// 01_basics.ruchy - Basic Ruchy syntax and operations
fn main() {
// Variables and basic types
let x = 42
let pi = 3.14159
let message = "Hello, Ruchy!"
let flag = true
println("=== Basic Variables ===")
println(f"Integer: {x}")
println(f"Float: {pi}")
println(f"String: {message}")
println(f"Boolean: {flag}")
// Arithmetic operations
println("\n=== Arithmetic ===")
let sum = x + 8
let product = x * 2
let quotient = x / 6
let remainder = x % 5
println(f"{x} + 8 = {sum}")
println(f"{x} * 2 = {product}")
println(f"{x} / 6 = {quotient}")
println(f"{x} % 5 = {remainder}")
// String operations
println("\n=== Strings ===")
let first = "Hello"
let second = "World"
let combined = f"{first}, {second}!"
println(combined)
// String methods
println(f"Uppercase: {combined.upper()}")
println(f"Lowercase: {combined.lower()}")
println(f"Length: {combined.len()}")
// Type conversions
println("\n=== Type Conversions ===")
let num_str = "123"
let num = num_str.to_int()
println(f"String '{num_str}' to int: {num}")
let float_val = 3.7
let int_val = float_val.to_int()
println(f"Float {float_val} to int: {int_val}")
// Mutability
println("\n=== Mutability ===")
let mut counter = 0
println(f"Initial counter: {counter}")
counter = counter + 1
counter += 1
println(f"After increments: {counter}")
}