Program to Print Process ID

Following C program will print Process ID.

#include<stdio.h>
int main(void)
{
printf("My process ID %ld",getpid());
return 0;
}

Output of the program:

My process ID 2213.

Note: You will get different process ID on your system.

* * * * *

Thanks for Visit...

A New Topic will be added to this place soon....

Bit Stuffing Simulation

Networking  >> Bit Stuffing Simulation Program

In bit stuffing processing, we add 0 after five consecutive 1's in databits.

#include<stdio.h>
int main()
{
 int i=0,count=0;
 char databits[80];

 printf("Enter Data Bits: ");
 scanf("%s",databits);

 printf("Data Bits Before Bit Stuffing:%s",databits);
 printf("\nData Bits After Bit stuffing :");
 
 for(i=0; i<strlen(databits); i++)
 {
    if(databits[i]=='1')
        count++;
    else
        count=0;
printf("%c",databits[i]);
  if(count==5)
    {
        printf("0");
        count=0;
    }
 }
 return 0;
}

Output of the Program:

Enter Data Bits: 101111111000
Data Bits Before Bit Stuffing:101111111000
Data Bits After Bit stuffing :1011111011000

< Back to Networking Page >

Playfair Key Matrix Generation: Keyword validation according to the specification given in the algorithm.

/*Playfair Key Matrix Generation: Keyword validation according to the specification given in the algorithm.*/

#include<stdio.h>

int main(){

  char key[10];
  int i,j,flag=0, cnt=0, key_check[26]={};

  printf("Enter your keyword:");
  scanf("%s",key);

  //Logic to count character frequency in MONARCHY
  for(i=0; i<strlen(key); i++)
  {
key_check[key[i]%65]++;
  }

  for(i=0; i<26; i++)
  {
if(key_check[i] > 1)
flag=1;
//Logic to display frequency
//printf("%c=%d \n",i+65, key_check[i]);
  }

  if(flag==1)
printf("Keyword %s is not suitable for generating Playfair Key Matrix.", key);
  else
printf("Keyword %s is ok for generating Playfair Key Matrix.", key);

  return 0;
}

//This program will check only keywords enter in Capital letters.

Output - 1
Enter your keyword:MONARCHY
Keyword MONARCHY is ok for generating Playfair Key Matrix.

Output - 2
Enter your keyword:HELLO
Keyword HELLO is not suitable for generating Playfair Key Matrix.

Difference between C and C++ Programming

Criteria	C Programming	C++ Programming
Language Type	C is Procedural and Function oriented programming language.	C++ is Object oriented and procedural programming language.
Level of Language	Low / Middle level	Middle / High level
Source file extension	.c	.cpp
Developed by	C originally developed by Dennis Ritchie between 1969 and 1973 at Bell Lab.	C++ was developed by Bjarne Stroustrup
Supports	It has no support for encapsulation, polymorphism and inheritance	It supports for encapsulation, polymorphism and inheritance.
Security	Limited	Built in to language due to object oriented nature.
Basic Program	#include<stdio.h> int main(){    printf(“Hello”);    return 0; }	#include <iostream> using namespace std; int main(){      cout << "Hello";      return 0; }
Printing output using variable	printf(“Maths=%d”, marks);	cout << “Maths=” << marks;

* * * * *

* * * * *

Difference between C and Java Programming

Criteria	C Programming	Java Programming
Language Type	C is Procedural and Function oriented programming language.	Java is Object oriented programming language.
Level of Language	Low/Middle level	High level
Source file extension	.c	.java
Developed by	C originally developed by Dennis Ritchie between 1969 and 1973 at Bell Lab.	Java originally developed by James Gosling at Sun Microsystems
Platform dependency / Portability	C is platform dependent.	Java is platform independent.
Security	Limited	Built in to language
Basic Program	#include<stdio.h> int main(){ printf(“Hello”); return 0; }	public class HelloWorld {    public static void main(String[] args) {        System.out.println("Hello");    } }
Printing output using variable	printf(“Maths=%d”, marks);	System.out.print(“Maths” + marks);
Basic compiler	gcc	javac
Known IDE / Editors	BorlandC, TurboC, Dev C++, CodeBlocks	Eclipse, NetBeans

* * * * *

* * * * *