Friday, 26 May 2017

What are merits and demerits of array in C?

Q : What are merits and demerits of array in C?

Why we need an array.

We need array when there is a need to process more than data with similar type. For example 
  • Taking marks of 10 student need of ten integer
  • Taking name need of more than one character
  • Structure record and many more

Write a C program to find size of structure without using sizeof operator.

Q  : Write a C program to find size of structure without using sizeof operator.

#include<stdio.h>
#include<conio.h>
struct stu
{
     int roll;
     char name[20];
     float marks[3];
};

Write a C program to find the square root of a given quadratic equation.

Q1 : Write a C program to find the square root of a given quadratic equation.
#include <math.h>

int main()
{
    double a, b, c, determinant, root1,root2, realPart, imaginaryPart;

    printf("Enter coefficients a, b and c: ");
    scanf("%lf %lf %lf",&a, &b, &c);

    determinant = b*b-4*a*c;

Wednesday, 24 May 2017

Write a C program to print given number of terms of a Fibonacci series.

Q 1 :  Write a C program to print given number of terms of a Fibonacci series.

Solution : 

#include<stdio.h>
void main()
{
    int a,b,c;
   c=1;
   a=0;

Write a C program to read a line and print it reverse using recursive function.

Q : Write a C program to read a line and print it reverse using recursive function.

Solution : 


#include<stdio.h>
#include<string.h>
#include<process.h>
void print(int len,char str[])
{
int n=len;
if(n==-1)
exit(1);

Sunday, 7 May 2017

Call by value Call by reference



Call by value

The call by value method of passing arguments to a function copies the actual value of an argument into the formal parameter of the function. In this case, changes made to the parameter inside the function have no effect on the argument.

Wednesday, 3 May 2017

Customized web page print using Java Script




Printing a webpage is another important aspect of web development. If you skip this section then when your user will be print a page then it will print as it is, which not good for all case because we add a lot of formatting images on webpage. So all the things on the page will get printed that will be worse.

Customizing web page output is good practice to make a webpage. Because what we see on web page we don’t need to take output on paper same format so customization is mandatory.


Following example will print table as with custom header.


Roll Name City
101 Sona Vns
102 Amit Alld
103 Sumi Alld
104 Rakesh Vns
105 Jyoti alld