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

public class CheckTables {
    public static void main(String[] args) {
        try {
            Class.forName("oracle.jdbc.OracleDriver");
            Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521/sisvietnam", "sisvietnam", "sisvietnam");
            PreparedStatement stmt = conn.prepareStatement(
                "SELECT table_name FROM user_tables"
            );
            ResultSet rs = stmt.executeQuery();
            while (rs.next()) {
                System.out.println("Table: " + rs.getString("table_name"));
            }
            conn.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}