View difference between Paste ID: 3iQxJbiN and NarhwmfU

 package ContohLaporan;
 
 import java.sql.Connection;
 import java.sql.DriverManager;
 import java.sql.SQLException;
 import javax.swing.JOptionPane;
 
 public class DBConnection {
 
     private Connection conn = null;
     static String DB_URL, DB_USER, DB_PASS, dbname, host, port;
     boolean koneksi = false, db = false;
 
     public DBConnection() {
         host = "localhost";
         port = "3306";
         dbname = "db_supermarket_siti3";
         DB_USER = "root";
         DB_PASS = "";
         DB_URL = "jdbc:mysql://" + host + ":" + port + "/" + dbname;
         if (conn == null) {
             try {
                 Class.forName("com.mysql.jdbc.Driver");
                 conn = DriverManager.getConnection(DB_URL, DB_USER, DB_PASS);
                 koneksi = true;
             } catch (SQLException ex) {
                 JOptionPane.showMessageDialog(null,
                         ex.getErrorCode() + ": " + ex.getMessage());
                 koneksi = false;
             } catch (ClassNotFoundException cne) {
                 JOptionPane.showMessageDialog(null,
                         "COM.MYSQL.JDBC.Driver tidak ditemukan\n" + cne.getMessage());
                 koneksi = false;
             }
         }
     }
 }