Christmas Lights Java Tuenti Contest

package christmaslight;

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class ChristmasLight {

    public static boolean esPar(int value) {
        if (value%2 == 0) {
            return true;
        }
        return false;
    }

    public static int menor(int a, int b) {
        if (a<b) {
            return a;
        }
        return b;
    }

    public static String calcularEncendidas(int numBombillas, int numInstante) {
        String solucion = "";

        if (numInstante == 0) {
            return "All lights are off :(";
        }
        int i = 0;

        if (esPar(numInstante)) {
            i++;
        }

        int hasta = menor(numInstante-1, numBombillas-2);

        for (;i<hasta;i+=2) {
            solucion += i + " ";
        }

        if (i == hasta) {
            solucion += i;
        }

        if (solucion.isEmpty()) {
            solucion = "All lights are off :(";
        }

        return solucion;
    }

    public static void main(String[] args) {

        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        try {
            int numCasos = Integer.parseInt(br.readLine());
            for (int i=0; i<numCasos; i++) {
                int numBombillas = Integer.parseInt(br.readLine());
                int numInstante = Integer.parseInt(br.readLine());
                System.out.println(calcularEncendidas(numBombillas, numInstante));
            }

        } catch (Exception e) {
            e.printStackTrace();
        }

    }

}