Passing an array argument to a function by referance

Question

Below is my function I want to call my function but there seems to be an error in the way I am calling it can you tell me the right syntax to use?
The function accepts 3 arguments an array of ints, an array of booleans and an int.
I am calling it as
findamobileset ( citys, pointers, sizeofarrays);
public void findamobileset (int citys[], boolean[] pointers, int sizeofarrays)
int maxarraynumber = -1;
int tempswap = -1 ;
boolean runagain = false;
for(int i = 0;i < sizeofarrays; i++){
//if the mobile flag is pointing to the right: look at the +1 current position where on and if its bigger then make that the biggest k so far
//ALSO check if its not pointing off the array
if(pointers[i] == true && i !=citys[sizeofarrays] && citys[i+1] < citys[i] && citys[i] > maxarraynumber){
maxarraynumber = citys;
//if the mobile flag is pointing to the left: look at the +1 current position where on and if its bigger then make that the biggest k so far
if(pointers[i] ==false && i != citys[0] && citys[i-1] < citys[i] && citys[i] > maxarraynumber){
maxarraynumber = citys[i];
//swap k with an ajacent integer the arrow is pointing too
if(pointers[maxarraynumber] == true)
tempswap = citys[maxarraynumber+1];
citys[maxarraynumber+1] =citys[maxarraynumber];
citys[maxarraynumber] = tempswap;
else
{  tempswap = citys[maxarraynumber-1];
citys[maxarraynumber-1] =citys[maxarraynumber];
citys[maxarraynumber] = tempswap;
//reverse all numbers greater then k
for(int i = 0;i < sizeofarrays; i++){
if(citys[i] > maxarraynumber){
if(pointers[i] == true){
pointers[i]= false;}
else
pointers[i] = true;
// print out the array
for(int i = 0;i < sizeofarrays; i++){
System.out.print(citys[i] + " ");
System.out.println(" ");
//test if theres a mobile integer left to redo it and flip the flag if there is
for(int i = 0;i < sizeofarrays; i++){
if(pointers[i] == true && i !=citys[sizeofarrays] && citys[i+1] < citys[i] ){
runagain = true;
if(pointers[i] ==false && i != citys[0] && citys[i-1] < citys[i] ){
runagain = true;
//recurviely call the algorithm again
if(runagain == true){
findamobileset ( citys, pointers, sizeofarrays);
else
{/terminate}

Answer 1

1) There is no pass-by-reference in Java. At best, you have a reference that's passed.by-value (a copy of this reference, pointing to the same object).
2) I won't read all of your code
3) Which is unformatted anyway
4) so I don't know what the error is. Maybe you care to tell me?