CP213 FINAL EXAM QUESTIONS AND CORRECT ANSWERS. VERIFIED 2025/2026.

CP213 FINAL EXAM QUESTIONS AND
CORRECT ANSWERS. VERIFIED
2025/2026.




ArrayList - ANS Dynamic array



ArrayList<String> namelist;

nameList = new ArrayList<String>();



Has instance methods:

Add

Get(index)

Size



Varargs (variable argument) - ANS Allows a method to accept zero or multiple arguments



returnTypr MethodName (dataType ... variableName)



... must be included



Can only be one in the argument
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, Must be the last argument



Inheritance - ANS Using this technique, a very general form of a class is first defined and
complied, and then more specialized versions of the class are defined by adding instance
variables and methods. The new specialized classes automatically have all the instance variables
and methods that the base case has.



Allows code to be reused without copying it into the definition of the derived classes



public class HourlyEmployee extends Employee{...}



Override - ANS Derived classes can change or "override" inherited methods from the base
class to provide their version of the method



@Override

public double area (double...dimensions) {

}



Overloading - ANS When a method in a derived class has a different signature from the
method in the base class, that is overloading



It still inherits the original method from the base class as well



Final modifiers - ANS If it is placed before the definition of a method, that method may not
be redefined in a derived class, and if it is placed before a class, that class may not be used as a
base class to derive other classes



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