JailWand

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.util.HashMap;


public class JailWand extends PluginListener{
    int i = 1;
    File coords = new File("plugins/config/Jail/FileC.txt");
    File names = new File("plugins/config/Jail/Jailnames.txt");
    String directory = "plugins/config/Jail/Jailes/";
    PropertiesFile props = new PropertiesFile("plugins/config/Jail/JailProps.properties");
    HashMap<String,String> alist = new HashMap<String,String>();

    public boolean onCommand(Player player,String[] split){
        if (split[0].equalsIgnoreCase("/jailwand")&&player.canUseCommand("/jailadmin")){
            if (split.length <2|| split.length >2){
                player.sendMessage("§cThe correct usage is '/jailwand <jailname>'");
                return true;
            }else{
            if (isInList(split[1])){
                alist.put(player.getName(), split[1]);
                player.sendMessage("§2You can now select jails by rightklicking with your jailwand.");
                return true;
            }else{
                player.sendMessage("§cThis jail doesnt exist.");
                return true;
            }
            }
        }else{
            if(split[0].equalsIgnoreCase("/stopwand")&&player.canUseCommand("/jailadmin")){
                alist.remove(player.getName());
                player.sendMessage("§2You stopped selecting cells.");
                return true;
            }
        }
        return false;
    }
    Writer writer;
    public boolean onBlockRightClick(Player player,Block block,Item iih){
        if (alist.containsKey(player.getName())){
            if (iih.getItemId() == props.getInt("Jail-Wand-Item")){
                String co = Math.floor(block.getX())+","+Math.floor(block.getY())+","+Math.floor(block.getZ())+","+player.getWorld();
                if (!isInListco(co)){
                    try {
                        writer = new FileWriter("plugins/config/Jail/FileC.txt", true);
                        writer.write(co+"\n");
                        writer.close();
                    } catch (IOException e) {
                    }
                    PropertiesFile jail = new PropertiesFile(directory+alist.get(player.getName())+".properties");
                    jail.setString(i+"",co);
                    player.sendMessage("§2Cell "+i+" has been set.");
                    i++;
                    return false;
                }else{
                    player.sendMessage("§cThese coördinates are already used by another jail or cell.");
                    return true;
                }
            }
        }
        return false;
    }
     public boolean isInList(String s) {
            try {
              BufferedReader in = new BufferedReader(new FileReader(names));
              String line = in.readLine();
              while (line != null) {
                if (line.equalsIgnoreCase(s)) {
                  in.close();
                  return true;
                }
                line = in.readLine();
              }
              in.close();
            } catch (IOException localIOException) {
            }
            return false; }

     public boolean isInListco(String s) {
            try {
              BufferedReader in = new BufferedReader(new FileReader(coords));
              String line = in.readLine();
              while (line != null) {
                if (line.equalsIgnoreCase(s)) {
                  in.close();
                  return true;
                }
                line = in.readLine();
              }
              in.close();
            } catch (IOException localIOException) {
            }
            return false; }
}