Solved MySQL syntax error but why

Hello,

I'm trying to check if a player is placed inside the database, but it gives me an syntax error and I can't figure out why it gives this error. If I check it online with w3schools it works perfectly, but when I tried it in Java it gives me the error:

Code:

[14:44:37 INFO]: com.mysql.jdbc.JDBC4PreparedStatement@31a5fc57: SELECT * FROM 'playerdata' WHERE UUIdentifier='a89dab9a
-503e-4be0-a7c9-9380d2638f5a';
[14:44:37 WARN]: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check
the manual that corresponds to your MySQL server version for the right syntax to use near ''playerdata' WHERE UUIdentifi
er='a89dab9a-503e-4be0-a7c9-9380d2638f5a'' at line 1
[14:44:37 WARN]:        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
[14:44:37 WARN]:        at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
[14:44:37 WARN]:        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
[14:44:37 WARN]:        at java.lang.reflect.Constructor.newInstance(Unknown Source)
[14:44:37 WARN]:        at com.mysql.jdbc.Util.handleNewInstance(Util.java:407)
[14:44:37 WARN]:        at com.mysql.jdbc.Util.getInstance(Util.java:382)
[14:44:37 WARN]:        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1052)
[14:44:37 WARN]:        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3593)
[14:44:37 WARN]:        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3525)
[14:44:37 WARN]:        at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1986)
[14:44:37 WARN]:        at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2140)
[14:44:37 WARN]:        at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2626)
[14:44:37 WARN]:        at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2111)
[14:44:37 WARN]:        at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2273)
[14:44:37 WARN]:        at me.gonnakillyou2.mysql.MySQL.tableContainsPlayer(MySQL.java:88)
[14:44:37 WARN]:        at me.gonnakillyou2.listeners.PlayerDataListener.onLogin(PlayerDataListener.java:37)
[14:44:37 WARN]:        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[14:44:37 WARN]:        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
[14:44:37 WARN]:        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
[14:44:37 WARN]:        at java.lang.reflect.Method.invoke(Unknown Source)
[14:44:37 WARN]:        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306)
[14:44:37 WARN]:        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
[14:44:37 WARN]:        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502)
[14:44:37 WARN]:        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487)
[14:44:37 WARN]:        at net.minecraft.server.v1_8_R3.PlayerList.attemptLogin(PlayerList.java:456)
[14:44:37 WARN]:        at net.minecraft.server.v1_8_R3.LoginListener.b(LoginListener.java:118)
[14:44:37 WARN]:        at net.minecraft.server.v1_8_R3.LoginListener.c(LoginListener.java:54)
[14:44:37 WARN]:        at net.minecraft.server.v1_8_R3.NetworkManager.a(NetworkManager.java:231)
[14:44:37 WARN]:        at net.minecraft.server.v1_8_R3.ServerConnection.c(ServerConnection.java:148)
[14:44:37 WARN]:        at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:814)
[14:44:37 WARN]:        at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374)
[14:44:37 WARN]:        at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654)
[14:44:37 WARN]:        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557)
[14:44:37 WARN]:        at java.lang.Thread.run(Unknown Source)

This is my class I used:

Code:

package me.gonnakillyou2.mysql;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

import org.bukkit.entity.Player;

public class MySQL {

    private Connection connection;

    private String IP, port, dbName, username, password;

    public MySQL(String IP, String port, String dbName, String username, String pass) {

        this.IP = IP;
        this.port = port;
        this.dbName = dbName;
        this.username = username;
        this.password = pass;
    }

    public synchronized Connection openConnection() {
        try {
            if (checkConnection()) {
                return connection;
            }

            String connectionURL = "jdbc:mysql://" + getIP() + ":" + getPort();

            if (getDbName() != null) {
                connectionURL = connectionURL + "/" + getDbName();
            }

            Class.forName("com.mysql.jdbc.Driver");
            connection = DriverManager.getConnection(connectionURL, getUsername(), getPassword());

            return connection;
        } catch (SQLException | ClassNotFoundException e) {
            e.printStackTrace();
            return null;
        }
    }

    public boolean closeConnection() {
        try {
            if (connection == null)
                return false;

            if (connection.isClosed())
                return true;

            connection.close();
            return true;
        } catch (SQLException e) {
            e.printStackTrace();
            return false;
        }
    }

    public boolean checkConnection() {
        try {
            return connection != null && !connection.isClosed();
        } catch (SQLException e) {
            return false;
        }
    }

    public Connection getConnection() {
        return connection;
    }

    public synchronized boolean tableContainsPlayer(Player p, String tableName) {
        openConnection();

        try {
            PreparedStatement statement = (PreparedStatement) getConnection()
                    .prepareStatement("SELECT * FROM ? WHERE UUIdentifier=?;");

            statement.setString(1, tableName);
            statement.setString(2, p.getUniqueId().toString());

            System.out.println(statement);
        
            ResultSet result = statement.executeQuery();
            boolean exists = result.next();

            statement.close();
            result.close();

            return exists;

        } catch (SQLException e) {
            e.printStackTrace();
            return false;
        } finally {
            closeConnection();
        }
    }

    public synchronized void createTable(String tableName) {
        openConnection();

        try {
            PreparedStatement statement = (PreparedStatement) getConnection()
                    .prepareStatement("CREATE TABLE IF NOT EXISTS " + tableName);

            statement.executeUpdate();
        } catch (SQLException e) {
            e.printStackTrace();
        } finally {
            closeConnection();
        }
    }

    /**
     * @return the iP
     */
    public String getIP() {
        return IP;
    }

    /**
     * @return the port
     */
    public String getPort() {
        return port;
    }

    /**
     * @return the dbName
     */
    public String getDbName() {
        return dbName;
    }

    /**
     * @return the username
     */
    public String getUsername() {
        return username;
    }

    /**
     * @return the password
     */
    public String getPassword() {
        return password;
    }
}

The error I get is:
"You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''playerdata' WHERE UUIdentifier='a89dab9a-503e-4be0-a7c9-9380d2638f5a'' at line 1"

But I can't findout why it gives me the error when I execute the function tableContainsPlayer. The player is not null and the table is exists in the database.

Can someone help me with this?

[EDIT] Solved it, I removed the questionmark where the tablename should come and replaced it with a variable and added 2 "`" symbols at the begin and end by the table name, not it works correctly