Hello World — Your First Program

Traditionally, the first program in any language prints "Hello, World!" to the screen. Let's do that!

Create Your First File

1. Open your text editor (VS Code, Notepad, etc.)
2. Create a new file named hello.adesh
3. Type this code:

print("Hello, World!");

Output:

Hello, World!

Run It

Open a terminal in the folder where you saved the file:

adesh run hello.adesh

Output:

Hello, World!

🎉 You just ran your first AdeshLang program!

What Just Happened?

Code	Meaning
print(...)	A function that displays text
"Hello, World!"	A string — text wrapped in quotes
;	Ends a statement (like a period in English)

Try It Yourself

Change the message and run again:

print("Hello, AdeshLang!");
print("I'm learning to code!");
print("This is fun!");

Output:

Hello, AdeshLang!
I'm learning to code!
This is fun!

Understanding the Parts

The print Function

Think of print as a machine: you give it something, it shows it on screen.

print("Hello");        // Input: "Hello" → Output: Hello
print(42);             // Input: 42 → Output: 42
print(true);           // Input: true → Output: true
print(3.14);           // Input: 3.14 → Output: 3.14

Output:

Hello
42
true
3.14

Strings

Text in programming is called a string (a string of characters).

"This is a string"
"123"           // Numbers as text
"Hello, World!" // With punctuation
""              // Empty string

Use double quotes " for strings. Single quotes ' are for single characters.

Statements and Semicolons

Each line of action ends with ;. It tells AdeshLang "this instruction is complete."

print("Line 1");    // Statement 1
print("Line 2");    // Statement 2
print("Line 3");    // Statement 3

Output:

Line 1
Line 2
Line 3

Without ;, AdeshLang gets confused about where one instruction ends and the next begins.

Common Mistakes

Mistake	Error	Fix
Missing quotes	print(Hello)	Use print("Hello")
Missing semicolon	print("Hi")	Add ; at end
Wrong file extension	hello.txt	Use .adesh

Experiment!

Try these variations:

// Print multiple things at once
print("Name:", "Alice", "Age:", 30);

// Print with custom separator
print("Apple", "Banana", "Cherry", { sep: ", " });
// Output: Apple, Banana, Cherry

// Print without newline at end
print("Loading", { end: "..." });
print("Done!");
// Output: Loading...Done!

Output:

Name: Alice Age: 30
Apple, Banana, Cherry
Loading...Done!

Summary

✅ You learned:

• How to create and run an .adesh file
• The print function displays output
• Strings are text in double quotes
• Statements end with ;

Next Step

Ready to store and use data? Continue to Variables & Data →