSameId = false;                 Team team = new Team(Integer.valueOf(parts2[0]), parts2[1]);                 for (int i = 0; i < teams.length; i++) {                     if (teams[i] != null) {                         if (teams[i].getTeamName().equals(team.getTeamName())) {                             hasNameError = true;                         }                         if (teams[i].getId() == team.getId() || team.getId() == 0) {                             hasSameId = true;                         }                     }                     if (teams[i] == null) {                         if (team.getId() == 0) {                             hasSameId = true;                         }                         if (hasNameError == false && hasSameId == false) {                             teams[i] = team;                             hasBeenAdded = true;                         }                         break;                     }                 }                 if (hasBeenAdded == false && hasNameError == false && hasSameId == false) {                     Team[] moreTeams = new Team[teams.length * 2];                     moreTeams[teams.length] = team;                     for (int i = 0; i < teams.length; i++) {                         moreTeams[i] = teams[i];                     }                     teams = moreTeams;                     hasBeenAdded = true;                 }                 if (hasNameError) {                     Terminal.printError("A team with that Name already exists.");                 } else if (hasSameId) {                     Terminal.printError("A Team with that ID already exists or the ID equals 0.");                 } else {                     Terminal.printLine("OK");                 }             }             if (parts[0].equals("list-team")) {                 for (int i = 0; i < teams.length; i++) {                     if (teams[i] != null) {                         Terminal.printLine(teams[i].getId() + " " + teams[i].getTeamName());                     }                 }             }             if (parts[0].equals("add-ice-hockey-match")) {                 String[] parts2 = parts[1].split(";");                 if (Integer.valueOf(parts2[4]) >= 60 && Integer.valueOf(parts2[4]) <= 120                         && Integer.valueOf(parts2[1]) != Integer.valueOf(parts2[3])) {                     HockeyMatch hockeyMatch;                     hockeyMatch = new HockeyMatch(                             Integer.valueOf(parts2[0]),                             Integer.valueOf(parts2[1]),                             Integer.valueOf(parts2[2]),                             Integer.valueOf(parts2[3]),                             Integer.valueOf(parts2[4]));                     boolean hasBeenAdded = false;                     for (int i = 0; i < hockeyMatches.length; i++) {                         if (hockeyMatches[i] != null) {                             hockeyMatches[i] = hockeyMatch;                             hasBeenAdded = true;                         }                         break;                     }                     if (hasBeenAdded == false) {                         HockeyMatch[] moreHockeyMatches = new HockeyMatch[hockeyMatches.length * 2];                         moreHockeyMatches[hockeyMatches.length] = hockeyMatch;                         for (int i = 0; i < hockeyMatches.length; i++) {                             moreHockeyMatches[i] = hockeyMatches[i];                         }                         hockeyMatches = moreHockeyMatches;                         hasBeenAdded = true;                     }                     if (hasBeenAdded) {                         Terminal.printLine("OK");                     }                 } else if (Integer.valueOf(parts2[4]) <= 60) {                     Terminal.printError("The minimum playtime of 60minutes has not been reached.");                 } else if (Integer.valueOf(parts2[4]) >= 120) {                     Terminal.printError("The maximum playtime of 120minutes has been exceeded.");                 } else if (Integer.valueOf(parts2[1]) == Integer.valueOf(parts2[3])) {                     Terminal.printError("Tie not allowed.");                 }             }             if (parts[0].equals("print-del-standings")) {             }         }           public void quit(){             var = false;         }     }