What Does a Computer Programmings Do?
Computer science is the study of what computers do and computer programming is the practice of making computers do things with computer programming language like c, c++, Java, Python, C# etc. Computer programming enables us to solve a problem with coding work.
The person who does coding is called programmer or coder and this activity is called programming, and programming has different type of task which programmer do while programming such as understand the problem statement, choose right programming language for given problem, programming language may be different for different type of work and nature of environment, write code and finally test the code. similar type of programming work is updating the code of existing programs. Or, they may test programs for errors, finding and solving the lines of code.
If you want to learn any programming language then may take a look at the programming courses offered by universities you're interested in to find out whether the course is a CS course, a programming course.
Are you looking for Programming help?
Working on programming work or doing some coding stuff you may be very confident at some point during programming and can complete work on time. most colleges students learn programming on their own time. You can also download the source code of any open-source software and submit revisions you feel can benefit the project. If your work doesn’t quite meet the project’s standards, your revisions will be reverted by the project administrator.
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Common computer programming language
C Programming Help: C is a general-purpose, procedural computer programming language supporting structured programming, lexical variable scope, and recursion, while a static type system prevents unintended operations.
About C- crash course
How to write simple hello world program in C?
Example:
#include<stdio.h>
int main(void) {
printf("Hello World\n");
return 0;
}
Why we use #include <stdio.h> in C?
Specifically, the #include directive takes the file stdio.h (which stands for standard input and output) located somewhere in your operating system, copies the text, and substitutes it where the #include was.
How are C strings represented?
They are represented as characters in memory. The end of the string includes a NULL (0) byte. So "ABC" requires four(4) bytes ['A','B','C','\0'].
Initializing string in C:
Syntax:
char *str = "ABC";
char str[] = "ABC";
char str[]={'A','B','C','\0'};
How do you declare a pointer?
A pointer refers to a memory address. The type of the pointer is useful - it tells the compiler how many bytes need to be read/written. You can declare a pointer as follows.
Syntax:
int *ptr1;
char *ptr2;
Due to C's grammar, an int* or any pointer is not actually its own type. You have to precede each pointer variable with an asterisk. As a common gotcha, the following
Syntax:
int* ptr3, ptr4;
Will only declare *ptr3 as a pointer. ptr4 will actually be a regular int variable. To fix this declaration, keep the * preceding to the pointer
Syntax:
int *ptr3, *ptr4;
C++ Programming Help : C++ is first object oriented programming language which most was popular after c programming and helped lay the foundation for subsequent languages, such as C#, D, and Java. Many programmers use C++ when designing software infrastructure and resource-constrained applications, like desktop applications or e-commerce servers. Experts recommend computer programming students learn C++ as one of their first languages.First appearing in 1985,
Example:
#include<iostream>
using namespace std;
int main()
{
cout << "Hello, World!";
return 0;
}
JAVA Programming Help: Java is an all-purpose computer programming language. Java boasts of “write once, run anywhere” functionality, meaning that code written in Java can run on any device equipped with a Java virtual machine. The widespread use of the Java language makes it a critical competency for programmers.
Example:
class HelloWorld
{
// Your program begins with a call to main().
// Prints "Hello, World" to the terminal window.
public static void main(String args[])
{
System.out.println("Hello, World");
}
Python Programming Help: Python is an interpreted, high-level, general-purpose programming language. Created by Guido van Rossum and first released in 1991.
Simple Hello program in python
Example:
# This program prints the entered message
def justPrint(text):
'''This function prints the text passed as argument to this function'''
print(text)
if __name__ == '__main__':
justPrint('Hello')
JAVASCRIPT Programming Help: JavaScript (JS) is a lightweight, interpreted, or just-in-time compiled programming language with first-class functions. JavaScript is one of the three core technologies of the World Wide Web. Nearly all websites use JavaScript to enable interactivity, and all major web browsers incorporate a JavaScript engine. Computer programmers working on web applications must have an intimate knowledge of JavaScript.
Example
In this we will simple one line alert() function to print hello, world using external js file with html.
alert('Hello Wordls!')
ASP NET Programming Help: ASP.NET supports the development of dynamic web pages, or pages that display different content each time a user views them. ASP.NET allows programmers to build other dynamic web applications and web services as well. Most modern programmers learn a newer variation of ASP.NET known as ASP.NET Core.Created by Microsoft.
Example:
C# Programming Help: C#, pronounced C-sharp, is a general-purpose and multi-paradigm programming language. Released in 2000, C# offers exceptional flexibility, allowing programmers to create dynamic web pages, applications, development tools, and compilers. Hailed as modern, simple, and powerful, C# represents one of the core languages computer programmers must know to qualify for most jobs in this field
Example:
// A Hello World! program in C#.
using System;
namespace HelloWorld
{
class Hello
{
static void Main()
{
Console.WriteLine("Hello World!");
// Keep the console window open in debug mode.
Console.WriteLine("Press any key to exit.");
Console.ReadKey();
}
}
}
SQL Query Help: Structured Query Language (SQL in short), manages data within a relational database management system. Originally developed in 1974, SQL remains in use today in applications like Microsoft Access. While computer programmers can benefit from understanding and using SQL, the language mostly serves programmers specializing in database design and management.
HTML Programming Help: Hypertext Markup Language (HTML) is one of the most commonly used languages in web design. Internet browsers receive HTML documents from a server and then turn these documents into multimedia web pages. Given the universality of HTML, computer programmers should strive to learn the language even before beginning an undergraduate program in computer science.
Example:
<html>
<body>
<h1>Hello World</h1>
</body>
</html>
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