Tuesday, 30 June 2020

Substring program without library function | C Language

Q : Write a ‘C’ Program to find substring of string without using Library Function.

Answer :

#include<stdio.h>

#include<conio.h>

#define MAX 50

/*============================

Girfa Student Help

Substring wihout using library function

==============================*/

Raj Kumar

A programmer and Founder of Girfa IT Services, working from 2009.At Starting computer teaching was my full-time job but after 10 years of teaching I chose to programming as a full-time job and teaching become part-time. In real life, I am very lazy and I made it my coding style I always try to make a reusable component that’s my USP for programming which saves my time and extra working both.

Sunday, 28 June 2020

Sum of lower triangular program | C language

Q : Write a ‘C’ Program to find Sum of lower triangular elements in a matrix.

Answer :

Lower triangular

Lower triangular matrix is a special square matrix whole all elements above the main diagonal is zero.

Raj Kumar

Delete a number by given position from array program | C Language

Q : Write a program to delete an element from a given location of an array of integers.

Answer :

#include<stdio.h>

#include<conio.h>

#define MAX 50

/*============================

Girfa Student Help

Remove from array by given index

==============================*/

Raj Kumar

Link List vs Array

Q :Define array and link list. Give one example for each showing its usage

Answer :

Define Link List

struct node

{

int data;

struct node *next;

}

int ar[5];

Raj Kumar

Saturday, 27 June 2020

Whatsapp button for website

Add whatsup button at bottom right side of your website. Button will show when user scroll down because it can disturb your home page opening view. When user will click on whatsapp button it will redirect to whatsapp message mode to the given number.

<style>

/* ========= CSS ==========*/

.g-whatsapp {

display: none;

position: fixed;

bottom: 20px;

right: 30px;

z-index: 99;

cursor: pointer;

}

</style>

Raj Kumar

Friday, 26 June 2020

Even number print using function

Q : Write a function in ‘C’ to print even numbers from 1 to 100.

Answer :

#include<stdio.h>

#include<conio.h>

/*============================

Girfa Student Help

print even no. 1-100 using function

==============================*/

void print();

void main()

{

Raj Kumar

Paragraph input using scanf

Q : Write a ‘C’ program in which a scanf() function can read a complete paragraph of text.

Answer :

#include<stdio.h>

#include<conio.h>

/*============================

Girfa Student Help

Paragraph input using scanf

==============================*/

void main()

{

Raj Kumar

Tuesday, 23 June 2020

ABC Pattern

Q : Write a program to print the following pattern?

#include<stdio.h>

#include<conio.h>

/*=========================

Girfa Student Help

Pattern program

==========================*/

Raj Kumar

Bootstrap Corousel

<html>

<head>

<title>Corousel</title>

</head>

Raj Kumar

Monday, 22 June 2020

String Handling C Language

String

In C programming, a string is a sequence of one or more than any characters terminated with a null character. In C language you can only save string in one dimensional character array , no separate data type for string like java or c#.

Declare a string

char str = "GIRFA";

Compiler will create an array of 6 element one extra cell for null character which is used to detect end of string.

Input/Output

char str[10];

printf("Enter string>>");

scanf("%s", str);

for (i = 1; i<str[i] != '\0'; i++)

printf("%c", str[i]);

This example shows you input a string without space and process each character.

char str[10];

printf("Enter string>>");

gets(str);

puts(str);

This example shows how to input space and print using library function.

C language compiler has reach variety of string handling functions string.h library file. Some popular function examples are given below.

1 strcpy

Copy a string into other

Declaration:

char *strcpy(char *dest, const char *src);

char far * _fstrcpy(char far *dest, const char far *src);

Remarks:

Copies string src to dest, stopping after the terminating null character has

been moved.

int main(void)

{

char string[10];

char *str1 = "abcdefghi";

strcpy(string, str1);

printf("%s\n", string);

return 0;

}

2. Strlen

Calculates length of a string

Declaration:

size_t strlen(const char *s);

size_t far _fstrlen(const char far *s);

Remarks:

strlen calculates the length of s.

Return Value:

Returns the number of characters in s, not counting the terminating null

character.

int main(void)

{

char *string = "Borland International";

printf("%d\n", strlen(string));

return 0;

}

3. strcat

Appends one string to another

Declaration:

char *strcat(char *dest, const char *src);

char far * far _fstrcat(char far *dest, const char far *src);

Remarks:

strcat appends a copy of src to the end of dest. The length of the resulting

string is strlen(dest) + strlen(src).

int main(void)

{

char destination[25];

char *blank = " ", *c = "C++", *turbo = "Turbo";

strcpy(destination, turbo);

strcat(destination, blank);

strcat(destination, c);

printf("%s\n", destination);

return 0;

}

4.strcmp

strcmp compare two strings

Declaration:

int strcmp(const char *s1, const char*s2);

Remarks:

strcmp performs an unsigned comparison of s1 to s2. _fstrcmp is the far

version.

Return Value:

These routines return an int value that is

< 0 if s1 < s2

== 0 if s1 == s2

> 0 if s1 > s2

int main(void)

{

char *buf1 = "aaa", *buf2 = "bbb", *buf3 = "ccc";

int ptr;

ptr = strcmp(buf2, buf1);

if (ptr > 0)

printf("buffer 2 is greater than buffer 1\n");

else

printf("buffer 2 is less than buffer 1\n");

ptr = strcmp(buf2, buf3);

if (ptr > 0)

printf("buffer 2 is greater than buffer 3\n");

else

printf("buffer 2 is less than buffer 3\n");

return 0;

}

5. strrev

Reverses all characters in s (except for the terminating null)

Declaration:

char *strrev(char *s);

char far * far _fstrrev(char far *s);

Remarks:

strrev and _fstrrev changes all characters in a string to reverse order,

except the terminating null character.

For example, it would change

string\0

gnirts\0.)

Return Value:

strrev returns a pointer to the reversed string.

int main(void)

{

char *string = "Borland International";

printf("string prior to strlwr: %s\n", string);

strlwr(string);

printf("string after strlwr: %s\n", string);

return 0;

}

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Raj Kumar

Sunday, 21 June 2020

File C Language

File

A computer file is a computer resource for recording data discretely in a computer storage device. Just as words can be written to paper, so can information be written to a computer file. Files can be edited and transferred through the internet on that particular computer system.

Raj Kumar

Saturday, 20 June 2020

Sum of digit program C language

Q : Write a program to find the sum of the digits of a number.

Answer :

#include<stdio.h>

#include<conio.h>

/*##########################

Girfa Student Help

Sum of digits of a number

##########################*/

void main()

{

Raj Kumar

Difference between = and == operator C Language

Assignment Operator

= is an assignment operator which transfer right hand variable value to left hand side variable with over right mode.

int i=1,j=2;

Raj Kumar

Friday, 19 June 2020

Prime number program 1 to 100

Q : Write a program to print all prime numbers from 1 to 100. Use nested loops, break or continue statement wherever necessary.

Answer :

#include<stdio.h>

#include<conio.h>

/*##########################

Girfa Student Help

Prime number 1 to 100

##########################*/

Raj Kumar

Pages

Tuesday, 30 June 2020

Sunday, 28 June 2020

Q : Write a ‘C’ Program to find Sum of lower triangular elements in a matrix.

Answer :

Lower triangular

Q : Write a program to delete an element from a given location of an array of integers.

Answer :

Q :Define array and link list. Give one example for each showing its usage

Define Link List

Saturday, 27 June 2020

Friday, 26 June 2020

Q : Write a function in ‘C’ to print even numbers from 1 to 100.

Answer :

Q : Write a ‘C’ program in which a scanf() function can read a complete paragraph of text.

Answer :

Tuesday, 23 June 2020

Monday, 22 June 2020

String

Input/Output

1 strcpy

2. Strlen

3. strcat

4.strcmp

5. strrev

Sunday, 21 June 2020

File

Saturday, 20 June 2020

Q : Write a program to find the sum of the digits of a number.

Answer :

Difference between = and == operator C Language

Assignment Operator

Friday, 19 June 2020

Q : Write a program to print all prime numbers from 1 to 100. Use nested loops, break or continue statement wherever necessary.

Answer :