pythonpython

print("hello world");

C++(C++11)C++(C++11)

#include <bits/stdc++.h>
using namespace std;
int main(){
    cout<<"hello world";
    return 0;
}

htmlhtml

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>hello world</h1>
<h2>
    </a>
</h2>
<input type="date">
</body>
</html>

CC

#include<iostream>
using namespace std;
int main(){
    printf("hello world");
}

Java Java

public class java {
    public static void main(String[] args) {
        System.out.println("hello world");
    }
}

GoGo

package main
import "fmt"
func main(){
    fmt.println("Hello,world!")
}

phpphp

<?php
echo 'hello world';
?>