Top 10 programs on C: Data Types

Programming requires a wide range of data types, and C, with its efficiency and versatility, provides them all. For anyone who wants to become a programmer, understanding these data types is important. Here are eleven crucial C programmes that demonstrate how to use and manipulate various data types:

Table of Contents

1.Integer Arithmetic (int):

#include <stdio.h>

int main() {
    int a = 5, b = 3;
    int sum = a + b;
    printf("Sum: %d\n", sum);
    return 0;
}

Integer arithmetic is demonstrated in this simple programme by initialising variables as integers and carrying out addition.

2.Floating-Point Arithmetic (float):

#include <stdio.h>

int main() {
    float radius = 5.6;
    float area = 3.14 * radius * radius;
    printf("Area of Circle: %f\n", area);
    return 0;
}

This program uses floating-point arithmetic to compute the area of a circle using float data types.

3.Character Handling (char):

#include <stdio.h>

int main() {
    char letter = 'A';
    printf("Character: %c\n", letter);
    return 0;
}

Initialises and prints a single character to show character handling.

4.Array Manipulation (arrays):

#include <stdio.h>

int main() {
    int numbers[5] = {1, 2, 3, 4, 5};
    for (int i = 0; i < 5; i++) {
        printf("%d ", numbers[i]);
    }
    printf("\n");
    return 0;
}

Initialises and prints the elements of an integer array to demonstrate the fundamentals of arrays.

5.String Handling (strings):

#include <stdio.h>
#include <string.h>

int main() {
    char name[] = "John Doe";
    printf("Name: %s\n", name);
    printf("Length: %d\n", (int)strlen(name));
    return 0;
}

Initializes, prints, and computes the length of a string to introduce string handling.

6.Boolean Logic (bool):

#include <stdio.h>
#include <stdbool.h>

int main() {
    bool isTrue = true;
    if (isTrue) {
        printf("It's true!\n");
    } else {
        printf("It's false!\n");
    }
    return 0;
}

Shows boolean logic using the C library stdbool.h.

7.Pointer Operations (pointers):

#include <stdio.h>

int main() {
    int number = 10;
    int *ptr = &number;
    printf("Value: %d\n", *ptr);
    return 0;
}

By allocating and publishing the value that pointers point to, introduces pointers.

8.Enumeration (enum):

#include <stdio.h>

enum Days { Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday };

int main() {
    enum Days today = Wednesday;
    printf("Today is day number: %d\n", today);
    return 0;
}

Assigning numerical values to the days of the week demonstrates enumeration.

9.Size of Data Types (sizeof):

#include <stdio.h>

int main() {
    printf("Size of int: %d bytes\n", (int)sizeof(int));
    printf("Size of float: %d bytes\n", (int)sizeof(float));
    printf("Size of char: %d byte\n", (int)sizeof(char));
    return 0;
}

uses the sizeof() operator to display the size in bytes of various data types.

10.Type Casting (type casting):

#include <stdio.h>

int main() {
    float result = 15 / 2; // result will be 7.0, not 7.5
    float correctedResult = (float)15 / 2; // type casting to get 7.5
    printf("Result: %f\n", result);
    printf("Corrected Result: %f\n", correctedResult);
    return 0;
}

Demonstrates how to transform data types using type casting to guarantee reliable computations.

These eight programs provide an extensive overview of different data types and how they are used in C programming. Gaining experience with and comprehension of these programs will provide a solid basis for learning about data types in C.

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