VB ve Java Bilenler.

public class Mixer 
{ 

    public Mixer() 
    { 
    } 

    public String mix(long l, String s) 
    { 
        int i = s.length(); 
        char ac[] = new char[s.length()]; 
        int ai[] = getRnds(l, i); 
        if(s.length() == 0) 
            return ""; 
        s.getChars(0, s.length(), ac, 0); 
        char c = ac[ai[0]]; 
        for(int j = 0; j <= i - 2; j++) 
            ac[ai[j]] = ac[ai[j + 1]]; 

        ac[ai[i - 1]] = c; 
        return new String(ac); 
    } 

    public static void main(String args[]) 
    { 
        String s = "Hi dnm, will you be able to break this??? ;-)"; 
        Mixer mixer = new Mixer(); 
        String s1 = mixer.mix(1L, s); 
        System.out.println(s); 
        System.out.println(s1); 
        System.out.println(mixer.demix(1L, s1)); 
    } 

    int[] getRnds(long l, int i) 
    { 
        int ai[] = new int[i]; 
        Random random = new Random(l); 
        for(int j = 0; j < i; j++) 
            ai[j] = (int)(random.nextDouble() * (double)i); 

        System.out.println(); 
        return ai; 
    } 

    public String demix(long l, String s) 
    { 
        int i = s.length(); 
        char ac[] = new char[s.length()]; 
        int ai[] = getRnds(l, i); 
        if(s.length() == 0) 
            return ""; 
        s.getChars(0, s.length(), ac, 0); 
        char c = ac[ai[i - 1]]; 
        for(int j = i - 2; j >= 0; j--) 
            ac[ai[j + 1]] = ac[ai[j]]; 

        ac[ai[0]] = c; 
        return new String(ac); 
    } 
}