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/// \file exampleP01.cc
/// \brief Main program of the persistency/P01 example

#include "ExP01DetectorConstruction.hh"
#include "ExP01EventAction.hh"
#include "ExP01PrimaryGeneratorAction.hh"
#include "ExP01RunAction.hh"
#include "ExP01SteppingAction.hh"
#include "ExP01SteppingVerbose.hh"
#include "FTFP_BERT.hh"

#include "G4RunManagerFactory.hh"
#include "G4Types.hh"
#include "G4UIExecutive.hh"
#include "G4UImanager.hh"
#include "G4VisExecutive.hh"

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int main(int argc, char** argv)
{
  // Instantiate G4UIExecutive if interactive mode
  G4UIExecutive* ui = nullptr;
  if (argc == 1) {
    ui = new G4UIExecutive(argc, argv);
  }

  // my Verbose output class
  G4VSteppingVerbose::SetInstance(new ExP01SteppingVerbose);

  // Run manager
  auto* runManager = G4RunManagerFactory::CreateRunManager(G4RunManagerType::SerialOnly);

  // UserInitialization classes (mandatory)
  ExP01DetectorConstruction* ExP01detector = new ExP01DetectorConstruction;
  runManager->SetUserInitialization(ExP01detector);

  G4VModularPhysicsList* physicsList = new FTFP_BERT;
  runManager->SetUserInitialization(physicsList);

  // Visualization
  G4VisManager* visManager = new G4VisExecutive;
  visManager->Initialize();

  // UserAction classes
  runManager->SetUserAction(new ExP01PrimaryGeneratorAction(ExP01detector));
  runManager->SetUserAction(new ExP01RunAction);
  runManager->SetUserAction(new ExP01EventAction);
  runManager->SetUserAction(new ExP01SteppingAction);

  // Initialize G4 kernel
  runManager->Initialize();

  // get the pointer to the User Interface manager
  G4UImanager* UImanager = G4UImanager::GetUIpointer();

  if (ui)
  // Define (G)UI terminal for interactive mode
  {
    UImanager->ApplyCommand("/control/execute vis.mac");
    ui->SessionStart();
    delete ui;
  }
  else
  // Batch mode
  {
    G4String command = "/control/execute ";
    G4String fileName = argv[1];
    UImanager->ApplyCommand(command + fileName);
  }

  delete visManager;

  delete runManager;

  return 0;
}

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