Here's how to write "Hello, World!" in various programming languages and technologies:
### 1. Python
```python
print("Hello, World!")
```
### 2. C
```c
#include <stdio.h>
int main() {
printf("Hello, World!\n");
return 0;
}
```
### 3. C++
```cpp
#include <iostream>
int main() {
std::cout << "Hello, World!" << std::endl;
return 0;
}
```
### 4. C#
```csharp
using System;
class Program
{
static void Main()
{
Console.WriteLine("Hello, World!");
}
}
```
### 5. Objective-C
```objectivec
#import <Foundation/Foundation.h>
int main(int argc, const char * argv[]) {
@autoreleasepool {
NSLog(@"Hello, World!");
}
return 0;
}
```
### 6. SQL (MySQL)
```sql
SELECT 'Hello, World!';
```
### 7. MongoDB (JavaScript-based shell)
```javascript
print("Hello, World!");
```
### 8. HTML
```html
<!DOCTYPE html>
<html>
<head>
<title>Hello World</title>
</head>
<body>
<h1>Hello, World!</h1>
</body>
</html>
```
### 9. CSS (Using `content` property in pseudo-elements)
```css
body::before {
content: "Hello, World!";
display: block;
font-size: 24px;
}
```
### 10. JavaScript
```javascript
console.log("Hello, World!");
```
### 11. PHP
```php
<?php
echo "Hello, World!";
?>
```
### 12. Java
```java
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}
```
### 13. Ruby
```ruby
puts "Hello, World!"
```
### 14. Swift
```swift
print("Hello, World!")
```
### 15. Kotlin
```kotlin
fun main() {
println("Hello, World!")
}
```
### 16. Bash (Shell script)
```bash
echo "Hello, World!"
```
### 17. Perl
```perl
print "Hello, World!\n";
```
### 18. Go
```go
package main
import "fmt"
func main() {
fmt.Println("Hello, World!")
}
```
### 19. R
```r
cat("Hello, World!\n")
```
### 20. Rust
```rust
fn main() {
println!("Hello, World!");
}
```
### 21. Scala
```scala
object HelloWorld {
def main(args: Array[String]): Unit = {
println("Hello, World!")
}
}
```
### 22. Haskell
```haskell
main = putStrLn "Hello, World!"
```
### 23. MATLAB
```matlab
disp('Hello, World!')
```
### 24. Lua
```lua
print("Hello, World!")
```
### 25. Assembly (x86)
```assembly
section .data
hello db 'Hello, World!',0
section .text
global _start
_start:
mov edx, 13 ; message length
mov ecx, hello ; message to write
mov ebx, 1 ; file descriptor (stdout)
mov eax, 4 ; system call number (sys_write)
int 0x80 ; call kernel
mov eax, 1 ; system call number (sys_exit)
int 0x80 ; call kernel
```
### 26. Pascal
```pascal
program HelloWorld;
begin
writeln('Hello, World!');
end.
```
### 27. TypeScript
```typescript
console.log("Hello, World!");
```
### 28. Fortran
```fortran
program hello
print *, 'Hello, World!'
end program hello
```
### 29. COBOL
```cobol
IDENTIFICATION DIVISION.
PROGRAM-ID. HELLO-WORLD.
PROCEDURE DIVISION.
DISPLAY 'Hello, World!'.
STOP RUN.
```
### 30. SQL (PL/SQL)
```sql
BEGIN
DBMS_OUTPUT.PUT_LINE('Hello, World!');
END;
```
These examples cover a wide range of programming languages and technologies, each with a simple "Hello, World!" output.
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