Practical file C · Web view2013/12/16 · The first program shows the reverse of a...

INTRODUCTION TO COMPUTERS & PROGRAMMING IN C

PRACTICAL FILE

SUBMITTED TO: PREPARED BY:

Ms. Parul Bhatia Kalra RAVITEJ SINGH REKHI

SECTION: 2-ECE 2

ENROLL NO: A2305113100

AMITY SCHOOL OF ENGINEERING AND TECHNOLOGY

AMITY UNIVERSITY CAMPUS, SECTOR-125, NOIDA-201303

Experime

nt No.

Name of Experiment Date of allotment of experiment

Date of Evaluation

Max. Marks

Marks

obtained

Sign

1

2

3

4

5

6

7

8

9

10

INDEXEXPERIMENT 1

DATE: 16/12/13OBJECTIVE: Write a program to find the sum of two numbers. Calculate the average of number.SOFTWARE USED: Turbo C

PROCEDURE:#include<conio.h>#include<stdio.h>void main(){clrscr();float a,b;printf("Enter First number: ");scanf("%f",&a);printf("Enter Second number : ");scanf("%f",&b);printf("The sum of the numbers is : %fm",a+b);printf("\nThe average of numbers is : %f",(a+b)/2);getch();}

OBSERVATIONS AND DISCUSSIONS:

1)C Language supports arithmetic operators like addition, division etc. as used above.2)Format specifier for float is %f.3)printf() function is used to print the “character, string, float, integer, octal and hexadecimal values” onto the output screen.scanf() function is used to read character, string, numeric data from keyboard.4)To generate a newline,we use “\n” in C printf() statement.5)stdio.h: Most of the C input/output functions are defined in stdio.hconio.h: is a C header file used in MS-DOS compilers for performing "console input and output " from a program.

OUTPUT:

CONCLUSIONS:

The program shows the sum of 2 numbers and their average by using arithmetic operators.

SIGNATURE:

EXPERIMENT 2DATE: 23/12/13OBJECTIVE: Write a program to find a area of triangle using hero’s formula.

SOFTWARE USED: Turbo C

PROCEDURE:#include<conio.h>#include<stdio.h>#include<math.h>void main(){clrscr();float e,a,b,c,d,s;printf("Enter sides of triangle :\n");printf("Side a = ");scanf("%f",&a);printf("Side b = ");scanf("%f",&b);printf("Side c = ");scanf("%f",&c);s=(a+b+c)/2;d=s*(s-a)*(s-b)*(s-c);e=sqrt(d);printf("\nArea of triangle is %f",e);getch();


1)C Language supports arithmetic operators like addition, division etc. as used above.2)Format specifier for float is %f.3)Values can be declared while initializing.4)printf() function is used to print the “character, string, float, integer, octal and hexadecimal values” onto the output screen.scanf() function is used to read character, string, numeric data from keyboard.5)To generate a newline,we use “\n” in C printf() statement.6)stdio.h: Most of the C input/output functions are defined in stdio.hmath.h, it provides many useful functions such as cos,sin...,log,mod,pow etc.

OUTPUT:

CONCLUSION:

The program shows the area of triangle by using arithmetic operators and functions use in maths like sqrt etc., defined in math.h.

SIGNATURE:

EXPERIMENT 3DATE: 6/1/14OBJECTIVE: Write a program to check number is prime or not.


PROCEDURE:#include<conio.h>#include<stdio.h>void main(){clrscr();int a,i,j,k=0;printf("\nEnter a number to check whether it is prime or composite : ");scanf("%d",&a);j=a-1;for (i=2;i<=j;i++)

{if(a%i==0)

{ k=1;}

}if(k==1)

{printf("The number is composite");}

else{printf("The number is prime");}

getch();}

OBSERVATIONS AND DISCUSSIONS:1)C Language supports arithmetic operators like addition, division etc. as used above.2)Format specifier for float is %f.

3)Values can be declared while initializing.4)printf() function is used to print the “character, string, float, integer, octal and hexadecimal values” onto the output screen.scanf() function is used to read character, string, numeric data from keyboard.5)To generate a newline,we use “\n” in C printf() statement.6)stdio.h: Most of the C input/output functions are defined in stdio.h7)C language also supports logical operators like ==,<,> etc as used above.8)It can also perform if, if else and else statements.9)The “for loop” loops from one number to another number and increases by a specified value each time.

OUTPUT:

CONCLUSIONS:

The program shows whether the number is prime or not. For loop has been used.

SIGNATURE:

EXPERIMENT 4DATE: 13/1/14OBJECTIVE: Write a program to reverse a number and sum of digit of number.


PROCEDURE:#include<conio.h>#include<stdio.h>void main(){clrscr();int a,b,c=0,d=0printf("Enter a number : ");scanf("%d",&a);printf("\nThe reverse of no is : ");for(a;a!=0;a=a/10) { b=a%10; c=c+b; printf("%d",b); }printf("\nThe sum of digits is : %d",c);getch();}

OBSERVATIONS AND DISCUSSIONS:1)C Language supports arithmetic operators like addition, division etc. as used above.2)Format specifier for integer is %d.3)Values can be declared while initializing.4)printf() function is used to print the “character, string, float, integer, octal and hexadecimal values” onto the output screen.scanf() function is used to read character, string, numeric data from keyboard.5)To generate a newline,we use “\n” in C printf() statement.6)stdio.h: Most of the C input/output functions are defined in stdio.h7)C language also supports logical operators like ==,<,> etc as used above.8)The while loop can also be used if you don’t know how many times a loop must run.

OUTPUT:

CONCLUSION:The first program shows the reverse of a number and the sum of digits based on arithmetic operations since / displays only quotient while % displays only remainder.

SIGNATURE:

EXPERIMENT 5DATE: 20/1/14OBJECTIVE: Find the factorial of a number using function


PROCEDURE:#include<conio.h>#include<stdio.h>void main(){clrscr();void fact();fact();getch();}void fact(){int a,b,c=1;printf("Enter a number : ");scanf("%d",&a);for(b=1;b<=a;b++){ c=c*b;}printf("The factorial of number is: %d",c);};


1)C Language supports arithmetic operators like addition, division etc. as used above.2)Format specifier for float is %f.3)Values can be declared while initializing.4)printf() function is used to print the “character, string, float, integer, octal and hexadecimal values” onto the output screen.scanf() function is used to read character, string, numeric data from keyboard.5)To generate a newline,we use “\n” in C printf() statement.6)stdio.h: Most of the C input/output functions are defined in stdio.h7)C language also supports logical operators like ==,<,> etc as used above.8)It can also perform if, if else and else statements.

9)The “for loop” loops from one number to another number and increases by a specified value each time.10)A function calling itself is called the recursion .11)Use of user define function to reduce the complexity or a big program.

OUTPUT

CONCLUSION:The program shows the factorial of a number and also by defining its arithmetic operation in another or user define function.

SIGNATURE:

EXPERIMENT 6DATE: 27/1/14OBJECTIVE: Write a program to display elements of array


PROCEDURE:#include<stdio.h>#include<conio.h>void main(){clrscr();int i,j,num[2][2];for(i=0;i<2;i++)

{for(j=0;j<2;j++)

{printf("Enter a value for %d%d place ",i,j);scanf("%d",&num[i][j]);}

}for(i=0;i<2;i++)

{for(j=0;j<2;j++)

{printf("You entered %d for %d%d place.\n",num[i][j],i,j);}

}getch();}


1)C Language supports arithmetic operators like addition, division etc. as used above.2)Format specifier for float is %f.3)Values can be declared while initializing.4)printf() function is used to print the “character, string, float, integer, octal and hexadecimal values” onto the output screen.scanf() function is used to read character, string, numeric data from keyboard.

5)To generate a newline,we use “\n” in C printf() statement.6)stdio.h: Most of the C input/output functions are defined in stdio.h7)C language also supports logical operators like ==,<,> etc as used above.8)It can also perform if, if else and else statements.9)The “for loop” loops from one number to another number and increases by a specified value each time.

OUTPUT:

CONCLUSION:The program displays the elements of array ussing the function of array and for loop.

SIGNATURE:

EXPERIMENT 7DATE: 27/1/14OBJECTIVE: Write a program to calculate area of circle


PROCEDURE:

#include<stdio.h>

#include<conio.h>

void main()

{

float radius,area;

clrscr(); // Clear Screen

printf("Enter the radius of Circle : ");

scanf("%d",&radius);

area = 3.14 * radius * radius;

printf("Area of Circle : %f",area);

getch();

}


1)C Language supports arithmetic operators like addition, division etc. as used above.2)Format specifier for float is %f.3)Values can be declared while initializing.4)printf() function is used to print the “character, string, float, integer, octal and hexadecimal values” onto the output screen.scanf() function is used to read character, string, numeric data from keyboard.5)To generate a newline,we use “\n” in C printf() statement.6)stdio.h: Most of the C input/output functions are defined in stdio.h7)C language also supports logical operators like ==,<,> etc as used above.8)It can also perform if, if else and else statements.9)The “for loop” loops from one number to another number and increases by a specified value each time.

OUTPUT:

Enter the radius of Circle : 2.0

Area of Circle : 12.56

CONCLUSION:The program calculates the area of a circle

SIGNATURE:

EXPERIMENT 8DATE: 27/1/14OBJECTIVE: Write a program to calculate area of rectangle


PROCEDURE:

#include<stdio.h>

#include<conio.h>

void main()

{

int length,breadth,side;


printf("Enter the Length of Rectangle : ");

scanf("%d",&length);

printf("Enter the Breadth of Rectangle : ");

scanf("%d",&breadth);

area = length * breadth;

printf("Area of Rectangle : %d",area);

getch();

}



OUTPUT:

Enter the Length of Rectangle : 5

Enter the Breadth of Rectangle : 4

Area of Rectangle : 20

CONCLUSION:The program calculates the area of a rectangle

SIGNATURE:

EXPERIMENT 9DATE: 27/1/14OBJECTIVE: Write a program to calculate area of square


PROCEDURE:

#include<stdio.h>

#include<conio.h>

void main()

{

int side,area;


printf("nEnter the Length of Side : ");

scanf("%d",&side);

area = side * side ;

printf("nArea of Square : %d",area);

getch();

}



OUTPUT:

Enter the Length of Side : 5

Area of Square : 25

CONCLUSION:The program calculates the area of a square

SIGNATURE:

EXPERIMENT 10DATE: 04/2/14OBJECTIVE: Write a program to compute sum of the array elements using pointers


PROCEDURE:#include<stdio.h>

#include<conio.h>

void main()

{

int a[10];

int i,sum=0;

int *ptr;

printf("Enter 10 elements:n");

for(i=0;i<10;i++)

scanf("%d",&a[i]);

ptr = a; /* a=&a[0] */

for(i=0;i<10;i++)

{

sum = sum + *ptr; //*p=content pointed by 'ptr'

ptr++;

}

printf("The sum of array elements is %d",sum);

}



OUTPUT:

Enter 10 elements : 11 12 13 14 15 16 17 18 19 20

The sum of array elements is 155

CONCLUSION:The program computes sum of the array elements using pointers

SIGNATURE:

EXPERIMENT 11DATE: 04/2/14

OBJECTIVE: Write a program to find greatest in 3 numbers



#include<conio.h>

void main()

{

int a,b,c;

clrscr();

printf("nEnter value of a, b & c: ");

scanf("%d %d %d",&a,&b,&c);

if((a>b)&&(a>c))

printf("na is greatest");

if((b>c)&&(b>a))

printf("nb is greatest");

if((c>a)&&(c>b))

printf("nc is greatest");

getch();

}



OUTPUT:Enter value for a,b & c : 15 17 21

c is greatest

CONCLUSION:The program computes greatest of 3 numbers

SIGNATURE:

EXPERIMENT 12DATE: 04/2/14OBJECTIVE: Write a program to reverse a given number



#include<conio.h>

void main()

{

int num,rem,rev=0;

clrscr();

printf("nEnter any no to be reversed : ");

scanf("%d",&num);

while(num>=1)

{

rem = num % 10;

rev = rev * 10 + rem;

num = num / 10;

}

printf("nReversed Number : %d",rev);

getch();

}



OUTPUT:Enter any no to be reversed : 123

Reversed Number : 321

CONCLUSION:The program reverses a given no.

SIGNATURE:


OBJECTIVE: Write a program to calculate sum of 5 subjects and find percentage



#include<conio.h>

void main()

{

int s1,s2,s3,s4,s5,sum,total=500;

float per;

clrscr();

printf("nEnter marks of 5 subjects : ");

scanf("%d%d%d%d%d",&s1,&s2,&s3,&s4,&s5);

sum = s1 + s2 + s3 + s4 + s5;

printf("nSum : %d",sum);

per = (sum * 100) / total;

printf("nPercentage : %f",per);

getch();

}



OUTPUT:

Enter 10 elements : 11 12 13 14 15 16 17 18 19 20

The sum of array elements is 155


SIGNATURE:

EXPERIMENT 14DATE: 11/2/14OBJECTIVE: Write a program to calculate sum of 5 subjects and find percentage



#include<conio.h>

void main()

{

int s1,s2,s3,s4,s5,sum,total=500;

float per;

clrscr();

printf("nEnter marks of 5 subjects : ");

scanf("%d%d%d%d%d",&s1,&s2,&s3,&s4,&s5);

sum = s1 + s2 + s3 + s4 + s5;

printf("nSum : %d",sum);

per = (sum * 100) / total;

printf("nPercentage : %f",per);

getch();

}



OUTPUT:Enter marks of 5 subjects : 80 70 90 80 80

Sum : 400

Percentage : 80.00

CONCLUSION:The program calculates sum of 5 subjects and find percentage

SIGNATURE:

EXPERIMENT 15DATE: 11/2/14OBJECTIVE: Write a program to find factorial using recursion



#include<conio.h>

int fact(int);

void main()

{

int x,n;

printf("nEnter the value of n :");

scanf("%d",&n);

x=fact(n);

printf("n%d",x);

getch();

}

int fact(int n)

{

if(n==0)

return(1);

return(n*fact(n-1));

}



OUTPUT:

CONCLUSION:The program finds factorial using recursion

SIGNATURE:


OBJECTIVE: Write a program to compute Armstrong Number (When Sum of Cubes of Digits Of Number Equal to Same Given Number then the number is called as Armstrong Number)


PROCEDURE:#include<stdio.h>int main(){int num,temp,sum=0,rem;

printf("nEnter Number For Checking Armstrong : ");scanf("%d",&num);

temp = num;

while (num != 0) { rem = num % 10; sum = sum + (rem*rem*rem); num = num / 10;

}

if(temp == sum) printf("n%d is Amstrong Number",temp);else printf("n%d is Amstrong Number",temp);return(0);}



OUTPUT:Enter Number For Checking Armstrong : 153153 is Amstrong Number

{153 = [1*1*1] + [5*5*5] + [3*3*3] = 1 + 125 + 27 = 153}


SIGNATURE:


OBJECTIVE: Write a program to check Whether Number is Prime or not


PROCEDURE:#include<stdio.h>int main(){ int num,i,count=0; printf("nEnter a number:"); scanf("%d",&num); for(i=2;i<=num/2;i++){ if(num%i==0){ count++; break; } } if(count==0) printf("%d is a prime number",num); else printf("%d is not a prime number",num); return 0;}



CONCLUSION:The program finds prime no.

SIGNATURE:EXPERIMENT 18

DATE: 18/2/14OBJECTIVE: Write a program to Swap two no’s without using third variable


PROCEDURE:#include<stdio.h>#include<conio.h>

void main(){int a,b;

clrscr();

printf("nEnter value for num1 & num2 : ");scanf("%d %d",&a,&b);

a=a+b;b=a-b;a=a-b;

printf("nAfter swapping value of a : %d",a);printf("nAfter swapping value of b : %d",b);

getch();

}



OUTPUT:Enter value for num1 & num2 : 10 20

After swapping value of a : 20After swapping value of b : 10


SIGNATURE:

EXPERIMENT 19DATE: 18/2/14OBJECTIVE: Write a program to print first 10 natural no.s


PROCEDURE:

Using For Loop

#include<stdio.h>#include<conio.h>void main(){int i=1;clrscr();for(i=1;i<=10;i++) printf("%d",i);getch();}Using While Loop

#include<stdio.h>#include<conio.h>void main()

{int i=1;clrscr();while(i<=10) { printf("%d",i); i++; }getch();}

Using Do-While Loop

#include<stdio.h>#include<conio.h>void main(){int i=1;clrscr();do{ printf("%d",i); i++; }while(i<=10);getch();}



OUTPUT: The first 10 natural no.s are displayed

CONCLUSION:

The program finds factorial using recursion

SIGNATURE:

EXPERIMENT 20DATE: 18/2/14OBJECTIVE: Write a program to do Addition of All Elements of the Array



void main(){ int i,a[50],sum,n; printf("nEnter no of elements :"); scanf("%d",&n);

/* Reading values into Array */

printf("nEnter the values :"); for(i=0;i < n;i++) scanf("%d",&a[i]);

/* computation of total */

sum=0;

for(i=0;i < n;i++) sum=sum+a[i];

/* printing of all elements of array */

for(i=0;i < n;i++) printf("na[%d]=%d",i,a[i]);

/* printing of total */

printf("nSum=%d",sum);}}



CONCLUSION:The program to add all elements of the array

SIGNATURE:

EXPERIMENT 21DATE: 25/2/14OBJECTIVE: Write a program to Find Smallest Element in Array in C Programming


PROCEDURE:// ------------------------------------------------------// Title : Find out smallest Number From Array// smallest - It Stores the smallest number// ------------------------------------------------------

#include<stdio.h>#include<conio.h>void main(){ int a[30],i,n,smallest;

printf("n Enter no of elements :"); scanf("%d",&n);

/* read n elements in an array */ for(i=0 ; i < n ; i++) scanf("%d",&a[i]);

smallest = a[0];

for(i = 0 ;i < n ; i++) { if ( a[i] < smallest ) smallest = a[i]; }

/* Print out the Result */

printf("nSmallest Element : %d",smallest);

getch();}



CONCLUSION:The program finds smallest no. from array

SIGNATURE:

EXPERIMENT 22DATE: 25/2/14OBJECTIVE: Write a program to Find Largest Element in Array in C Programming


PROCEDURE:// ------------------------------------------// Title : Find out Largest Number From Array// Largsest - It Stores the Largest number// ------------------------------------------#include<stdio.h>#include<conio.h>void main() { int a[30],i,n,largest;



largest = a[0];

for(i = 0;i<n;i++) { if(a[i] > largest ) largest = a[i]; }

/* Print out the Result */ printf("nLargest Element : %d",largest); getch();}



CONCLUSION:The program finds largest element in array

SIGNATURE:

EXPERIMENT 23DATE: 25/2/14OBJECTIVE: Write a program to Reverse an Array Elements in C Programming



void main(){ int a[30],i,j,n,temp;



j = i-1; // j will Point to last Element i = 0; // i will be pointing to first element

while(i < j)

{ temp = a[i]; a[i] = a[j]; a[j] = temp; i++; // increment i and decrement j j--; } /* Print out the Result of Insertion */

for(i = 0 ;i< n ;i++) printf("n %d",a[i]);

getch();}



CONCLUSION:The program reverses array elements

SIGNATURE:

EXPERIMENT 24DATE: 4/3/14OBJECTIVE: Write a program to find Transpose of Given Square Matrix


PROCEDURE:#include<stdio.h>#include<conio.h>void main(){ int a[10][10],m,i,j,temp; /* actual size of matrix is m*n i,j - for scanning of array temp - for interchanging of a[i][j] and a[j][i] */

printf("n Enter the size of matrix :"); scanf("%d",&m);

/* Reading elements of matrix */

printf("n Enter the values a:");

for(i=0;i<m;i++) for(j=0;j<m;j++)

scanf("%d",&a[i][j]);

//to print original square matrix

printf("nGiven square matrix is");

for(i=0;i<m;i++) { printf("n"); for(j=0 ; j 〈 m ; j++) printf("%dt",a[i][j]); } /* Find transpose */

for(i=1;i<m;i++) for(j=0;j<i;j++) { temp=a[i][j]; a[i][j]=a[j][i]; a[j][i]=temp; } /* printing of all elements of final matrix */

printf("nTranspose matrix is :");

for(i=0;i 〈 m;i++) { printf("n"); for(j=0;j<m;j++) printf("%dt",a[i][j]); } getch();}



OUTPUT:


SIGNATURE:

EXPERIMENT 25DATE: 4/3/14OBJECTIVE: Write a program to Multiply Two 3 X 3 Matrices



void main(){int a[10][10],b[10][10],c[10][10],i,j,k;int sum=0;clrscr();

printf("nEnter First Matrix : n");

for(i=0;i<3;i++) { for(j=0;j<3;j++)

scanf("%d",&a[i][j]); }

printf("nEnter Second Matrix:n");for(i=0;i<3;i++) { for(j=0;j<3;j++) scanf("%d",&b[i][j]); }

printf("The First Matrix Is:n");

for(i=0;i<3;i++)//print the first matrix { for(j=0;j<3;j++) printf(" %d ",a[i][j]); printf("n"); }

printf("The Second Matrix Is:n");

for(i=0;i<3;i++) // print the second matrix { for(j=0;j<3;j++) printf(" %d ",b[i][j]); printf("n"); }

for(i=0;i<=2;i++) for(j=0;j<=2;j++) { sum = 0; for(k=0;k<=2;k++) sum = sum + a[i][k] * b[k][j]; c[i][j]=sum; }

printf("nMultiplication Of Two Matrices :nn");

for(i=0;i<3;i++){ for(j=0;j<3;j++) printf(" %d ",c[i][j]);printf("n");}

getch();}



CONCLUSION:The program multiplies two 3x3 matrices

SIGNATURE:


OBJECTIVE: Write a program to sort set of strings in alphabetical order


PROCEDURE:#include<stdio.h>#include<string.h>void main(){char s[5][20],t[20];int i,j;clrscr();printf("Enter any five strings : n");for(i=0;i<5;i++) scanf("%s",s[i]);

for(i=1;i<5;i++)

{ for(j=1;j<5;j++) { if(strcmp(s[j-1],s[j])>0) { strcpy(t,s[j-1]); strcpy(s[j-1],s[j]); strcpy(s[j],t); } } }

printf("Strings in order are : ");for(i=0;i<5;i++) printf("n%s",s[i]);getch();}



OUTPUT:Enter any five strings :pripraprupryprnStrings in order are :prapriprn

prupry


SIGNATURE:

EXPERIMENT 27DATE: 4/3/14OBJECTIVE: Write a program to find Length of the String using Pointer


PROCEDURE: #include<stdio.h>#include<conio.h>int string_ln(char*);void main(){ char str[20]; int l; clrscr(); printf("Enter any string:n"); gets(str); l=string_ln(str); printf("The length of the given string %s is : %d",str,l);

getch();}int string_ln(char*p) /* p=&str[0] */{ int count=0; while(*p!='') { count++; p++; } return count;}



OUTPUT: Enter the String : apaarLength of the given string apaar is : 5

CONCLUSION:The program finds length of string

SIGNATURE:

EXPERIMENT 28DATE: 4/3/14OBJECTIVE: Write a program to Add Two Numbers Using Pointer


PROCEDURE:#include<stdio.h>int main(){int *ptr1,*ptr2;int num;

printf("nEnter two numbers : ");scanf("%d %d",ptr1,ptr2);

num = *ptr1 + *ptr2;

printf("Sum = %d",num);

return(0);}



OUTPUT: Enter two numbers : 2 3Sum = 5

CONCLUSION: The program finds factorial using recursion

SIGNATURE:

EXPERIMENT 29DATE: 11/3/14OBJECTIVE: Write a program to to copy the contents of one file into another using fgetc and

fputc function


PROCEDURE:#include<stdio.h>#include<process.h>

void main(){FILE *fp1,*fp2;char a;clrscr();

fp1=fopen("test.txt","r");

if(fp1==NULL) { puts("cannot open this file"); exit(1); }

fp2=fopen("test1.txt","w");if(fp2==NULL) { puts("Not able to open this file"); fclose(fp1); exit(1); }

do { a=fgetc(fp1); fputc(a,fp2); }while(a!=EOF);

fcloseall();getch();}



OUTPUT: Content will be written successfully to file

CONCLUSION:The program copies contents

SIGNATURE:


OBJECTIVE: Write a program to Find Factorial of Number Using Recursion


PROCEDURE:include<stdio.h>#include<conio.h>int fact(int);void main(){ int x,n; printf("nEnter the value of n :"); scanf("%d",&n); x=fact(n);

printf("n%d",x); getch();}int fact(int n){ if(n==0) return(1); return(n*fact(n-1));}



OUTPUT: Enter the number : 5Factorial of 5 is 120


SIGNATURE:

EXPERIMENT 31DATE: 11/3/14OBJECTIVE: Write a program Function with no arguments and no return value


PROCEDURE: #include<stdio.h>

void area(); // Prototype Declarationvoid main(){area();}

void area(){

http://www.programiz.com/c-programming/types-user-defined-functions#no_no

float area_circle; float rad;

printf("\nEnter the radius : "); scanf("%f",&rad);

area_circle = 3.14 * rad * rad ;

printf("Area of Circle = %f",area_circle);}



OUTPUT: Enter the radius : 3Area of Circle = 28.260000

CONCLUSION:The program executes without return values or arguments

SIGNATURE:


OBJECTIVE: Write a program displaying Function with argument and a return value


PROCEDURE:/* Program to check whether a number entered by user is prime or not using function with argument and return value */#include <stdio.h>int check(int n);int main(){ int num,num_check=0; printf("Enter positive enter to check:\n"); scanf("%d",&num);

num_check=check(num); /* Argument num is passed to check() function. */ if(num_check==1) printf("%d in not prime",num); else printf("%d is prime",num); return 0;}int check(int n){ /* Integer value is returned from function check() */ int i; for(i=2;i<=n/2;++i){ if(n%i==0) return 1;} return 0;}



CONCLUSION:The program uses argument and return values

SIGNATURE:

Practical file C · Web view2013/12/16 · The first program shows the reverse of a...

Documents

Transcript of Practical file C · Web view2013/12/16 · The first program shows the reverse of a...