//Use my Stack class.
public ListStack(Stack b)
{
listStack = new List<int>(); //Constructor for the List.
stackPointer = 0;
if (b != null)
{
int pointer2;
int i = 0;
int[] array = new int[10];
pointer2 = b.GetCount();
if (pointer2 > 0)
{
i = 1;
}
while (pointer2 > 0)
{
array[i] = b.Pop();
pointer2--;
i++;
}
i--;
while (i > 0)
{
this.Push(array[i]);
i--;
}
}
}
public ArrayStack(Stack b)
{
arrayStack = new int[10]; //Tis the the Array where the Values will be stored. Max 10 items.
Pointer = 0; //A pointer to keep track of where to Pop or Push the next Value.
if (b != null)
{
int pointer2;
int i = 0;
int[] array = new int[10];
pointer2 = b.GetCount();
if (pointer2 > 0)
{
i = 1;
}
while (pointer2 > 0)
{
array[i] = b.Pop();
pointer2--;
i++;
}
i--;
while (i > 0)
{
this.Push(array[i]);
i--;
}
}
}
public MyListStack(Stack b)
{
linkedListStack = new LinkedList<int>();
Pointer = 0;
if (b != null)
{
int pointer2;
int i = 0;
int[] array = new int[10];
pointer2 = b.GetCount();
if (pointer2 > 0)
{
i = 1;
}
while (pointer2 > 0)
{
array[i] = b.Pop();
pointer2--;
i++;
}
i--;
while (i > 0)
{
this.Push(array[i]);
i--;
}
}
}
public bool ApplyModifiers(Stack stack, Modifier mod)
{
//This is used to perform the mathematical modifiers.
int firstValue = stack.Pop();
Program.form.listBox1.Items.Add("FirstValue is removed from stack.");
int secondValue = stack.Pop();
Program.form.listBox1.Items.Add("SecondValue is removed from stack.");
if (mod == Modifier.Add){
Push(firstValue+secondValue);
Program.form.listBox1.Items.Add("Pushed " + (firstValue + secondValue) + " to stack.");
}
else if (mod == Modifier.Divide){
if(secondValue == 0){
Program.form.listBox1.Items.Add("Can't devide by zero.");
return false;
}
Push(firstValue/secondValue);
Program.form.listBox1.Items.Add("Pushed " + (firstValue / secondValue) + " to stack.");
}
else if (mod == Modifier.Multiply){
Push(firstValue*secondValue);
Program.form.listBox1.Items.Add("Pushed " + (firstValue * secondValue) + " to stack.");
}
else if (mod == Modifier.Subtract){
Push(firstValue-secondValue);
Program.form.listBox1.Items.Add("Pushed " + (firstValue - secondValue) + " to stack.");
}
else{
Program.form.listBox1.Items.Add("Unknown modifier: " + mod); //Just to be sure.
return false;
}
return true;
}
public void EmptyStack(Stack stack)
{
//To clear the stack just Pop every item in the stack.
int max = stack.GetCount();
for (int i = 0;i < max; i++){
stack.Pop();
}
}
public Form1()
{
currentStack = new ArrayStack(null);
InitializeComponent();
comboBox1.SelectedIndex = 0;
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
//The dropdown Menu is used to select the right Stack Type.
if (comboBox1.SelectedIndex == 0)
{
currentStack = new ArrayStack(currentStack);
}
else if (comboBox1.SelectedIndex == 1)
{
currentStack = new ListStack(currentStack);
}
else
{
currentStack = new MyListStack(currentStack);
}
}
