I am trying to create an Iterative solution. Can you help pinpoint where my coding is off? Thanks.

public class TowersOfHanoiIteration {

class Stack {

int maxSize;

int topOfArray;

int array[];

}

Stack newStack(int maxSize) {

Stack stack = new Stack();

stack.maxSize = maxSize;

stack.topOfArray = -1;

stack.array = new int[maxSize];

return stack;

}

boolean stackIsFull (Stack stack) {

return (stack.topOfArray == stack.maxSize -1);

}

boolean stackIsEmpty (Stack stack) {

return (stack.topOfArray == -1);

}

void push (char start, int data) {

if (stackIsFull(start))

return;

start.array[++start.topOfArray] = data;

}

int pop (Stack stack) {

if (stackIsEmpty(stack))

return Integer.MIN_VALUE;

return stack.array[stack.topOfArray--];

}

void moveBetweenTowers (Stack Tower1, Stack Tower2, char start, char next) {

int Tower1Top = pop(Tower1);

int Tower2Top = pop(Tower2);

if (Tower1Top == Integer.MIN_VALUE) {

push(Tower1, Tower2Top);

moveDisk (next, start, Tower2Top);

} else if (Tower2Top == Integer.MIN_VALUE) {

push(next, Tower1Top);

moveDisk(start, next, Tower1Top);

} else if (Tower1Top > Tower2Top) {

push(start, Tower1Top);

push(start, Tower2Top);

moveDisk(start, next, Tower1Top);

} else {

push(next, Tower2Top);

push(next, Tower1Top);

moveDisk(start, next, Tower1Top);

}

}

void moveDisk (char startTower, char nextTower, int Disk) {

System.out.println("Move disk " + Disk + " from " + startTower + " to " + nextTower);

}

void TowersOfHanoiIterative (int totalDisks, Stack Tower1, Stack stackEmpty, Stack Tower2) {

int i;

int maxMoves;

char start ='A', next = 'B', a ='C';

if (totalDisks % 2 == 0) {

char temp = next;

next = start;

start = temp;

}

maxMoves = (int)(Math.pow(2, totalDisks) - 1);

for (i = totalDisks; i >= 1; i--)

push(start, i);

for (i =1; i <=maxMoves; i++) {

if (i%3 == 1)

moveBetweenTowers(Tower1,Tower2, start, next);

else if (i % 3 == 2)

moveBetweenTowers(Tower1, stackEmpty, start, a);

else if (i%3 == 0 )

moveBetweenTowers(stackEmpty, Tower2, a, next);

}

}

public static void main (String args[]) {

int totalDisks = 3;

TowersOfHanoiIteration ob = new TowersOfHanoiIteration();

Stack Tower1, Tower2, stackempty;

Tower1 = ob.createStack(totalDisks);

Tower2 = ob.createStack(totalDisks);

stackEmpty = ob.createStack(totalDisks);

ob.TowersOfHanoiIterative(totalDisks, Tower1, stackEmpty, Tower2);

}

}