Classes in C++ - Reading Assignment

[Vlavio]

1 -> Because in classes we can use the public and the private specifiers, also we can use the member functions inside classes
2 -> Methods are functions that belongs to the class
3 -> A class describes the contents of the objects that belong to it: it describes an aggregate of data fields (called instance variables), and defines the operations (called methods).
4 -> a object is a structure that contains variables and methods

[saf]

1. Classes can contain member variables an member functions.
2. Methods are functions defined within a class.
3. class Name{
   public:
   //methods and variables here
   }
4. An object is an instance of a class.

[Gabriel_Ng]

@ivan

1. Why do we need classes, why can’t we just use structs?
2. What are methods?
3. How would you define a class?
4. What is an object?

1. With structs, we can only store data. With classes we can provide functions that works with data.

2. Methods are functions defined in classes

3. class MyClass {
   …
   };

4. Many things it can be instance of class, variable with members…

[Mohamed_Farah]

1. Structs only define data types while classes can also hold functions.

2. Methods are member functions and are defined inside classes.

3. class name{
   Public :
   variables
   };
   };

4. A object is a structure that contains variables and structures.

[Alko89]

@Mohamed_Farah

A object is a structure that contains variables and structures.

Can also be an instance of a class.

[jelle_van_der_meer]

1. Why do we need classes, why can’t we just use structs?
A normal struct can just make a list. But with a class you can add functionality

2. What are methods?
Methods are like members from a struct but the difference is that these are the functions inside of the class.

3. How would you define a class?

class ClassName
{
public:
       int  memberName1
       int  memberName2
       
        void printFunction()
       {
                    std:cout << memberName1 << memberName2;
       }
};

4. What is an object?
An object is an instance of a class. A variable of the type class allocated to memory.

[mwonder]

1. Why do we need structs?

A struct (short for structure) allows us to group variables of mixed data types together into a single unit.

2. What are members in a struct?

These variables that are part of the struct are called members (or fields)

3. How do you access a member inside a struct?

In order to access the individual members, we use the member selection operator (which is a period).

4. What is a nested struct?

You can nest one struct into another struct, this is a nested struct

1. Why do we need classes, why can’t we just use structs?

we often want our types to not only hold data, but provide functions that work with the data as well. In C++, this is typically done via the class keyword. The class keyword defines a new user-defined type called a class.

2. What are methods?

Functions defined inside of a class are called member functions (or sometimes methods ). Member functions can be defined inside or outside of the class definition

3. How would you define a class?

The class keyword defines a new user-defined type called a class.

4. What is an object?

An object is an instance of a class

[Alko89]

Why did you post the struct homework here together with classes?

[chim4us]

1. Why do we need classes, why can’t we just use structs?
   With struct we can only store data, as it does not have the ability to have a function in side it

2. What are methods?
   Methods are functions defined inside a class

3. How would you define a class?
   We can define a class with class keyword
   class DemoClass{
   …
   };

4. What is an object?
   An object is an instance of a class

[SirGoat]

1. We need classes because not only do we want our types to hold data but, also functions. We can’t just use structs as struts cannot be assumed to “deallocate” the memory it used when no longer in use. whereas a class will. Structs are recommended for data-only structures for this reason.
2. Methods are also referred to as “member functions”. These are functions defined within a class.
3. Define a class by declaring variable(s) of the class.
4. An object is an instance of a class.

[Alko89]

@SirGoat

Define a class by declaring variable(s) of the class.

This is when you initialize the class. Definition of a class is when you define what it does. You use a class keyword with the class name, following the body.

[Niki_Kou]

1. With the use of classes we can contain functions as well as data, whereas stunts can only contain data groups.
2. Functions defined inside of a class.
3. class Class {
   public: …
   }
4. An instance of a class.

[Tyler11]

1. In structs we are limited to storing only data as members. Classes are allowed to store both data as members and functions as members.

2. Methods are functions defined within a class.

3. When defining a class in C++ we use either the keyword class or the keyword struct.

4. An object is an instantiation of a class. In terms of variables, class would be the type.

[Johnb3]

@ivan

1. Why do we need classes, why can’t we just use structs?
2. What are methods?
3. How would you define a class?
4. What is an object?

Ans. 1
Structs only store data, but classes store data and more importantly, give further room to build in functionality.
Ans. 2
Methods are commonly known as the functions contained within the class of an object orientated programme.
Ans. 3
A class, like a struct, is a type that not only holds data, but furthermore provides the necessary functionality of the object orientated programme. The class can also contain a function that can be executed, such as, printing out a certain value contained within that class, upon the computer screen, that the user may see. Convention holds that the keyword class name starts with a capital letter.
Ans. 4
An object is the declaration of a variable pertaining to the class for which it references. So therefore, a definition of that class type must be created first.

[RoryPhilBTC]

1. Why do we need classes, why can’t we just use structs?
Classes can handle functions as well as data, whereas structs can only handle data.

2. What are methods?
This is another name for member functions which are functions defined inside of a class.

3. How would you define a class?

class ClassName {
public:
// member variables and functions
}

4. What is an object?
An instance of a class with allocated memory.

[Chris1]

1. class can not only hold data, but can provide functions that work with the data as well
2. methods are member functions - functions defined inside of a class
3. class MyClass {
   //variables
   //methods
   };
4. an object is an instance of a class

[RikkeHrab]

1. Why do we need classes, why can’t we just use structs?
= They are essentially the same, but classes are private by default and has member function. In a struct you have to pass data to a function outside the struct, but with classes and member functions you can assume that you always have an implicit object of the class to work with.

2. What are methods?
= Functions defined inside a class, also called member functions.

3. How would you define a class?
= class ClassName {
public:
int m_x{};
int m_y{};
void print()
cout << " X is: "<<m_x << " and Y is: ” << m_y << endl;
}
};

4. What is an object?
= If you consider class the blueprint of a building, the object is the actual building.

[jad]

1. Why do we need classes, why can’t we just use structs?
Classes let our types to not only hold data as in the case of structs, but provide functions that work with the data as well.

2. What are methods?
Methods are functions defined inside of the class, sometimes called member functions.

3. How would you define a class?
Classes and structs are essentially the same, the only significant difference is the public keyword in the class.

4. What is an object?
It is an instance of a class

[ZigaP]

@ivan

Welcome to the discussion about the reading assignment about Classes in C++.

Leave your answers to the questions below in this thread. If you have any questions or you want to discuss something connected to the assignment feel free to do it in this thread as well, but please everything to the topic.

1. Why do we need classes, why can’t we just use structs?
2. What are methods?
3. How would you define a class?
4. What is an object?

1. Structs can only hold data, while classes can hold functions as well.
2. Functions defined inside of class.
3. class NewClass {
   public:
   …
   };
4. An object is one specific class-type thingy.

[kyliezz]

1. We need classes and not only simply structs because in the world of object-oriented programming, we want our types to not only hold data but be able to provide functions to work with as well.
2. Methods are functions defined inside of a class.
3. class NameOfClass
   {
   public:
   //listed variables
   };
4. An object is a class type that requires both data and functions to be bundled together.