[SRC] Java Speichermessung

public class Fak {
    static long[] Speicher = new long [2000];
    static Runtime st = Runtime.getRuntime();
    static int i = 0;

    public static void p(int a ) {
        System.out.println(a);
    }
    public static void p(long a ) {
        System.out.println(a);
    }
    public static void p(String a ) {
        System.out.println(a);
    }

    private static long fak (int n) {
        if (n==0||n==1) {
            return 1;
        } else {
            //Speicher[i] = rt.freeMemory();
            i++;
            return n*fak(n-1);
        }
    }

    public static void auslesen() {
        for(long k = 1; k < Speicher.length-1; k++) {
            System.out.println(Speicher[i]);
        }
    }

    public static void main (String[] args) {
        long MemAnfang;
        long MemEnde;

        Runtime rt = Runtime.getRuntime();
        rt.gc();
        MemAnfang = rt.freeMemory();
        p("free (1): " + MemAnfang);

        p(fak(30));

        p("free (2): " +rt.freeMemory());
        MemEnde = rt.freeMemory();

        System.out.println("Memory (begin) : " + MemAnfang/1024 + " kb");
        System.out.println("Memory (end)   : " + MemEnde/1024 + " kb");
        System.out.println("Differenz      : " + (Math.abs(MemEnde-MemAnfang) / 1024) + "kb");

    }
}