package com.example.utils
class Calculator {
def add(a: Int, b: Int): Int = a + b
def subtract(a: Int, b: Int): Int = a - b
def multiply(a: Int, b: Int): Int = a * b
def divide(a: Double, b: Double): Double = {
if (b == 0) throw new IllegalArgumentException("Cannot divide by zero")
a / b
}
}
object StringUtils {
def reverse(s: String): String = s.reverse
def isPalindrome(s: String): Boolean = {
val clean = s.toLowerCase.replaceAll("[^a-z0-9]", "")
clean == clean.reverse
}
}
// Generic class
class Box[T](val content: T) {
def get: T = content
def map[U](f: T => U): Box[U] = new Box(f(content))
}
