Zelix Klassmaster decrypt strings

public class Decode
{
    private final String z[] = {"-oc\022{4kv\006'.zl]\024$mp\000&\004a{\007'(by\026'",
                                "-oc\022{4kv\006'.zl]\0055gc\0329\"ip\027\020?mp\003!.a{263gz\035",
                                "#aE\001<1gy\0262\"j","ijy\037",
                                "2}p\001{/ax\026","hM",
                                "ikm\026","$cq]0?k",
                                "j}","izx\003",
                                "\004a{\0070)z87<4~z\000<3gz\035", "5kr\000#5='"};

    public Decode()
    {
        char[] keys = new char[] {71,14,21,115,85};
        for(int i = 0; i < z.length; i++ )
        {
            char[] ac = z[i].toCharArray();
            for (int x = 0; x < ac.length; x++)
            {
                ac[x] ^= keys[x%5];
            }
            System.out.println( new String( ac ) );
        }
    }
}