ADVANCED OBJECT-ORIENTED PROGRAMMING TEST FOCUS

arr.GetLength(0);

arr.GetLength(0);

Suppose you have a two-dimensional array named arr. How are you going to get the length of its rows?

structure

It is a fundamental concept in the C# programming language that allow you to define and manipulate composite data types.

Base Case

This refers to the "stopping case" and the simplest way of the problem that can be directly solved

Escape Sequences

These are used for characters that cannot be printed using the normal way of printing

c. these are methods used to MODIFY the values of private data members of a class from outside the class

What is the purpose of setters?
a. these are methods used to ACCESS the values of private data members of a class from outside the class
b. these are special methods, but does not return a value
c. these are methods used to MODIFY the values of private data members of a class from outside the class
d. all of these

internal

Members with this access modifier are visible to the subclass and any class within the same assembly

d. Use the abstract keyword before the class keyword.

How do we define abstract classes in C#?
a. Use the abstract keyword after the class keyword.
b. Use the abstract-class keyword after the class keyword.
c. Use the abstract-class keyword before the class keyword.
d. Use the abstract keyword before the class keyword.

Microsoft

Who developed C#?

a. represent the state or characteristics of an object
d. defined within the class and store the object's data

Which of the following defines a field?
a. represent the state or characteristics of an object
b. define the behavior of the objects
c. allow you to perform actions or calculations related to the state of the object
d. defined within the class and store the object's data

c. Can be instantiated independently without the need for subclasses.
d. Can be directly instantiated using the new keyword.
e. Contains concrete implementations for all its methods.

Which of the following describes a concrete class?
a. Exists to serve as a blueprint for other classes.
b. Subclasses must implement all abstract methods.
c. Can be instantiated independently without the need for subclasses.
d. Can be directly instantiated using the new keyword.
e. Contains concrete implementations for all its methods.
f. May contain both abstract and concrete methods.

c. to inherit from a base class

What is the purpose of the : keyword?
a. create an instance of the derived class
b. create an object
c. to inherit from a base class
d. to encapsulate data members

do-while

This iterative structure ensures that the statement will be executed once.

Method Overriding

This occurs when a subclass provides a specific implementation for a method that is already defined in its superclass

break

This statement is used to prematurely terminate the loop

void

Which keyword is used if the function does not require to return a value?

{2:C}

Write the format specifier for the third argument, in currency format.

Polymorphism

This OOP principle allows objects of different classes to be treated as objects of a common base class or interface during runtime.

Functions

They are used to encapsulate the set of tasks in a single unit, ensuring the DRY principle.

ref

This keyword is used in passing by reference

index

they refer to the array's addresses/location, and are used to access its elements.

return

this keyword is used to exit a method, providing a value to the caller

{ and }

the function definition is placed inside these characters

member variables

These are places inside the curly braces when defining a structure

arr.GetLength(0);

Suppose you have a two-dimensional array named arr. How are you going to get the length of its rows?

main method

This contains the main logic of the program

structures

these are complex data types that contains multiple data members with various types.

sample:
Rectangle rectangle1 = new Rectangle {Width = 10, Height = 5};

Suppose you created a structure named Rectangle, with integer data members such as Width and Height. How are you going to create an instance of it, initializing 10 and 5 for the value of width and height, respectively?

ref

This keyword is used in passing by reference

Console.Writeline()

This keyword is used in displaying a string literal, or any value in the console

Recursive Functions

These are functions that repeatedly call themselves, and changing the input values

Escape Sequences

These are used for characters that cannot be printed using the normal way of printing

Function Call

This is done by specifying its name and passing the arguments if required

while loop

This iterative structure evaluates the condition before each iteration of the loop

Pass by Reference

This allows methods to modify the original values of the actual parameters directly

dot(.) operator

This operator is used to access the members of a structure

{2:C}

Write the format specifier for the third argument, in currency format

Base Case

This refers to the "stopping case" and the simplest way of the problem that can be directly solved

void

This keyword is used if the method does not have a return type

arr[3,2] = 25;

How will you assign the value 25 to an array named arr, on the fourth row index and third column index?

MidtermPassedCutie

Identify the output of the given codes in each item. Please remember, they are case-sensitive

2.000

Identify the output of the given codes in each item. Please remember, they are case-sensitive

Jerome is a 4th year student.

Identify the output of the given codes in each item. Please remember, they are case-sensitive

Artist

Which of the following is the base class? Write only the class name.

Painter

Which of the following is the derived class? Write only the class name

Fatima

Identify the output of the given codes in each item. Please remember, they are case-sensitive

7 14 210 28 35

Identify the output of the given codes in each item. Please remember, they are case-sensitive

Minimum value: 8

Identify the output of the given codes in each item. Please remember, they are case-sensitive

16

What will be the value of min if i is 2?