What methods can be used to manage fragments with FragmentManager?

With FragmentManager, you can manage fragments in the following ways:

• Adding a fragment: beginTransaction().add(containerId, fragment).commit()
• Replacing a fragment: beginTransaction().replace(containerId, fragment).commit()
• Removing a fragment: beginTransaction().remove(fragment).commit()
• Adding a transaction to the back stack for return capability: addToBackStack(null)
• Finding a fragment by tag or id: findFragmentById() or findFragmentByTag()

Example of adding a fragment:

FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction transaction = fragmentManager.beginTransaction();
transaction.add(R.id.fragment_container, new MyFragment());
transaction.addToBackStack(null);
transaction.commit();