Lesson: 34 | Which day did you born?

Expected Outcome

Wednesday

Code

Specific Date

Datetime myDOB = Datetime.NewInstance(1983,3,2);
String dayofMyDob = myDOB.format('EEEE');
System.debug(dayofMyDob); 

Year and Month Dynamic

Integer y =1983;
Integer m =3;
Integer d =2;
Datetime myDOB = Datetime.NewInstance(y,m,d);
String dayofMyDob = myDOB.format('EEEE');
System.debug(dayofMyDob); 

In a Class as a Method

public class UsefulApexCodes {
    
    public static void BasicApex15(Integer y, Integer m, Integer d){
        Datetime myDOB = Datetime.NewInstance(y,m,d);
        String dayofMyDob = myDOB.format('EEEE');
        System.debug(dayofMyDob); 
    }
    
}

Test Class

@isTest
public class UsefulApexCodesTest {

    @isTest
    static void testBasicApex15() {
        // Test with a known date of birth
        Integer y = 2000;
        Integer m = 1;
        Integer d = 1;
        UsefulApexCodes.BasicApex15(y, m, d);
    }
}

Video