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C Program to open an existing file and read itYou have to save the file which you want to read in the home folder (ie in the folder where your c program exists with ). Give the name of file with its extension (like name.txt) when it is asked.#include <stdlib.h>#include<stdio.h>int main(){    FILE *fptr;    char filename[15];    char ch;//    clrscr();    printf("Enter the filename to be opened \n");    scanf("%s", filename);    /*  open the file for reading */    fptr = fopen(filename, "r");    if (fptr == NULL)    {printf("Cannot open file \n");exit(0);    }  &...
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Tag :file handling
  April 11, 2014, 11:42 pm
C++ Program to count lines,words and characters of a string#include <iostream>using namespace std;class countli{    char c;    int lines,words,chars;public:    void input()    {       cout<<"Enter string termanate by # : ";    }    void operation()    {        lines=1;        words=1;        chars=1;        while(c != '#'){        cin.get(c);        chars++;        if(c==' ' || c=='\n')            words++;     ...
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Tag :CPP Program
  April 9, 2014, 9:28 pm
C Program to sort n number of integers by using bubble sort technique #include<stdio.h>#include<conio.h>void swap(int[],int,int);void dis(int[],int);void main (){int a[100];int n,i,temp,j;clrscr();printf("Enter how many numbers do you want");scanf("%d",&n);printf("Enter the %d numbers",n);for(i=0;i<n;i++){scanf("%d",&a[i]);}printf("Unsorted values\n");dis(a,n);for (i=0;i<n;i++){for(j=0;j<n-1;j++)  {if(a[i]<a[j])    {swap(a,i,j);    }    }}printf("Sorted values are as follow\n");dis(a,n);getch();}void dis (int b[],int n){int i;for(i=0;i<n;i++)printf("%d\n",b[i]);}void swap(int b[],int k,int l){int temp;temp=b[k];b[k]=b...
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Tag :ascending order
  April 8, 2014, 10:35 pm
C Program to create a menu based program using switch case #include<stdio.h>#include<conio.h>#include<stdlib.h>void main(){int s,n1,rem,rev=0,num,n,f=1,i,sum=0;clrscr();printf("Choose the option\n");printf("1. Cheque wheather number is palindrome\t2. Factorial value\n");printf("3. Sum of n natural number\t\t4. Exit\n");scanf("%d",&s);switch(s){case 1:printf("Enter the number\n");scanf("%d",&n1);num=n1;while (n1>0){rem=n1%10;n1=n1/10;rev=rev*10+rem;}printf("reverse number is %d\n",rev);if(num==rev)printf("Number is palindrome");elseprintf("Number is not palindrome\n");break;case 2:printf("Enter the number\n");scanf("%d",&n);for(i=n;i>0;i--)f=f*i;printf("fac...
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Tag :factorial
  April 7, 2014, 10:17 pm
C++ Program to swap two integers using friend function In object-oriented programming, a friend function that is a "friend" of a given class is allowed access to private and protected data in that class that it would not normally be able to as if the data was public. Normally, a function that is defined outside of a class cannot access such information. Declaring a function a friend of a class allows this, in languages where the concept is supported.                                            &...
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Tag :CPP Program
  April 6, 2014, 10:25 pm
C++ Program to find out the sum of digits of a number#include<iostream.h>class sumdig{int n,rem,rem1;public:void input(){cout<<"Enter the number\n";cin>>n;}void calculation(){rem1=0;while (n>0){rem=n%10;n=n/10;rem1=rem1+rem;}}void output(){cout<<"Sum of single digits is "<<rem1;}};void main(){clrscr();sumdig a;a.input();a.calculation();a.output();}...
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Tag :C++ Program
  April 5, 2014, 8:29 pm
C++ Program to generate n number of Fibonacci series In mathematics, the Fibonacci numbers or Fibonacci series or Fibonacci sequence are the numbers in the following integer sequence:1,1,2,3,5,8,13,21,34,55,89,144….or (often, in modern usage):0,1,1,2,3,5,8,13,21,34,55,89,144……(sequence A000045 in OEIS)By definition, the first two numbers in the Fibonacci sequence are 1 and 1, or 0 and 1, depending on the chosen starting point of the sequence, and each subsequent number is the sum of the previous two.                               &nb...
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Tag :CPP Program
  April 4, 2014, 11:12 pm
C++ Program to check whether the number is palindrome or notA palindrome is a word, phrase, number, or other sequence of symbols or elements, whose meaning may be interpreted the same way in either forward or reverse direction.[1] Famous examples include "Amore, Roma", "A man, a plan, a canal: Panama" and "No 'x' in 'Nixon'". --- wiki#include<iostream.h>#include<conio.h>class palindrome{int n1,n2,rem,rev;public:void input(){cout<<"Enter the number\n";cin>>n1;}void calculation(){rev=0;n2=n1;while (n1>0){rem=n1%10;n1=n1/10;rev=rev*10+rem;}}void output(){if(n2==rev)cout<<"Number is palindrome";elsecout<<"Number is not palindrome";}};void main(){clrscr();pa...
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Tag :CPP Program
  April 3, 2014, 6:16 pm
C++ program to check whether the number is prime or not#include<iostream.h>#include<conio.h>class prime{int num,i,p;public:void input(){cout<<"Enter any number\n";cin>>num;}void output(){if(num==1 || num==2)cout<<"Number is prime";else{for(i=2;i<num;i++){if(num%i==0) {cout<<"Number is not prime";break; } else p++; if(i==num-1) { if (p!=0) cout<<"Number is prime"; } } }}};void main(){clrscr();prime a;a.input();a.output();getch();}...
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Tag :CPP Program
  April 2, 2014, 10:50 pm
C++ Program to do operation on matricesThis is done in Code::Blocks Ide. Some modification are needed to run in Turbo C++ ide, like changing header into iostream.h, adding one more header conio.h and hence getch at the end of the program, removing using namespace std;, and all#include<iostream>#include<stdlib.h>using namespace std;class matrix{    int fraw,fcol,sraw,scol,i,j,k;    int f[50][50],s[50][50],l[50][50];public:    void input()    {        cout<<"Enter number of raws and columns do you want for fisrt matrix\n";cin>>fraw>>fcol;cout<<"Enter number of raws(same as number of columns in first...
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Tag :addtion of matrixe
  April 2, 2014, 9:21 am
C++ Program to demonstrate operator overloading function (Unary Operator) Using friend function#include<iostream>class A{int x,y;public:void input (){cout<<"Enter X and Y values\n";cin>>x>>y;}void disp(){cout<<"x is "<<x<<endl<<"y= "<<y<<endl;}friend void operator --(A &o);friend void operator ++(A &o);};void operator --(A &o){o.x=--o.x;o.y=--o.y;}void operator ++(A &o){o.x++;o.x=o.x;o.y++;o.y=o.y;}int main(){A a;a.input();a.disp();cout<<"After decrimenting\n";//accessing unary minus operator--a;//calling operator -()a.disp();++a;cout<<"After incrimenting\n";a.disp();return 0;}...
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Tag :CPP Program
  April 1, 2014, 6:58 pm
C++ Program to find whether the number is Armstrong or not#include<iostream.h>#include<conio.h>class amstrong{int n,nd,n2,n3,an,re,re1;public:void inputnumb(){cout<<"Program to find Amstrong Number\n";cout<<"Enter the number\n";cin>>n;}void no_digit(){n2=n;nd=0;do{n2=n2/10;nd++;}while(n2!=0);}void calculation(){an=0;n3=n;do{int i;re=n3%10;re1=re;for(i=0;i<nd-1;i++)re=re*re1;an=an+re;n3=n3/10;}while(n3!=0);}void output(){cout<<"Entered number is of "<<nd<<" digits\n";if(n==an)cout<<"Number is Amstrong number";elsecout<<"Number is not Amstrong number";}};void main(){clrscr();amstrong a;a.inputnumb();a.no_digit()...
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Tag :Amstrong numbers
  March 31, 2014, 7:56 pm
C Program to print call of day (habits)#include<stdio.h>#include<conio.h>void main(){int a;clrscr();printf("Enter integer time\n");scanf("%d",&a);switch(a){case 6:printf("waking up");break;case 7:printf("taking bath");break;case 8:printf("Reading news paper");break;case 9:printf("Having Break fast");break;case 10:printf("Going Class Room");break;default:printf("Undergoing class");}getch();}...
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Tag :Call of day
  March 31, 2014, 2:54 pm
CPP Program : how to call function by referenceCalling by reference is new concept which is not available in C language. It is not passing address just like in C. but it is giving another name to an existing variable, just like an alias. Don't mistake this as call by reference in C. In C call by reference and call by address is same thing. But in CPP both are different, having some similarities. Call by reference is simpler than call by address. But you cannot use reference all the place you are using address. This concept is clear from the following example#include<conio.h>#include<iostream>using namespace std;int addition (int &a, int &b)// declaration of called functio...
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Tag :C++ Program
  March 30, 2014, 7:59 pm
C program to implement stack using array#include<stdio.h>#include<conio.h>#include<stdlib.h>#define MAXSIZE 10void push();int pop();void traverse();int stack[MAXSIZE];int Top=-1;void main(){int choice;char ch;do{clrscr();printf("\n1.PUSH");printf("\n2.POP");printf("\n3.TRAVERSE");printf("\nEnter your Choice\n");scanf("%d",&choice);switch(choice){case 1:push();break;case 2:printf("\n The deleted element is %d",pop());break;case 3:traverse();break;default: printf("\n You entered wrong choice\n");}printf("\n Do you want to continue (Y/N\n");fflush(stdin);scanf("%c",&ch);}while(ch=='Y'||ch=='y');}void push(){int i;int item[5];if(Top==MAXSIZE-1) {printf("The stack i...
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Tag :Data Structure
  March 30, 2014, 11:49 am
C Program to print calender of a perticular monthUse microsoft visual Studio or Code::Blocks Ides to run this subject. In Turb C++ It faces some Problems#include<stdio.h>#include<conio.h>int main(){enum day{mon,tue,wed,thu,fri,sat,sun};enum month{January,February,March,April,May,June,july,Augest,September,October,November,December};int m,y,i,re=0,nm,ny,nd;long unsigned int sum;//clrscr();printf("Enter month & year (Ex.2 2000) \n");scanf("%d%d",&m,&y);printf("\t\t\t");switch(m){case 1:printf("January");break;case 2:printf("February");break;case 3:printf("March");break;case 4:printf("April");break;case 5:printf("May");break;case 6:printf("june");break;case 7:printf("Jul...
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Tag :Calandar
  March 30, 2014, 11:07 am

C program to Find out Odd and Even numbers#include<stdio.h>#include<conio.h>void main(){int a,b;clrscr();printf("Enter a Number\n");scanf("%d",&a);b=a%2;if (b==0){printf("Number is odd");}else{printf("Number is even");}getch();}...
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Tag :Even number
  March 29, 2014, 10:02 pm
Let us start C programmingThis is done using Turbo C++ Ide. you can do the same with code blocks, microsoft visual studio ides also #include<stdio.h> //to include standard input output header file in which some keywords are defined#include<conio.h>void main()           //compiling starts with main() program{clrscr();     // all statement of c should be terminated with ;(semi colon) printf("Hallo World");   //used to send the data into output devices getch();   // to display the messages in screen }If you are using Turbo C++, copy this program and ...
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Tag :hallo
  March 28, 2014, 11:09 pm
C Program to print Your Address#include<stdio.h>#include<conio.h>void main(){clrscr();char a,b,c;printf("Name:\t");scanf("%s",a);printf("Street:\t");scanf("%s",b);printf("Pin Code: \t");scanf("%s",c);printf("%s%s%s",a,b,c);getch();}...
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Tag :address printing
  March 28, 2014, 10:35 pm
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