sql class

package me.davidev.punir.utils;

import java.io.File;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class SQL
{
  private Connection conn;
  private File file;
  private Statement stmt;

  private SQL(File f)
  {
    this.file = f;
    try
    {
      Class.forName("org.sqlite.JDBC");
      this.conn = DriverManager.getConnection("jdbc:sqlite:" + this.file);
      this.stmt = this.conn.createStatement();
    }
    catch (Exception e)
    {
      e.printStackTrace();
    }
  }

  private SQL(String urlconn)
  {
    try
    {
      this.conn = DriverManager.getConnection(urlconn);
      this.stmt = this.conn.createStatement();
    }
    catch (Exception e)
    {
      e.printStackTrace();
    }
  }

  public static SQL load(File f)
  {
    return new SQL(f);
  }

  public static SQL load(String f)
  {
    return new SQL(new File(f));
  }

  public static SQL load(String host, String database, String user, String pass)
  {
    return new SQL("jdbc:mysql://" + host + "/" + database + "?user=" + user + "&password=" + pass);
  }

  public void update(String q)
  {
    try
    {
      this.stmt.executeUpdate(q);
    }
    catch (Exception e)
    {
      e.printStackTrace();
    }
  }

  public ResultSet query(String q)
  {
    try
    {
      return this.stmt.executeQuery(q);
    }
    catch (Exception localException) {}
    return null;
  }

  public void close()
  {
    try
    {
      this.stmt.close();
      this.conn.close();
    }
    catch (Exception localException) {}
  }

  public boolean isConnected()
  {
    try
    {
      return (this.stmt != null) && (this.conn != null) && (!this.stmt.isClosed()) && (!this.conn.isClosed());
    }
    catch (Exception localException) {}
    return false;
  }

  public Connection getConnection()
  {
    return this.conn;
  }
}