new operator is not allocating memory properly. - c++

Question

my code is suppose to create a singly linked list using and array of nodes.
each Node has variable item which hold data and variable next which holds the index of the next node in the list. the last node has -1 in its next data field to simulate a nullptr. head holds the index of the first node in the list.
for some reason when i try to create new memory the program throws an instance of bad_alloc
terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc
#include "ArrayList.h"
#include <iostream>
using namespace std;
ArrayList::ArrayList(char ch){
array = new Node[Size];
(array[0]).item = ch;
(array[0]).next = 1;
free = 1;
head = 0;
}
bool ArrayList::cons(char ch) {
if (this->isFull()){
this->doubleArray();
}
(array[free]).item = ch;
(array[free]).next = head;
head = free;
free++;
// cout << free << endl;
return true;
}
bool ArrayList::isFull() const{
int current = head;
int count =0;
while( (array[current]).next != -1 ){
count++;
current = (array[current]).next;
}
return (count == Size) ? true : false;
}
bool ArrayList::doubleArray() {
int oldSize = Size;
Size *=2;
Node* newArray = new Node[Size]; // problem occurs here, i think
int count =0;
while(oldSize >= count ){
(newArray[count]).item = (array[count]).item;
(newArray[count]).next = (array[count]).next;
count++;
}
free = count +1;
delete [] array;
array = newArray;
cout <<"free: "<< free << endl;
return true; // come up with thiss
}
void ArrayList::print() const{
if (head == -1) return;
int current = head;
cout << "[ ";
while( (array[current]).next != -1){
cout << (array[current]).item <<" ";
current = (array[current]).next;
}
cout << (array[current]).item <<"]";
return;
}
///////////////////////////////////
#ifndef ARRAYLIST_H
#define ARRAYLIST_H
#include <iostream>
using namespace std;
class Node{
public:
char item;
int next;
Node(){
next = -1;
}
Node(char input){
this->item = input;
next = -1;
}
};
class ArrayList{
public:
ArrayList(char ch);
int length() const;
void print() const;
private:
bool doubleArray();
bool isFull() const;
Node* array;
int Size = 5;
int head = -1;
int free = 0;
};
#endif
////////////////////////////////////////
#include <iostream>
#include "ArrayList.h"
using namespace std;
int main(){
ArrayList list('1');
list.cons('2');
list.cons('3');
list.cons('4');
list.cons('5');
list.cons('6');
list.cons('7');
list.print();
//cout << list.length();
return 0;
}