# Programming Language
## Definition(s)
### Context: [[Nexus - Google Analytics Certificate Course#7.1 Google Analytics - 7 Data Analysis with R Programming - Module 1 - Programming and data analytics Programming and data analytics|Google Analytics Certificate]]
#### Sub-context: [[Coding]]
>[! Definition]
>A system of words and symbols used to write instructions that computers follow
## Examples
Below are examples of "Hello World" programs written in their respective programming language
#### CSS
```css
<!DOCTYPE html>
<html>
<head>
<style>
body {
margin-left: 200px;
background: #5d9ab2 url("img_tree.png") no-repeat top left;
}
.center_div {
border: 1px solid gray;
margin-left: auto;
margin-right: auto;
width: 90%;
background-color: #d0f0f6;
text-align: left;
padding: 8px;
}
</style>
</head>
<body>
<div class="center_div">
<h1>Hello World!</h1>
<p>This example contains some advanced CSS methods you may not have learned yet. But, we will explain these methods in a later chapter in the tutorial.</p>
</div>
</body>
</html>
```
#### HTML5
```htML
<!DOCTYPE html>
<html>
<head>
<title>First Web Page</title>
</head>
<body>
Hello World!
</body>
</html>
```
#### Java
```java
// This is a simple Java program.
// FileName : "HelloWorld.java".
class HelloWorld {
// Your program begins with a call to main().
// Prints "Hello, World" to the terminal window.
public static void main(String[] args)
{
System.out.println("Hello, World");
}
}
```
#### PHP
```php
<!DOCTYPE html>
<html>
<body>
<h1>My first PHP page</h1>
<?php
echo "Hello World!";
?>
</body>
</html>
```
#### Python
```python
print("Hello World!")
```
#### R
```r
print("Hello World!")
# returns: "Hello World!"
print("Hello World", quote=FALSE)
# returns Hellow World
```
#### Ruby
```ruby
puts "Hello World"
```
#### Swift
```swift
import Foundation
print("Hello World!")
```
## Related
[[Cascading Style Sheets|CSS]]
[[HTML5]]
[[Java]]
[[php]]
[[Python]]
[[Ruby]]
[[Swift]]
## Resources
## Flashcards
The below code are generated for use with [Spaced Repetition plugin](https://github.com/st3v3nmw/obsidian-spaced-repetition/) [docs](https://www.stephenmwangi.com/obsidian-spaced-repetition/)