explain the structure of c program with example

Answers

Answer 1

Answer:

A C program typically consists of a number of components, including preprocessor directives, function prototypes, global variables, functions, and a main function.

Explanation:

Here's an explanation of each component, followed by an example C program that demonstrates their usage:

Preprocessor Directives: Preprocessor directives are instructions to the C preprocessor, which processes the source code before compilation. They usually start with a '#' symbol. Some common directives are #include for including header files and #define for defining constants.

Function Prototypes: Function prototypes provide a declaration of functions that will be used in the program. They specify the function's name, return type, and the types of its parameters.

Global Variables: Global variables are variables that can be accessed by any function in the program. They are usually defined outside of any function.

Functions: Functions are blocks of code that can be called by name to perform specific tasks. They can accept input parameters and return a value. Functions are generally declared before the main function.

Main Function: The main function is the entry point of the program. It's where the execution starts and ends. It has a return type of int and typically takes command-line arguments via two parameters: argc (argument count) and argv (argument vector).

Here's an example C program that demonstrates the structure:

// Preprocessor directives

#include <stdio.h>

// Function prototypes

void print_hello_world(void);

// Global variable

int global_var = 10;

// Functions

void print_hello_world(void) {

printf("Hello, World!\n");

}

// Main function

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

// Local variable

int local_var = 20;

printf("Global variable value: %d\n", global_var);

printf("Local variable value: %d\n", local_var);

print_hello_world();

return 0;

}

This simple C program demonstrates the use of preprocessor directives, a function prototype, a global variable, a function, and the main function. When run, it prints the values of a global and a local variable, followed by "Hello, World!".

Related Questions

(PLS HURRY) Design the infrastructure of a network that is connected to the internet. Be sure that you provide access for users. Your model must explain how a photo, text, or email goes from one device (such as a computer) to another device (another computer) on the internet. You must use a document over 50 words long.

Answers

Answer:

Network infrastructure for internet.

Roshan Mandal

Designing an infrastructure for a network that is connected to the internet involves several components and steps. The first step is to establish an internet connection through an Internet Service Provider (ISP). The ISP will provide a modem or router that connects to the internet and translates the data between the local network and the internet.

The local network should consist of several components, including computers, printers, and servers. These devices can be connected through wired or wireless connections, depending on the infrastructure of the local network.

To provide access for users, the network must have user authentication and authorization mechanisms. These mechanisms ensure that only authorized users can access the network and its resources. This can be achieved through the use of usernames and passwords, access control lists, or biometric authentication.

When a photo, text, or email is sent from one device to another device on the internet, it goes through several stages. The sender's device first sends the data to the local network's router or gateway. The router then forwards the data to the ISP's network, which then sends the data to the recipient's ISP.

The recipient's ISP then sends the data to the recipient's router or gateway, which then sends the data to the recipient's device. The entire process of transmitting data from one device to another device on the internet occurs within a few seconds and involves several network components and infrastructure.

In conclusion, designing an infrastructure for a network that is connected to the internet involves several components and steps. Providing access for users and ensuring the security of the network are critical components of the infrastructure. When data is transmitted from one device to another device on the internet, it goes through several stages and involves multiple network components.

The following equations estimate the calories burned when exercising (source):

Women: Calories = ( (Age x 0.074) — (Weight x 0.05741) + (Heart Rate x 0.4472) — 20.4022 ) x Time / 4.184

Men: Calories = ( (Age x 0.2017) + (Weight x 0.09036) + (Heart Rate x 0.6309) — 55.0969 ) x Time / 4.184

Write a program using inputs age (years), weight (pounds), heart rate (beats per minute), and time (minutes), respectively. Make sure to create only one Scanner object to read all the inputs. Output calories burned for women and men.

Output each floating-point value with two digits after the decimal point, which can be achieved as follows:
System.out.printf("%.2f", yourValue);

Ex: If the input is:

49 155 148 60
the output is:

Women: 580.94 calories
Men: 891.47 calories

CODE:
import java.util.Scanner;

public class LabProgram {
public static void main(String[] args) {}}

Answers

The Corrected code of the program that estimates the calories burned when exercising is given below:

The Program

import java.util.Scanner;

public class LabProgram {

public static void main(String[] args) {

//create an instance of Scanner class

Scanner input = new Scanner(System.in);

//declare integer variables age, weight, heartRate and time

int age, weight, heartRate, time;

//declare double variables menCalories and womenCalories

double menCalories, womenCalories;

//read age

age = input.nextInt();

//read weight

weight = input.nextInt();

//read heartRate

heartRate = input.nextInt();

//read time

time = input.nextInt();

//calculate menCalories and womenCalories using formulas

menCalories = ((age * 0.2017) - (weight * 0.09036) + (heartRate * 0.6309) - 55.0969) * time / 4.184;

womenCalories = ((age * 0.074) - (weight * 0.05741) + (heartRate * 0.4472) - 20.4022) * time / 4.184;

//display results

System.out.println("Men: "+ menCalories+" calories");

System.out.println("Women: "+ womenCalories+" calories");

}

Answers

In this code, we construct a new function called get_part_by_writing that takes a distinct limit p_description of type VARCHAR.

What is the SQL command?

SQL commands communicate with databases and perform tasks, functions, and queries. They can search and modify data, create, add to, and drop tables.

The function returns a table accompanying three lines: article_id of type INT, writing of type VARCHAR, and price of type NUMERIC.Inside the function, we use a RETURN QUERY statement to kill the SQL query that retrieves the record from the ITEM table place the DESCRIPTION pillar equals the input limit.

The QUERY magic words for entry admits us to return a set of rows as the result of the function.

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A microcontroller is a microcomputer packaged as?

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A microcontroller is a type of microcomputer that is packaged as a single integrated circuit, also known as a chip.

What is the information about

It typically contains a central processing unit (CPU), random access memory (RAM), non-volatile memory (such as flash memory), input/output (I/O) ports, and various other peripherals necessary to interface with other electronic components.

The compact size, low power consumption, and cost-effectiveness of microcontrollers make them ideal for use in embedded systems, which are electronic systems that perform dedicated functions within larger systems or products.

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Tariq made a database to keep track of his DVDs when his friends borrow them. He wants to create a list that displays only the DVDs that he currently has at home. Which of the following could he use to create the list?

Report wizard
Chart wizard
Sort wizard
Query wizard

Answers

Answer: D. Query Wizard

Explanation: Tariq could use the Query wizard to create a list that displays only the DVDs that he currently has at home. He can create a query with the criteria "DVDs currently at home" and the query will only show the DVDs that meet that criteria.

Which of the following activities can users do on a properly configured file storage server?

Answers

The activities that users do on a properly configured file storage server is option B: Modify shared files

What is the modifying of files?

Clients can adjust shared records, get to a shared registry, and share records on a legitimately arranged record capacity server. Be that as it may, allowing a advanced certificate of believe isn't a normal action that clients would perform on a record capacity server.

Therefore, This action is more often than not performed by a certificate specialist or a trusted third-party substance that confirms the personality of a client or organization asking the certificate.

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Which of the following activities can users do on a properly configured file storage server?

1 point

Grant a digital certificate of trust

Modify shared files

Access a shared directory

Share files

In a balanced budget, the amount is the amount

Answers

In a balanced budget, the Income amount is same as the expense amount.

What is a balanced budget?

A balanced budget is one in which the revenues match the expenditures. As a result, neither a fiscal deficit nor a fiscal surplus exist. In general, it is a budget that does not have a budget deficit but may have a budget surplus.

Planning a balanced budget assists governments in avoiding excessive spending and focuses cash on regions and services that are most in need.

Hence the above statement is correct.

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Over the centuries, media and information has empowered people to improve themselves and create an impact for their societies. With the advancement of technology, we have practically become "super humans" in the light of media and information. So what are these special powers that we get through media? Consider the drawings below as your visual representation of "Super MIL". List down the power that he/she possesses. Take note, we are not talking fiction here, so make sure that the powers you list are rooted to reality.

Answers

Here are the "superpowers" we gain through advancing media and information:

• Access to vast amounts of knowledge. We have the world's information at our fingertips through the internet. This allows us to continually learn and expand our minds.

• Ability to spread ideas quickly. Media allows us to share knowledge, opinions, concepts, and more with a wide audience instantly. This can help spread innovations, raise awareness for important causes, and shape public discourse rapidly.

• Connecting across distances. We can connect with people all over the globe through services like video calling, social media, messaging, and more. This allows us to build relationships and collaborate with a diverse range of people.

• Aggregating and summarizing information. Media helps filter through massive amounts of information and condense it into more consumable content like news highlights, documentaries, courses, tutorials, best-of lists, etc. This helps us stay informed efficiently.

• Providing alternative perspectives. Exposure to a diversity of media exposes us to different perspectives and opinions. This helps promote openness, combat filter bubbles, and make us more well-rounded and empathetic individuals.

• Enabling productivity and convenience. Technologies like smart assistants, cloud services, streaming media, mobile apps, and more help simplify our lives and optimize our time. We can accomplish more while having greater convenience and flexibility.

• Connecting interests and communities. Platforms are built to bring together people with common interests, hobbies, locations, identities, experiences and more. This allows niche communities to form, collaborate, and strengthen bonds.

• Distributing and promoting creative works. It is easier than ever for individuals to create and share their creative works with a wide audience. This democratization of media allows more voices to be heard and more stories to be told.

One strategy to improve your productivity is to ensure your _____ is at the top of every to-do list.

Answers

One strategy to improve your productivity is to ensure your most important task (MIT) is at the top of every to-do list

How to improve productivity?

To augment your efficiency, it is essential to make sure that your Most Important Task (MIT) is laid out at the commencement of each daily taskset. Evaluating your MIT necessitates figuring out the single errand with the most noteworthy influence on your 24 hours or aid you attain long-term milestones.

By ranking your MIT as the foremost activity in the morning, you can construct a prolific tone for the rest of your day while also sidestepping getting wholly submerged in trivial endeavors. This may cultivate a feeling of success and encourage consistency in productivity per day.

Answers

The third step to creating a successful personalized time management plan is Develop a Plan

How to explain the information

Once you have identified all the tasks and activities that you need to accomplish, you should prioritize them based on their importance and urgency. This will help you to focus on the most important tasks and ensure that you complete them in a timely manner.

The Eisenhower matrix involves categorizing tasks into four quadrants based on their importance and urgency, while ABC analysis involves assigning a priority level (A, B, or C) to each task based on its importance.

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