Java MultiCatch

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package sk.academy.java.viii;

/**
 *
 * @author Miroslav
 */
public class C_MultiCatch {

    public static void cleanUpFirst() {
        System.err.println("Obstarávam prostriedky    ");
        System.err.println("Začínam vykonávať požadovanú operáciu");
        RuntimeException rex = new RuntimeException("\nOperácie zlyhali pretože...");
        System.err.println("Výnimka je vytvorená – bude sa vyhadzovať");
        throw rex;
    }

    public static void recursion1(int level) {
        System.out.println("+++++ Príchod na hladinu " + level);
        int breaker = 1 / level;
        System.out.println("Delenie v hladine " + level + " sa podarilo        ");
        try {
            recursion1(level - 1);
        } catch (RuntimeException rex) {
            // Bude chodiť aj pre typ ArithmeticException
            System.out.println("xxxx V hladine " + level + " prišla " + rex);
            rex.printStackTrace(System.out);
        }
        System.out.println("----- Koniec akcie v hladine " + level);
    }

    public static void recursion2(int level) {
        System.out.println("+++++ Príchod na hladinu " + level);
        try {
            //multitest(level);
            System.out.println("Test v hladine " + /*level +*/ " prešiel");
            recursion2(level - 1);
        } catch (ArithmeticException e) {
            System.out.println("xxxxx Niečo sa nespočítalo\n " + e);
        } catch (NullPointerException e) {
            System.out.println("xxxxx Prázdny ukazovateľ\n " + e);
        } catch (IndexOutOfBoundsException e) {
            System.out.println("xxxxx Index mimo pola\n " + e);
        } catch (RuntimeException e) {
            System.out.println("xxxxx Niekde sa stala chyba\n " + e);
        } catch (Throwable e) {
            System.out.println("xxxxx Niečo sa stalo\n " + e);
        }
        System.out.println("----- Koniec akcie v hladine " + level);
    }

    public static void recursion3(int level) {
        System.out.println("+++++ Príchod na hladinu " + level);
        try {
            //multitest(level);
            //int a = 5 / 0;

            Object obj = null;
            //obj.hashCode();
            System.out.println(obj.toString());

            System.out.println(" Test v hladine " + level + " prešiel");
            //recursion3(level - 1);
        } catch (ArithmeticException | NullPointerException e) {
            System.out.println("xxxxx Nastala výnimka typu\n " + e);
        } catch (IndexOutOfBoundsException e) {
            System.out.println("xxxxx Index mimo pola\n " + e);
        } catch (RuntimeException e) {
            System.out.println("xxxxx Niekde sa stala chyba\n " + e);
        } catch (Throwable e) {
            System.out.println("xxxxx Niečo sa stalo\n " + e);
        }
        System.out.println("----- Koniec akcie v hladine " + level);
    }

    public static void main(String[] args) {
        // cleanUpFirst();
        //recursion1(1);
        // recursion2(1);
        recursion3(1);

    }
}