C++ Program: Insert an Element into an Array

 // 2 C++ program - insert an element into an array at a given position.

#include<iostream.h>

#include<conio.h>

#include<stdlib.h>

class Insertion

{

private:

int a[10], n, pos, ele, i; //Data Members

public:

void readdata( );

void insert( ); // Member Function Declaration

void display( );

};

void Insertion::readdata( )

{

cout<<"Enter the size of the array"<<endl;

cin>>n;

cout<<"Enter the elements for the array"<<endl;

for(i=0; i<n; i++)

cin>>a[i];

cout<<"Enter the position of the element in the array"<<endl;

cin>>pos;

cout<<"Enter the element to be inserted"<<endl;

cin>>ele;

}

void Insertion::insert( )

{

if(pos>n)

{

cout<<"Out of array limits!!!";

getch( );

exit(0);

}

else

{

for(i=n; i>=pos; i--)

a[i+1] = a[i]; // Shift array elements

a[pos] = ele; // Insert the given element

n = n+1; // Size of the array is incremented by 1

}

}

void Insertion::display( )

{

cout<<"Array elements after insertion are:"<<endl;

for(i=0; i<n; i++)

cout<<a[i]<<"\t";

}

void main( )

{

Insertion i;

clrscr( );

i.readdata( );

i.insert( );

i.display( );

getch( );

}