ApexGuru OR ApexLearner Quiz 2

Unpredictability means what it means. I don't know how you define it. It is what it is. (Michael Keaton)

But don't worry if your fundamentals are strong in Apex programming you can predict the output for almost any of the code :)

ApexGuru Apex class code as mentioned below.

public class ApexGuru {
    
    public void methodOne(){
        
        Map<Id,Contact> apexGuruMap = new Map<Id,Contact>();
        methodTwo(apexGuruMap);
		System.debug('Apex Guru has won with count :::'+apexGuruMap.size());
    }
    
    public void methodTwo(Map<Id,Contact> apexGuruMap){
        
       apexGuruMap = new Map<ID, Contact>([SELECT Id, LastName FROM Contact LIMIT 3]);
    }

}

ApexLearner Apex class code as mentioned below.

public class ApexLearner {
    
    public void methodOne(){
        
        Map<Id,Contact> apexLearnerMap = new Map<Id,Contact>();
        methodTwo(apexLearnerMap);
        System.debug('Apex Learner has won with count :::'+ apexLearnerMap.size());
    }
    
    public void methodTwo(Map<Id,Contact> apexLearnerMap){
        
       Map<Id,Contact> apexLearnerMapTemp = new Map<ID, Contact>([SELECT Id, LastName FROM Contact LIMIT 3]);
       apexLearnerMap.putAll(apexLearnerMapTemp);
    }

}

Let me know the output in the comment section if we execute below syntax through Anonymous window.

ApexGuru aGuru = new ApexGuru();
aGuru.methodOne();
------------------------------

ApexLearner aLearner = new ApexLearner();
aLearner.methodOne();

?

*Note: Please don't waste your time if you run the same in Developer console and paste the output here as this way we are not going to make any changes in our development skills. 

If you like this article please share with other Salesforce programmers as well.