public DataBase()
{
_testsBase = new TestsBase();
_authorsBase = new AuthorsBase();
_solversBase = new SolversBase();
_usersScoreBase = new UsersScoreBase();
}
public void Copy(DataBase dataBase)
{
_testsBase = dataBase._testsBase;
_authorsBase = dataBase._authorsBase;
_solversBase = dataBase._solversBase;
_usersScoreBase = dataBase._usersScoreBase;
}