int add(int a, int b) { return a + b; }
add(3, 4)
add(10, 20)
int square(int x) { return x * x; }
square(5)
square(12)
int factorial(int n) { if (n <= 1) return 1; return n * factorial(n - 1); }
factorial(5)
factorial(10)
int fib(int n) { if (n <= 1) return n; return fib(n - 1) + fib(n - 2); }
fib(10)
fib(15)
double avg(double a, double b) { return (a + b) / 2.0; }
avg(10.0, 20.0)
boolean isEven(int n) { return n % 2 == 0; }
isEven(4)
isEven(7)
String greet(String name) { return "Hello, " + name + "!"; }
greet("World")
%methods
%quit