Hello world program

A 'Hello World' program is generally the simplest computer program possible in a programming language.

Uses of a hello world program

• Learning the basic syntax of a new programming language: it's often the easiest thing you can program
• Testing that a build tool is set up correctly

Example: hello world in Python

print("Hello World")

Example: hello world in C

#include <stdio.h>
int main(int argc, char* argv[]) {
    printf("Hello World");
    return 0;
}

Example: hello world in Java

// File name: MyProgram.java
public class MyProgram {
    public static void main(String[] args) {
        System.out.println("Hello World");
    }
}