C is a procedural programming language. It was initially developed by Dennis Ritchie between 1969 and 1973. It was mainly developed as a system programming language to write an operating system. The main features of C language include low-level access to memory, a simple set of keywords, and clean style, these features make C language suitable for system programmings like an operating system or compiler development.
First, we need to install some development tools and applications such as GNU, GCC, C/C++ compiler to compile and execute the code on Linux. You can verify the installed tools using the following command:
To check the version information of cc:
cc -v
Now consider a simple C program file named as Geeks.c as follows:
#include <stdio.h> int main(void) { printf("Hello! Geeks\n"); return 0; } |
To compile this code we can use:
cc filename.c -o executable_file_name
Here, filename.c is the C program file and -o option is used to show the errors in the code. If no error founds then this will generate an executable file as executable_file_name.
cc Geeks.c -o Lazyroaroutput
Here, Lazyroaroutput is the executable file which is generated. So we can execute it like:
./Lazyroaroutput
For C++ Program Files:
C++ is a general-purpose programming language and widely used nowadays for competitive programming. It has imperative, object-oriented and generic programming features. C++ runs on lots of platform like Windows, Linux, Unix, Mac etc. Before we start programming with C++. We will need an environment to be set-up on our local computer to compile and run our C++ programs successfully. You can verify the installed tools using the following command:
To check the version information of g++:
g++ --version
Now consider a simple C++ program file named as Lazyroar.cpp as follows:
#include<iostream> using namespace std; // main function // where the execution // of program begins int main() { // prints Hello World! cout<<"Hello World!\n"; return 0; } |
To compile this code we can use:
g++ filename.cpp -o executable_file_name
Here, filename.cpp is the C++ program file and -o option is used to show the errors in the code. If no error founds then this will generate an executable file as executable_file_name.
g++ Lazyroar.cpp -o Lazyroaroutput
Here, Lazyroaroutput is the executable file which is generated. So we can execute it like:
./Lazyroaroutput
For Java Program Files:
Java is one of the most popular and widely used programming language and platform. A platform is an environment that helps to develop and run programs written in any programming language. You can verify the installed tools using the following command:
To check the version information of Java:
javac -version
To compile the code we can use:
javac filename.java
To execute we will use the name of the class which contains the main method as follows:
java classname
Example: Now consider a simple Java program file named as HelloWorld.java as follows:
class HelloWorld { // Main Method public static void main(String args[]) { System.out.println("Hello, GFG"); } } |
