Stranger Journal uhhh can't remember:

Mersault at the end of the book reaffirms his thoughts as having no meaning in anything. He slightly had some feelings, but afterwords he realized there really is no meaning or significance. I believe that with the events happening along with the world, and at the moment with Germany taking over everything during WWII that Camus wanted people to agree that nothing really mattered, because they were going to take over anyway. After accepting that fact, people could get over this easier. Like Mersault at the end, he accepts that he was going to die, and he was happy with this, he just wishes that the people that condemned him to death were there to scream in hate, and he could show he didn't care.