what is class in c++ ?

• Classes are user-defined data-type, which contains collection of data members and member functions on which objects works.

• Once a class has been declared, we can create any number of objects of that class.

• Objects are variables of the type class.

• A class is a collection of objects of similar types.

• A class is a collection of objects of similar types.

• A class is defined in C++ using keyword “class” followed by the name of class.

• The body of class is defined inside the curly brackets and terminated by a

• semicolon at the end.

syntax:-

class className

{

// some data

// some functions

};

Example: Class in C++

class Test

{

private:

int data1;

float data2;

public:

void function1()

{ data1 = 2; }

float function2()

{

data2 = 3.5;

return data2;

}

};

Here, we defined a class named “Test”.

This class has two data members: data1 and data2 and two member functions:

function1() and function2().

•  Class members can be private, public, or protected.
• If fruit has been defined as a class, then the statement
• Fruit mango;
• Will create an object “mango” of the class Fruit.