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INTRODUCTION
SECTION – A
WELCOME
C++ AND DATA STRUCTURES
Ashwini E
computer science engineer
TEACHER
former lecturer teresian college mysore
https://www.youtube.com/channel/UCpsOGE9XP-vD-flK6sFNzKA
PROGRAM 1:
FACTS
Frequency is number of times an element present in an array
Write a C++ program to find the frequency presence of an element in an array.
10 20 20 20 30 40
frequency 20 is 3
Syntax
RULES
LIST
OF RULES
1
declaration of class:
class class_name
{
data_members ;
members_function;
};
LIST
OF RULES
2
definition of member function
void class_name::member_function_name( )
{
//
}
3
creating object
class_name object_name ;
Write a C++ program to find the frequency presence of an element in an array.
Program
Class
#include<iostream.h> #include<conio.h>
class Frequency
{
private: int a[10], n, ele, count;
public: void readdata( );
void findfreq( );
void display( );
};
Read
void Frequency::readdata( )
{
cout<<"Enter the size of the array:"<<endl;
cin>>n;
cout<<"Enter the array elements:"<<endl;
for(int i=0; i<n; i++)
cin>>a[i];
cout<<"Enter the element to find the frequency"<<endl;
cin>>ele;
}
logical part
Logic
void Frequency::findfreq( )
{
count=0;
for(int i=0; i<n; i++)
if(ele == a[i])
count++;
}
Display
Display Data
void Frequency::display( )
{
if(count > 0)
cout<<ele<<"Occurs"<<count<<" Time"; else cout<<ele<<" Does Not Exists";
}
Main function
Main
void main( )
{
Frequency f;
clrscr( );
f.readdata( );
f.findfreq( );
f.display( );
getch( );
}
full_program
void Frequency::display( )
{
if(count > 0)
cout<<ele<<" Occurs"<<count<<" Time"; else
cout<<ele<<" Does Not Exists";
}
void main( ) //Main function
{
Frequency f;
clrscr( );
f.readdata( );
f.findfreq( );
f.display( );
getch( );
}
#include<iostream.h>
#include<conio.h>
class Frequency
{
private: int a[10], n, ele, count;
public: void readdata( );
void findfreq( );
void display( );
};
void Frequency::readdata( )
{
cout<<"Enter the size of the array:"<<endl;
cin>>n;
cout<<"Enter the array elements:"<<endl;
for(int i=0; i<n; i++)
cin>>a[i];
cout<<"Enter the element to find the frequency"<<endl
; cin>>ele;
}
void Frequency::findfreq( ) /
{
count=0;
for(int i=0; i<n; i++)
if(ele == a[i])
count++;
}