C Program For Structure and Union

Top Structure and Union C Program

C Program for Structure and Union

C Program for Structure

C program to accessing members of the structure (Operations on individual members)-Method-1

#include <stdio.h>

#include <stdlib.h>

#include<string.h>

struct std

{ 

  int roll_no;  

  char name[10];

  }student={4,"Ram"};

 int main()

{          

 printf("Roll number=%d\n",  student .roll_no);

 printf("student name=%s",  student .name);  

 return 0;

}

C program to accessing members of the structure (Operations on individual members)-Method-2

#include <stdio.h>

#include <stdlib.h>

#include<string.h>

struct std

{ 

  int roll_no; 

  char name[10];

};

int main()

{

 struct std student ={4,"Ram"};

 printf("Roll number=%d\n",  student .roll_no);    

 printf("student name=%s",  student .name);   

return 0;

}

C program to accessing members of the structure (Operations on individual members)-Method-3

#include <stdio.h>

#include <stdlib.h>

#include<string.h>

struct student

{ 

  int roll_no;  

 char name[10];

};

int main()

{      

   struct student std;

printf("Enter a Roll Number");

scanf("%d",&std.roll_no);

printf("Enter name");

scanf("%s",&std.name);

printf("Roll number=%d\n", std.roll_no);     

printf("student name=%s", std.name);   

return 0;

}

C Program  to print sum of two number using structure (

Operations on Structures through individual members )-Method-1

#include <stdio.h>

#include <stdlib.h>

struct add

{ 

  int foot;

   int inch;

} sum={4,8};

int main()

{

   int sum1;       

   sum1=sum.foot+sum.inch;

   printf("addition of two number=%d", sum1);   

   return 0;

}

C Program  to print sum of two number using structure (

Operations on Structures through individual members )-Method-2

#include <stdio.h>

#include <stdlib.h>

struct add

{

   int foot; 

  int inch;

};

struct add sum={4,8};

int main()

{  

 int sum1;            

    sum1=sum.foot+sum.inch; 

 printf("addition of two number=%d", sum1); 

return 0;

}

C Program  to print sum of two number using structure (Operations on Structures

 through individual members )-Method-3

#include <stdio.h>

#include <stdlib.h>

struct add

{ 

  int foot;

   int inch;

};

int main()

{   

int sum1;    

  struct add sum={4,8};

  sum1=sum.foot+sum.inch; 

  printf("addition of two number=%d", sum1);  

 return 0;

}

C Program  to print sum of two number using structure (

Operations on Structures through individual members )-Method-4

#include <stdio.h>

#include <stdlib.h>

struct add

{    int foot; 

   int inch;

};

int main()

{  

 int sum1;  

 struct add sum;  

 printf("Enter feet: ");   

scanf("%d", &sum.foot);  

 printf("Enter inch: ");   

scanf("%d", &sum.inch);   

sum1=sum.foot+sum.inch;   

printf("addition of two number=%d", sum1);   

return 0;

}

C Program  to implement of array using structure-Method-1

#include<stdio.h>

#include<conio.h>

  struct Point

{

   int x, y;

};

  void main()

{

    struct Point array[15];

   array[0].x = 10;

   array[0].y = 20;

   printf("%d %d", array[0].x, array[0].y);

   getch();

}

C Program  to implement of array using structure-Method-2

#include<stdio.h> 

#include<conio.h>

#include <string.h>    

struct student

{    

int roll_no;    

char name[10];    

};    

int main()

{    

int i;    

struct student std[5];    

printf("Enter Records of 5 students");    

for(i=0;i<5;i++)

{    

printf("\nEnter Rollno:");    

scanf("%d",&std[i].roll_no);    

printf("\nEnter Name:");    

scanf("%s",&std[i].name);    

}    

printf("\nStudent Information List:");    

for(i=0;i<5;i++)

{    

printf("\nRollno:%d, Name:%s",std[i].rollno,std[i].name);  

  }    

   return 0;    

}    

C Program  to implement of array using structure for book keeping record-Method-1

#include<stdio.h>

#include<string.h>

#include<conio.h>

struct BookRecord

{

     char book_name[25];

     int pages;

     char author[25];

     float price;

       }b1[4] = {

           {"Book1",700,"YPK“,250.00},

           "Book2",500,"AAK",350.00},

           {"Book3",120,"HST",450.00}

            {"Book3",120,"HST",450.00}

};

void main()

 {

 printf("\nBook Name    : %s",b1[0].bname);

printf("\nBook Pages   : %d",b1[0].pages);

printf("\nBook Author  : %s",b1[0].author);

printf("\nBook Price   : %f",b1[0].price);

 printf("\nBook Name    : %s",b1[1].bname);

printf("\nBook Pages   : %d",b1[1].pages);

printf("\nBook Author  : %s",b1[1].author);

printf("\nBook Price   : %f",b1[1].price);

printf("\nBook Name    : %s",b1[2].bname);

printf("\nBook Pages   : %d",b1[2].pages);

printf("\nBook Author  : %s",b1[2].author);

printf("\nBook Price   : %f",b1[2].price);

getch();

}

C Program  to implement of array using structure for book keeping record-Method-2

#include<stdio.h>

#include<string.h>

#include<conio.h>

struct BookRecord

  {

      char[25] b_name;

      int pages;

      int price;

  }  book[3];

   int main(int argc, char *argv[])

 {

  int i;

   for(i=0;i<3;i++)

    {

   printf("\nEnter the Name of Book    : ");

   gets(book[i].bname);

   printf("\nEnter the Number of Pages : ");

    scanf("%d",book[i].pages);

    printf("\nEnter the Price of Book : ");

   scanf("%f",book[i].price);

    }   

printf("\n---Book Details ----- ");

    for(i=0;i<3;i++)

    {

    printf("\nName of Book    : %s",book[i].bname);

    printf("\nNumber of Pages : %d",book[i].pages);

    printf("\nPrice of Book   : %f",book[i].price);

    }   

return 0;

}

C Program  to implement of array using structure for student information record-Method-1

#include<stdio.h>

#include<conio.h> 

#include<stdlib.h>

struct student 

{ 

    char name[25]; 

    int std_id; 

    float marks; 

}; 

void main() 

{ 

   struct student s1,s2,s3; 

    printf("Enter the name, id, and marks of student 1 "); 

    scanf("%s %d %f",s1.name,&s1.std_id, &s1.marks); 

    printf("Enter the name, id, and marks of student 2 "); 

    scanf("%s %d %f",s2.name,&s2.std_id,&s2.marks); 

    printf("Enter the name, id, and marks of student 3 "); 

    scanf("%s %d %f",s3.name,&s3.std_id,&s3.marks); 

    printf("Printing the details....\n"); 

    printf("%s %d %f\n",s1.name,s1.std_id,s1.marks); 

    printf("%s %d %f\n",s2.name,s2.std_id,s2.marks); 

    printf("%s %d %f\n",s3.name,s3.std_id,s3.marks); 

    getch();

}

C Program to implement of structure using function.

#include <stdio.h>

#include <stdlib.h>

#include<string.h>

struct student

{

char name[30];

int rollno;

int marks;

};

void display(char name[], int rollno, int marks);

int main()

{

struct student std = {"Ram", 1, 88};

display(std.name, std.rollno, std.marks);

return 0;

}

void display(char name[], int rollno, int marks)

{

printf("Name: %s\n", name);

printf("Roll no: %d\n", rollno);

printf("Marks: %d\n", marks);

printf("\n");

}

C Program to access structure members using pointer-Method-1

#include <stdio.h>

#include<conio.h>

struct person

{

   int height;

   float weight;

};

int main()

{

    struct person *Ptr, person1;

    Ptr = &person1;  

    printf("Enter height:");

    scanf("%d", &Ptr->height);

    printf("Enter weight:");

    scanf("%f", &Ptr->weight);

    printf("Displaying:\n");

    printf(" height : %d\n", Ptr-> height );

    printf("weight: %f", Ptr->weight);

    return 0;

}

C Program to access structure members using pointer- Method-2

#include <stdio.h>

#include <conio.h>

struct person

{

   int  height ;

   float weight;

}person1;

int main()

{

    struct person *Ptr;

    Ptr = &person1;  

    printf("Enter  height :");

    scanf("%d", &Ptr-> height );

    printf("Enter weight:");

    scanf("%f", &Ptr->weight);

    printf("Displaying:\n");

    printf(" height : %d\n", Ptr-> height );

    printf("weight: %f", Ptr->weight);

    return 0;

 }

C Program to access structure members using pointer- Method-3

#include<stdio.h>

#include<conio.h>

struct Player

{

    char *team_name;

    int members;

    char captain[30];

}team = {"Austrailia",11,"Mourtin"} , *sptr = &team;

int main()

{

printf("\nTeam : %s",(*sptr).team_name);

printf("\nMemebers : %d",sptr->members);

printf("\nCaptain : %s",(*sptr).captain);

return 0;

}

C Program to access structure members using pointer- Method-4

#include <stdio.h>

#include<conio.h>

#include <string.h>

 struct std

{

     int id;

     char name[50];

     float percentage;

};

int main()

{

     int i;

     struct std record1 = {1, "Ram", 88.63};

     struct std *ptr;

     ptr = &record1;    

         printf("Records of STUDENT1: \n");

         printf("  Id is: %d \n", ptr->id);

         printf("  Name is: %s \n", ptr->name);

         printf("  Percentage is: %f \n\n", ptr->percentage);

     return 0;

}      

 

C Program to accessing structure Using Indirection Operator and Pointer-Method-1

#include <stdio.h>

#include<conio.h>

int main(int argc, char *argv[])

{

struct std

 {

    char name[10];

    int roll;

    int marks;

}stud1 = {"Madhur",70,80};

struct std *ptr;

ptr = &stud1;

printf("Roll Number : %d",(*ptr).roll);

printf("Marks of Student : %d",(*ptr).marks);

return 0;

}

C Program to accessing structure Using Indirection Operator and Pointer-Method-2

#include <stdio.h>

#include<conio.h>

int main(int argc, char *argv[])

{

struct std

 {

    char name[10];

    int roll;

    int marks;

} stud1 = {"Madhur",70,80};

struct std *ptr;

ptr = &stud1;

printf("Roll Number : %d",(ptr)->roll);

printf("Marks of Student : %d",(ptr)->marks);

return 0;

}

C Program to accessing structure Using  Dynamic memory allocation

Method-1

#include <stdio.h>

#include<conio.h>

#include <stdlib.h>

struct person1

{

int age;

float height;

float weight; 

char name[30];

};

int main()

  {  struct person1 *ptr;

      int i, n;

   printf("Enter number of persons: ");

   scanf("%d", &n);

  ptr = (struct person1*) malloc(n*sizeof(struct person1));

  for(i = 0; i < n; ++i)

   {  

   printf("Enter first name and age respectively: ");

   scanf("%s%d", &(ptr+i)->name, &(ptr+i)->age);

   }

   printf("Displaying Information:\n");

   for(i = 0; i < n; ++i)

   printf("Name: %s\t Age: %d\n", (ptr+i)->name, (ptr+i)->age);

   return 0;

  }

C Program for Union

C Program to accessing member using union-Method-1

#include <stdio.h>

#include<conio.h>

union Data1

{

int i;

float f;

char str[20];

};

int main( )

{

union Data1 data;

data.i = 10;

data.f = 220.5;

strcpy( data.str, "C Programming");

printf( "data.i : %d\n", data.i);

 printf( "data.f : %f\n", data.f);

printf( "data.str : %s\n", data.str);

return 0;

 }

C Program to accessing member using union-Method-2

#include <stdio.h>

#include <string.h>

union emp

{

  int Age; 

  char Name[100];

  char Dept[100];

  float Salary;

};

int main()

{

  union emp emp1;

  union emp emp2;

  emp1.Age = 40;

  strcpy(emp1.Name, "Chris");

  strcpy(emp1.Dept, "Science");

  emp1.Salary = 62240.70;

  printf("\nDetails of the First Employee \n");

  printf("  Employee Age = %d \n", emp1.Age);

  printf("  Employee Name = %s \n", emp1.Name);

  printf("  Employee Department = %s \n", emp1.Dept);

  printf("  Employee Salary = %.2f \n\n", emp1.Salary);

  printf("Details of the Second Employee \n" );

  emp2.Age = 20;

  printf("  Employee Age = %d \n", emp2.Age );

  strcpy(emp2.Name, "David");

  printf("  Employee Name = %s \n", emp2.Name );

  strcpy(emp2.Dept, "Technology" );

  printf("  Employee Department = %s \n ", emp2.Dept );

  emp2.Salary = 25700.20;

  printf("  Employee Salary = %.2f \n ", emp2.Salary );

  return 0;

}

C Program to accessing member using union-Method-3

#include <stdio.h>

#include<conio.h>

#include <string.h>

  union Emp

{

   char Name[32];

   int Age;

   float Salary;

};

  int main()

{

   union Emp employee;

   strcpy(employee.Name, "Rahul");

   printf("Name = %s  Address =%p\n", employee.name, &employee.Name);

   employee.Age = 20;

   printf("Age = %d Address =%p\n", employee.age,  &employee.age);

   employee.Salary = 4234.5;

   printf("Salary = %f Address = %p\n", employee.salary, &employee.Salary);

   printf("\nName = %s\n", employee.name);

   printf("Age = %d\n",employee.Age);

   printf("Salary = %f\n",employee.Salary);

       return 0;

}












Introduction to C Language

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