Practical
– List – 4
1. WAP
to demonstrate initialisation of structure.
Program:
#include <stdio.h>
#include <conio.h>
struct Person
{
char name[50];
int age;
float height;
};
void main()
{
clrscr();
struct Person person1 =
{"John", 25, 6.0};
printf("Details of
person1:\n");
printf("Name: %s\n",
person1.name);
printf("Age: %d\n",
person1.age);
printf("Height: %.2f\n",
person1.height);
getch();
}
Output:
Details
of person1:
Name:
John
Age:
25
Height:
6.00
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2. WAP
to take a input from user and print the following details of book using
structure Book name, Author name, Publisher name, pages.
Program:
#include <stdio.h>
#include <conio.h>
struct Book {
char name[100];
char author[100];
char publisher[100];
int pages;
};
void main() {
clrscr();
struct Book book;
printf("Book Name: ");
scanf("%99[^\n]",
book.name); getchar();
printf("Author's name: ");
scanf("%99[^\n]",
book.author); getchar();
printf("Publisher's name:
");
scanf("%99[^\n]",
book.publisher); getchar();
printf("Number of pages:
");
scanf("%d",
&book.pages);
printf("\nDetails of the
book:\n");
printf("Name: %s\n",
book.name);
printf("Author: %s\n",
book.author);
printf("Publisher: %s\n",
book.publisher);
printf("Number of pages:
%d\n", book.pages);
getch();
}
Output:
Book Name:
Atomic Habbit
Author's
name: Jems Clear
Publisher's
name: Random House
Number of
pages: 320
Details of
the book:
Name:
Atomic Habbit
Author:
Jems Clear
Publisher:
Random House
Number of
pages: 320
3. WAP
to declare & initialiser array of structure.
Program:
#include <stdio.h>
#include <conio.h>
struct Book
{
char name[100];
char author[100];
char publisher[100];
int pages;
};
void main()
{
clrscr();
struct Book books[3] = {
{"Atomic
Habits", "James Clear", "Random House", 200},
{"You Can
Win", "Shiv Khera", "Macmillan", 300},
{"Secret",
"Rhonda Byrne", "Simon & Schuster", 250}
};
printf("Details of
books:\n");
for (int i = 0; i < 3; i++)
{
printf("Book
%d:\n", i + 1);
printf("Name:
%s\n", books[i].name);
printf("Author:
%s\n", books[i].author);
printf("Publisher: %s\n", books[i].publisher);
printf("Number of
pages: %d\n", books[i].pages);
printf("\n");
}
getch();
}
Output:
Details
of books:
Book
1:
Name:
Atomic Habits
Author:
James Clear
Publisher:
Random House
Number
of pages: 200
Book
2:
Name:
You Can Win
Author:
Shiv Khera
Publisher:
Macmillan
Number
of pages: 300
Book
3:
Name:
Secret
Author:
Rhonda Byrne
Publisher:
Simon & Schuster
Number
of pages: 250
Please follow me for more practicals....
4. WAP
to read and print the value of ID, name, percentage of 5 students using array
of structure.
Program:
#include <stdio.h>
#include <conio.h>
struct Student
{
int id;
char name[50];
float percentage;
};
void main()
{
clrscr();
struct Student students[5];
printf("Enter details of 5
students:\n");
for (int i = 0; i < 5; i++)
{
printf("\nStudent:
%d\n", i + 1);
printf("ID: ");
scanf("%d", &students[i].id);
printf("Name: ");
scanf("%s",
students[i].name);
printf("Percentage:
");
scanf("%f", &students[i].percentage);
}
printf("\nDetails of students:\n");
for (int i = 0; i < 5; i++)
{
printf("%d\t|",
students[i].id);
}
printf("\n");
for (int i = 0; i < 5; i++)
{
printf("%s\t|",
students[i].name);
}
printf("\n");
for (int i = 0; i < 5; i++)
{
printf("%.2f\t|",
students[i].percentage);
}
printf("\n");
getch();
}
Output:
Enter
details of 5 students:
Student:
1
ID: 1
Name:
Mehdi
Percentage:
96
Student:
2
ID: 2
Name:
Rahul
Percentage:
88
Student:
3
ID: 3
Name:
Arjun
Percentage:
76
Student:
4
ID: 4
Name:
Neha
Percentage:
66
Student:
5
ID: 5
Name:
Anil
Percentage:
82
Details
of students:
1 |2 |3 |4 |5 |
Mehdi |Rahul |Arjun
|Neha
|Anil |
96.00 |88.00 |76.00
|66.00 |82.00
|
5. WAP
to demonstrate the use of pointer to structure.
Program:
#include <stdio.h>
#include <conio.h>
struct Student
{
int id;
char name[50];
float percentage;
};
int main()
{
clrscr();
struct Student student1 = {1, "Mehdiali",
98.6};
struct Student *ptr;
ptr = &student1;
printf("Accessed using pointer:\n");
printf("ID: %d\n", ptr->id);
printf("Name: %s\n", ptr->name);
printf("Percentage: %.2f\n",
ptr->percentage);
getch();
}
Output:
Accessed
using pointer:
ID: 1
Name:
Mehdiali
Percentage:
98.60
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6. WAP
to demonstrate the use of union.
Program:
#include <stdio.h>
#include <conio.h>
#include <string.h>
union Data
{
int integer;
float floating_point;
char string[20];
};
int main()
{
union Data data;
data.integer = 10;
printf("Integer: %d\n",
data.integer);
data.floating_point = 3.14;
printf("Floating Point: %.2f\n",
data.floating_point);
strcpy(data.string, "Hello");
printf("String: %s\n",
data.string);
getch();
}
Output:
Integer: 10
Floating
Point: 3.14
String:
Hello
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7. WAP
to search on element from array of structure.
Program:
#include <stdio.h>
#include <string.h>
struct Student
{
int id;
char name[50];
float percentage;
};
int searchStudentByID(struct Student students[], int
size, int searchID)
{
for (int i = 0; i < size; i++)
{
if (students[i].id == searchID)
{
return i;
}
}
return -1;
}
int main()
{
clrscr();
struct Student students[5] = {
{1, "Mehdi",
98.6},
{2, "Arjun",
88.7},
{3, "Anil", 76.8},
{4, "Neha", 75.6},
{5, "Rahul",
79.6}};
int searchID;
printf("Enter the ID to search:
");
scanf("%d", &searchID);
int index = searchStudentByID(students,
5, searchID);
if (index != -1)
{
printf("\nDetails
of the student:\n");
printf("ID: %d\n",
students[index].id);
printf("Name: %s\n",
students[index].name);
printf("Percentage:
%.2f\n", students[index].percentage);
}
else
{
printf("Student
with ID %d not found.\n", searchID);
}
return 0;
}
Output:
Enter
the ID to search: 1
Details
of the student:
ID: 1
Name:
Mehdi
Percentage:
98.60
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8. WAP
to short element of array of structure.
Program:
#include <stdio.h>
#include <string.h>
struct Student
{
int id;
char name[50];
float percentage;
};
void sortStudentsByPercentage(struct Student students[],
int size)
{
struct Student temp;
for (int i = 0; i < size - 1; i++)
{
for (int j = 0; j <
size - i - 1; j++)
{
if (students[j].percentage
> students[j + 1].percentage)
{
temp = students[j];
students[j] = students[j + 1];
students[j + 1] = temp;
}
}
}
}
int main()
{
clrscr();
struct Student students[5] = {
{101, "Arjun",
85.5},
{102, "Anil",
75.2},
{103, "Mehdi",
90.0},
{104, "Neha",
82.7},
{105, "Rahul",
88.3}};
printf("Details before sorting:\n");
for (int i = 0; i < 5; i++)
{
printf("%d\t %s\t
%.2f\n", students[i].id, students[i].name, students[i].percentage);
}
sortStudentsByPercentage(students, 5);
printf("\nDetails after
sorting:\n");
for (int i = 0; i < 5; i++)
{
printf("%d\t %s\t
%.2f\n", students[i].id, students[i].name, students[i].percentage);
}
return 0;
}
Output:
Details
before sorting:
101 Arjun
85.50
102 Anil
75.20
103 Mehdi
90.00
104 Neha
82.70
105 Rahul
88.30
Details
after sorting:
102 Anil
75.20
104 Neha
82.70
101 Arjun
85.50
105 Rahul
88.30
103 Mehdi
90.00
Please follow me for more practicals....
9. WAP
to declare a following structure member name, age, height, weight, read all the
members of structure of 10 person & find list of persons with all related
data weight > 50 and print the same with suitable height > 40.
Program:
#include <stdio.h>
#include <conio.h>
struct Person
{
char name[50];
int age;
float height;
float weight;
};
int main()
{
clrscr();
struct Person persons[10];
printf("Enter details of 10
persons:\n");
for (int i = 0; i < 10; i++)
{
printf("\nName: ");
scanf("%s",
persons[i].name);
printf("Age: ");
scanf("%d", &persons[i].age);
printf("Height: ");
scanf("%f", &persons[i].height);
printf("Weight: ");
scanf("%f", &persons[i].weight);
}
printf("\nList of persons with
weight > 50 and height > 40:\n");
printf("------------------------------------------------\n");
printf("Name\tAge\tHeight\tWeight\n");
printf("------------------------------------------------\n");
for (int i = 0; i < 10; i++)
{
if (persons[i].weight >
50 && persons[i].height > 40)
{
printf("%s\t%d\t%.2f\t%.2f\n",
persons[i].name, persons[i].age, persons[i].height, persons[i].weight);
}
}
getch();
}
Output:
Enter
details of 10 persons:
Name:
Arjun
Age: 30
Height:
180
Weight:
70
Name:
Priya
Age: 25
Height:
160
Weight:
55
Name:
Amit
Age: 35
Height:
170
Weight:
65
Name:
Shreya
Age: 28
Height:
150
Weight:
45
Name:
Mehdiali
Age: 16
Height:
185
Weight:
45
Name:
Raj
Age: 40
Height:
155
Weight:
60
Name:
Kavita
Age: 45
Height:
175
Weight:
80
Name:
Vikram
Age: 22
Height:
165
Weight:
52
Name:
Anjali
Age: 27
Height:
190
Weight:
90
Name:
Neha
Age: 38
Height:
170
Weight:
70
List of
persons with weight > 50 and height > 40:
------------------------------------------------
Name Age
Height Weight
------------------------------------------------
Arjun 30
180.00 70.00
Mehdiali
16 185.00 45.00
Anjali 27
190.00 90.00
Please follow me for more practicals....
