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Monday, 29 October 2018

Introduction to HTML and HTML Tags

Amit Kumar Dey web development October 29, 2018

HTML is short for Hyper Text Markup Language which is standard markup language for creating web pages (electronic documents on world wide web). It was first developed by Tim Berners-Lee in 1990. HTML pages are build through HTML elements and the HTML elements are represented by tags.

HTML Tags :

HTML tags are building component of HTML page. Tags are used to mark up the start of an HTML element. Tags are enclosed with angular brackets such as , < img > etc. Generally they come in pair.

 < tag > Content here... < /tag >

is known as opening tag and the angular bracket with backslash is known as closing tag.
The content withing the opening and the closing tag will be executed according to the tagname by the browser.

Lets begin with a simple code :

<! DOCTYPE html >
< html >
< head >
 < title > HTML < /title >
< head >
< body >

< p >Welcome to HTML Tutorials by < b >< i>wordsclank < /i >< /b > < /p >

< /body >
< /html >

Explanation:

< ! DOCTYPE html > is not an HTML tag. It only instruct the web browser about the version HTML the page is written in.
< html > is the container of all other elements.< /html >
< head > is the container for meta data or data about data like document title, character set, styles, links, scripts, and other meta information.< /head >
The content between < title > and < /title > is shown on browser's title bar.
Within the < body > and < /body > tag all your code or the main content will be written.
tag is used for paragraphs.
tags are for bold and italic.

Browsers view :

Friday, 13 April 2018

C Program to find Perfect Numbers between intervals given by user

Amit Kumar Dey programming April 13, 2018

What is Perfect Number?

A perfect number is a positive integer that is equal to the sum of its proper positive divisors, that is, the sum of its positive divisors excluding the number itself (also known as its aliquot sum).

Also, a perfect number is that number whose sum of its proper positive divisor(including the number itself) is equals to the twice the number.

For example 28,

divisor of 28:1,2,4,7,14,28

sum of divisors(excluding the number itself):1+2+4+7+14=28 i.e, equals to the number 28.

or, sum of divisors(including the number itself):1+2+4+7+14+28=56 i.e, equals to twice the number(2 * 28 = 56).

Logic behind the program:

Take the two intervals from the user.
Run a for loop from i to last interval, where i is first interval and increment i by 1 in each iteration.
Withing that for loop run another for loop which will find the perfect numbers and print it.

Problem Statement:

Write a program in C which will find all the perfect numbers between two intervals given by the user.

Source Code:

#include

void main()

 {

   int i, j, beg, end, sum;

   printf("Enter the first interval:");

   scanf("%d", &beg);
   
   printf("Enter the last interval:");

   scanf("%d", &end);
   

   for(i = beg; i<=end; i++)

   {
     sum = 0;
     
     for(j=1; j<i; j++)
     
     {

   if(i % j == 0)

                 sum = sum + j;
          
             }

     if( sum == i) 

             {

                  printf("%d \t",i);

             }

}


 }

Output:

Tuesday, 13 March 2018

C program to store information of n student using structure

Amit Kumar Dey programming March 13, 2018

A structure is a user defined data type available in C that helps to combine a lot of different data type under a single name which is easier to handle.

For example: A structure student which will store roll number of integer data type, name of character data type, marks of float type.

Problem statement:

C program to store information of n student using structure

Source code

#include

struct student
{
 char name[100];
 int roll;
 float mark;
}str[100];

int main()
{
 int n, i;
 printf("Enter the number of student: ");
 scanf("%d",&n);
 
 printf("Enter the informations of the student:\n");
 
 for(i=0;i<n;i++)
 {
  str[i].roll = i+1;
  
  printf("For roll number %d \n",str[i].roll);
  
  printf("Enter name: ");
  scanf("%s", str[i].name);
  
  printf("Enter marks: ");
  scanf("%f",&str[i].mark);
  
  printf("\n");
 }
 
 printf("The information of %d students are as follows:\n",n);
 for(i=0;i<n;i++)
 {
  printf("Roll number : %d\n",i+1);
  printf("Name:");
  puts(str[i].name);
  printf("Marks:%f",str[i].mark);
  printf("\n");
 }
 return 0;
}

Output

Sunday, 11 March 2018

C program to find the length of a string without strlen( ) function

Amit Kumar Dey programming March 11, 2018

This program calculates the length of a string manually using a for loop.We are not using strlen( ) over here.

SOURCE CODE

#include
int main()
{
    char i, str[100];

    printf("Enter the string: ");
    scanf("%s", str);

    for(i = 0; str[i] != '\0'; i++);
    
    printf("Length of string: %d", i);
    return 0;
}

OUTPUT

Explanation:

Here within the main() we have declared one character variable i and one character string srt[].Then we print a message for the user to input the string and stores it in str[]. Then we are running a for loop which run from i=0 until str[i]!='/0' i.e, null and it will count the i i.e, the number of elements in the string.Next we just print the value of i , i.e, the number of elements in the string.

Saturday, 10 March 2018

C program to find the Armstrong Number between intervals

Amit Kumar Dey programming March 10, 2018

A number of n digit is called Armstrong number if sum of the power of n of its digits is equal to the number itself.
For example a number of three digits integer is an Armstrong number if the sum of the cubes of its digits is equal to the number itself. 153 is an Armstrong number since 1*1*1 + 5*5*5 + 3*3*3 = 371.

PROBLEM STATEMENT

Write a program in C to find the Armstrong Number between intervals.

SOURCE CODE

#include
#include

int main()
{
    int a, b, i, num1, num2, rem, n = 0, result = 0;

    printf("Enter the first interval: ");
    scanf("%d", &a);
    printf("Enter the last interval: ");
    scanf("%d", &b);
    printf("Armstrong numbers between %d and %d are: ", a, b);

    for(i = a + 1; i <= b; i++)
    {
        num1 = i;
        num2 = i;

        //checking number of digits
        while (num1 != 0)
        {
            num1 = num1 / 10;
            n++;
        }

        while (num2 != 0)
        {
            rem = num2 % 10;
            result = result + pow(rem, n);
            num2 = num2 / 10;
        }

        if (result == i) 
 {
            printf("%d ", i);
        }
        n = 0;
        // setting n as o for next iteration
        result = 0;

    }
    return 0;
}

OUTPUT

Thursday, 8 March 2018

C program to check whether a certain number is Armstrong or not

Amit Kumar Dey programming March 08, 2018

Most Related:

C program to find the Armstrong Number between intervals

SOURCE CODE

#include
#include


int main()

{

    int num, rem, altnum, result = 0, n = 0 ;


    printf("Enter an integer: ");

    scanf("%d", &num);


     altnum = num;

    

    while (altnum != 0)

    {

        altnum /= 10;

        n++;

    }


    altnum = num;


    while (altnum != 0)

    {

        rem = altnum % 10;

        result = result + pow(rem, n);

        altnum /= 10;

    }


    if(result == num)

        printf("%d is an Armstrong number.", num);

    else

        printf("%d is not an Armstrong number.", num);


    return 0;

}

OUTPUT

Sunday, 4 March 2018

C Program to Check Whether a Number is Palindrome or Not

Amit Kumar Dey programming March 04, 2018

A palindromic number is a number that remains the same when its digits are reversed.The term palindromic is derived from palindrome, which refers to a word (such as rotor or racecar) whose spelling is unchanged when its letters are reversed.
For example:12321 is same when its digits are reversed.

Palindrome number,Palindrome number in C

SOURCE CODE

#include
#include

void main()


{


    int num, i, reverse = 0, temp, rem;


    printf("Enter number: ");


    scanf("%d",&num);


    temp = num;


    while(num ! = 0)


    {


       rem = num % 10;


       num = num / 10;


       reverse=rem+(reverse*10);


    }


    if(reverse==temp)


    {


       printf(" Palindrome Number");


    }


    else


    {


       printf("Not a Palindrome Number");


    }


   getch();


}

OUTPUT

Saturday, 3 March 2018

C Program to display the Fibonacci Series up-to n number of terms

Amit Kumar Dey programming March 03, 2018

Before we start coding lets know what exactly Fibonacci Sequence is?
A series of a number in which each number is sum of the two preceding numbers.
For example, 1,1,2,3,5,8,13,21,34,55,89.. is the simplest fibonacci series.

Fibonacci Sequence,Fibonacci Sequence in c

Most related

C Program to display the Fibonacci Series up-to a certain number

SOURCE CODE

#include< stdio.h>

void main()
{
 int i, n, a = 0, b = 1, nxt;
 printf("Enter the number of terms: \n");
 scanf("%d",&n);
 
 printf("The Fibonacci series upto %d term is:\n",n);
 
 for(i = 1; i <= n; i++)
 {
  printf("%d \t",a);
  nxt = a + b;
  a = b;
  b = nxt;
 }
}

OUTPUT

C Program to display the Fibonacci Series up-to a certain number

Amit Kumar Dey programming March 03, 2018

Before we start coding lets know what exactly Fibonacci Sequence is?
A series of a number in which each number is sum of the two preceding numbers.
For example, 1,1,2,3,5,8,13,.. is the simplest fibonacci series.

Most related

C Program to display the Fibonacci Series up-to n number of terms

SOURCE CODE

#include<stdio.h>
void main()
{
 int i, n, a=0, b=1, nxt;
 
 printf("Enter the number:\n");
 scanf("%d",&amp;n);
 
 printf("The Fibonacci series is: 1, \t ");
 // first two term will always 1
 
 nxt = a + b;
 
 while(nxt &lt;= n)
 {
  printf("%d, \t",nxt);
  a = b;
  b = nxt;
  nxt = a + b;
 }
 
}

OUTPUT

Explanation

Within the main() function first we declarer i, n, a=0, b=1, nxt as integer variable.Next we display a message for the user to give input.Then we store the value given by the user in n.Then again we display a message that "The Fibonacci series is: 1, ".Here we have already printed the first term as 1 because we know that the first term of a Fibonacci series is always 1.Then in nxt we store the value of a+b.Then we are running a while loop that will run until nxt less then equall to number n.Within the loop first we are printing the value of nxt then we are assigning the value of a to b and then we are assigning the value of nxt to b and then again we are assigning the value of nxt as a+b.

C program to find the factorial of a number

Amit Kumar Dey programming March 03, 2018

Before we start coding lets have a brief look on what factorial really means.?
The factorial of a integer n is nothing but the product of the integer and all the integer below it.
For example n!=(n)*(n-1)*(n-2)...*2*1
or, n!=1*2*3*4....(n-1)*n
note that 0!=1

SOURCE CODE

#include<stdio.h>
void main()
{
 int i, num;
 int factorial;
 
 printf("Enter the integer :\n");
 scanf("%d",&num);
 if(num > 0)
 {
  for(i = 1; i <= num; i++)
  {
   factorial = factorial * i;
  }
  printf("The factorial of %d is %d",num,factorial);
 }
 else if(num == 0)
 {
  printf("The factorial of %d is 1",num,factorial);
  //0! is always 1
 }
 else
 {
  printf("Error! Negative number's factorial doesnt exist. Enter a positive number:\n");
  //error message for user for entering negavitive number
 }
 
}

OUTPUT

Explanation

Within the main function first we declared three integer variable i , n and factorial . Next we display a message to take input from the user and store it to the integer variable n.Next we use a if -else conditional checking that will check the number as positive or negative. If the number is negative then it will display a message that "Error! Negative number's factorial doesn't exist. Enter a positive number:".And if the number is positive it will continue.Then under the for loop it will multiply number and numbers below it one by one and store it in factorial integer variable.when the controls comes out of the loop then it will display it.
I

Monday, 29 January 2018

C Program to Find Prime Numbers Between Intervals Using Functions.

Amit Kumar Dey programming January 29, 2018

A Prime number an integer which is divisible only by 1 and itself.In other word a whole number who have two factor 1 and the number itself.

For example 2, 3, 5, 7, 11, 13, 17, 23, ...

Here we make a user defined function primecheck() that will check and print all the prime numbers between the given interval.

PROBLEM STATEMENT:

Write a Program in C to find prime numbers between intervals using functions.

SOURCE CODE:

#include

void primecheck(int x,int y);

void main()

{

      int n, m;

      printf("Enter the first number:");

      scanf("%d",&n);

      printf("Enter the secound number:");

      scanf("%d",&m);

      primecheck(n, m);

}


void primecheck(int x,int y)

{

      int i,count=0,j;

      for(i = x; i <= y; i++)

      {

            for(j=1; j <= i; j++)

            {

  

                  if(i%j==0)

                  {

                        count = count + 1;

                  }

            }

       if(count == 2)

       {

             printf("%d",i);

       }

       count=0;

      }

}

OUTPUT:

If the user's first number is greater than the second number then the numbers need to be swapped first.

More topics on C programming:

Wednesday, 12 April 2017

Visual Basic 6 | Convention of Fahrenheit and Celsius at a same time with Scroll Bar

Amit Kumar Dey visual basic April 12, 2017

Guys

In this post we will discuss another funny as well as interesting program in Visual Basic i.e, making temperature scale with Scroll Bar where both the Fahrenheit and Celsius will change at a same time .

Scroll bar control is vary good tools for the programmers of Visual basic.It is vary essay to use,It is of two form horizontal and vertical.We can place it in form according to our needs or choices.

We have done our design in such a way

We took four labels only and a scroll option.

Changed Property
Label1:
caption :Fahrenheit
Label2:
caption: Celsius
HScroll1:
maximum:100
minimum:0

Problem Statement:
Write a program in Vb to convert Fahrenheit and Celsius at a same time using scroll bar.

Source Code:

Private Sub Vscroll1_Change( )

         Dim C as Integer

         Dim F as Integer

            Label1.Caption = VScroll1.Value

              C = Val(Label1.Caption)

              F = 9/5*C + 32

            Label2.Caption =  F

      End Sub

The source code is written under Change event of VScroll.
Dim is used to declared a variable.
Val function is used to change a string to numeric.

Thanks for reading this post.Hope this will help you.
If you have any doubt comment bellow , we will be happy to help you.

Sunday, 9 April 2017

Visual Basic | Fibonacci Sequence

Amit Kumar Dey visual basic April 09, 2017

Guys..
We are going to generate Fibonacci sequence in Vb.Fibonacci series is the series in the the first term starts from 0 and next term will be addition of the previous two terms.

we will design the form in which we will take one text box for taking the input up-to which the series will be generated and one command button.

we will write the code under the click event of command button.

SOURCE CODE

Private Sub Command1_Click( )

Dim n, a, b, c as Integer

n = val(Text1.Text)

a =0

b =1

Print a

Print b

For i = 1 To n - 2

c = a + b

a = b

b = c

Print c

Next i

End Sub

NOTE:
1.The program uses if next loop structure.
2.Dim is used to declared a variable.
3.Val function is used to change a string to numeric.

Thanks for reading the post.Hope this will help you.If you have any doubts comment on the comment section, we will be happy to help you.

Monday, 29 October 2018

HTML Tags :

Lets begin with a simple code :

Explanation:

Browsers view :

Friday, 13 April 2018

What is Perfect Number?

Logic behind the program:

Similar Problem:

Problem Statement:

Output:

More Topics on C program

Tuesday, 13 March 2018

Problem statement:

Output

More Topics on C program

Sunday, 11 March 2018

SOURCE CODE

OUTPUT

Explanation:

More Topics on C program

Saturday, 10 March 2018

Most Related:

PROBLEM STATEMENT

Write a program in C to find the Armstrong Number between intervals.

SOURCE CODE

OUTPUT

Related Topics

Thursday, 8 March 2018

Most Related:

SOURCE CODE

OUTPUT

Related Topics

Sunday, 4 March 2018

SOURCE CODE

OUTPUT

Related Topics

Saturday, 3 March 2018

Most related

SOURCE CODE

OUTPUT

Related Topics

Most related

SOURCE CODE

OUTPUT

Explanation

Related Topics

SOURCE CODE

OUTPUT

Explanation

Related Topics

Monday, 29 January 2018

PROBLEM STATEMENT:

Wednesday, 12 April 2017

Sunday, 9 April 2017

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