Answer Happy

Answer these 3 questions using the program
1. Explain the logical error you have encountered?
2. What's causing the logical error?
3. How did you debug the program to correct the logic?
#include<iostream>
using namespace std;
template<typename T>
class Stack
{
private:
T *stackArray;
int top;
int size;
bool isEmpty();
bool isFull();
void updateStack();
public:
Stack(int);
~Stack();
int getSize();
void pushIt(T);
void popIt();
void printStack();
};
template<typename T>
bool Stack<T>::isEmpty()
{
return (top==-1);
}
template<typename T>
bool Stack<T>::isFull()
{
return (top==size-1);
}
template<typename T>
int Stack<T>::getSize()
{
return (top+1);
}
template<typename T>
void Stack<T>::updateStack()
{
this->size=getSize()-1;
T *temp=new T[size];
for(int i=0;i<size;i++)
temp=stackArray;
delete[] stackArray;
stackArray=new T[size];
for(int i=0;i<size;i++)
stackArray=temp;
delete[] temp;
}
template<typename T>
Stack<T>::Stack(int size)
{
this->stackArray=new T[size];
this->size=size;
this->top=-1;
}
template<typename T>
Stack<T>::~Stack()
{
delete[] stackArray;
}
template<typename T>
void Stack<T>::pushIt(T item)
{
if(!isFull())
{
cout<<"Pushing"<<item<<"!"<<endl;
stackArray[top++]=item;
}
else
{
cout<<"Stack isfull!"<<endl;
}
}
template<typename T>
void Stack<T>::popIt()
{
if(!isEmpty())
{
cout<<"Popping"<<stackArray[top]<<"!"<<endl;
//stackArray[top--];
updateStack();
top--;
}
else
{
cout<<"Stack isempty!"<<endl;
}
}
template<typename T>
void Stack<T>::printStack()
{
if(!isEmpty())
{
cout<<"Stack contents: |";
for(int i=0;i<size;i++)
{
cout<<stackArray<<" | ";
}
cout<<endl;
}
else
{
cout<<"Stack isempty!"<<endl;
}
}
int main()
{
int size, ctr=0, option;
double item;
bool exitFlag=false;
cout<<"Specify the size of the stack: ";
cin>>size;
Stack<double> myStack(size);
do
{
cout<<"\n[1] Push anitem."<<endl
<<"[2] Pop anitem."<<endl
<<"[3] Printstack."<<endl
<<"[4]Exit."<<endl
<<"Option:";
cin>>option;
switch(option)
{
case 1:
do
{
cout<<"Enter an item to push: ";
cin>>item;
myStack.pushIt(item);
ctr++;
}while(ctr<myStack.getSize());
break;
case 2:
myStack.popIt();
break;
case 3:
myStack.printStack();
break;
case 4:
exitFlag=true;
break;
default:
cout<<"Invalid selection! Try again!"<<endl;
}
}while(exitFlag!=true);
return 0;
}