Rava/examples/07_CollatzConjecture.java

public class CollatzConjecture {
    public static int collatzSteps(int n) {
        int steps = 0;
        while (n != 1) {
            if (n - (n / 2) * 2 == 0) {
                n = n / 2;
            } else {
                n = 3 * n + 1;
            }
            steps = steps + 1;
        }
        return steps;
    }

    public static int main() {
        System.out.println(collatzSteps(1));
        System.out.println(collatzSteps(2));
        System.out.println(collatzSteps(3));
        System.out.println(collatzSteps(10));
        System.out.println(collatzSteps(15));
        System.out.println(collatzSteps(27));
        System.out.println(collatzSteps(100));
        return 0;
    }
}