Tp and Bc errors.

package me.nathaniel.firstplugin;

import java.util.logging.Logger;



import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.GameMode;
import org.bukkit.Location;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.PluginDescriptionFile;
import org.bukkit.plugin.java.JavaPlugin;


public class Firstplugin extends JavaPlugin{
 public final Logger logger = Logger.getLogger("Minecraft");
 public static Firstplugin plugin;

 @Override
 public void onDisable() {
  PluginDescriptionFile pdfFile = this.getDescription();
  this.logger.info(pdfFile.getName() + " Disabled!");
 }

 @Override
 public void onEnable () {
  PluginDescriptionFile pdfFile = this.getDescription();
  this.logger.info(pdfFile.getName() + " Version " + pdfFile.getVersion() + " Enabled!");
 }

 public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args){
  Player player = (Player) sender;
  if (commandLabel.equalsIgnoreCase("Ping")) {
      player.sendMessage("Pong!");
  }

  if (commandLabel.equalsIgnoreCase("bc") || commandLabel.equalsIgnoreCase("Broadcast")); {
      StringBuilder str = new StringBuilder();
      for(int i = 0; i < args.length; i++) {
          str.append(args[i] + " ");
          if (i != 0){
      Bukkit.broadcastMessage(ChatColor.GRAY + "[" + ChatColor.AQUA + "BroadCast" + ChatColor.GRAY + "] " + str.toString());
          }else {
          }
      }
  }
  if (commandLabel.equalsIgnoreCase("Seen")) {
      System.currentTimeMillis();player.getLastPlayed();
  }
  if (commandLabel.equalsIgnoreCase("gms")) {
      player.setGameMode(GameMode.SURVIVAL);
      player.sendMessage("Your gamemode has been updated!");
  }
  if (commandLabel.equalsIgnoreCase("gmc")) {
      player.setGameMode(GameMode.CREATIVE);
      player.sendMessage("Your gamemode has been updated!");
  }
  if (commandLabel.equalsIgnoreCase("gma")) {
      player.setGameMode(GameMode.ADVENTURE);
      player.sendMessage("Your gamemode has been updated!");
  }
  if (commandLabel.equalsIgnoreCase("Dev")) {
   player.sendMessage(ChatColor.GRAY + "===================================================== " + ChatColor.YELLOW + " Coded by " + ChatColor.AQUA + "nathaniel_14"+ ChatColor.YELLOW +".All rights reserved " + ChatColor.GRAY +"          ====================================================");
  }
  if (commandLabel.equalsIgnoreCase("Heal")) {
      if (args.length == 0) {
          //heal = 0 args /heal nathaniel_14 = 2 args
   player.setHealth(20);
   player.sendMessage(ChatColor.GREEN + "Healed!");
   }else if (args.length == 1) {
       if (player.getServer().getPlayer(args[0])!= null){
           Player targetPlayer = player.getServer().getPlayer(args[0]);
           targetPlayer.setHealth(20);
           player.sendMessage(targetPlayer.getName() + ChatColor.GREEN + " Has been Healed!");
           targetPlayer.sendMessage(ChatColor.GREEN + "You have been healed!");
       }else{
           player.sendMessage(ChatColor.RED + "Player not online!");
       }
   }
  }
  if (commandLabel.equalsIgnoreCase("Feed")) {
      if (args.length == 0) {
          //feed = 0 args /feed nathaniel_14 = 2 args
   player.setFoodLevel(20);
   player.sendMessage(ChatColor.GREEN + "Fed!");
   }else if (args.length == 1) {
       if (player.getServer().getPlayer(args[0])!= null){
           Player targetPlayer = player.getServer().getPlayer(args[0]);
           targetPlayer.setFoodLevel(20);
           player.sendMessage(targetPlayer.getName() + ChatColor.GREEN + " Has been Fed!");
           targetPlayer.sendMessage(ChatColor.GREEN + "You have been feed!");
       }else{
           player.sendMessage(ChatColor.RED + "Player not online!");
       }
   }
  }
  if (commandLabel.equalsIgnoreCase("tp")) {
      if(args.length == 1) {
          Player targetPlayer = player.getServer().getPlayer(args[0]);
          Location targetPlayerLocation = targetPlayer.getLocation();
          player.teleport(targetPlayerLocation);
  }else if(args.length == 2) {
          Player targetPlayer = player.getServer().getPlayer(args[0]);
          Player targetPlayer1 = player.getServer().getPlayer(args[1]);
          Location targetPlayer1Location = targetPlayer1.getLocation();
          targetPlayer.teleport(targetPlayer1Location);
 }else{ player.sendMessage("Incorrect Arguments");
  }
}
return false;
}
}