joplin-notes/joplin notion extension/Web Development/Extras/cli commands for different programming languages.md

cli commands for different programming languages

• C Requiments : gcc in linux and mingw in windows For build system : meson, cmake,pkg-config configuration file : Makefile

    #include <stdio.h>
    int main() {
       // printf() displays the string inside quotation
       printf("Hello, World!");
       return 0;
    }
  
  

  • Compiling and running gcc hello.c -o hello Additionally to link packages use

  gcc `pkg-config --cflags gtk+-3.0` -o main1 main.c `pkg-config --libs gtk+-3.0`
  

  this will compile and create a binary file named hello Running it ./hello  
• C++

    // Your First C++ Program
  
    #include <iostream>
  
    int main() {
    	std::cout << "Hello World!";
    	return 0;
    }
  
  

  • compiling and running g++ hello.cpp -o hello and ./hello to run
    Additionally to link packages g++ main.cpp -Ifltk-1.3.9 -Lfltk-1.3.9/lib -lfltk -lX11 -lXfixes -lXext -lXft -lXrender -lfontconfig -lXcursor -lXinerama -ldl -o main  
• Java Requirements : openjdk installed Build systems : maven/gradle(optional) for extra packages Config files : pom.xml for maven and build.gradle for gradle

    // Your First Program
  
    class HelloWorld {
    	public static void main(String[] args) {
    		System.out.println("Hello, World!"); 
    	}
    }
  

  Compiling and running it javac hello this will create a bytecode named HelloWorld.class to execute the bytecode java HelloWorld Theory bytecode is the low level, platform independent code and when we use java command for bytecode it executes in JVM(Java Virtual Machine). This JVM converts bytecode into machine language and then executes it   Compiling and running with maven mvn package to build it mvn spring-boot:run to run the sprint boot app  
• Javascript Requirements : node installed Build systems : npm/yarn for managing packages Config files : package.json

    console.log('Hello World!')
  

  Running node hello.js for packages npm i npm start  
• python Requirements : python 3.x installed Build system : pip for managing packages Config file : requirements.txt

  print("Hello World!")
  

  Running python hello.py for packages pip install requiremnts.txt python main.py