public static void Demo()
{
var stack = new StackLinkList <object>();
//Console.WriteLine(stack.Peek());
//Console.WriteLine(stack.Pop());
stack.Push(1);
stack.Push("Basant");
stack.Push(3);
stack.Push(4);
stack.PrintStackItems();
Console.WriteLine("printing reverse");
stack.PrintStackItemsReverse();
Console.WriteLine("printing reverse completed");
Console.WriteLine(stack.Peek());
Console.WriteLine(stack.Pop());
Console.WriteLine(stack.Pop());
Console.WriteLine(stack.Pop());
Console.WriteLine(stack.Pop());
Console.WriteLine(stack.Pop());
Console.WriteLine(stack.Pop());
stack.Push(10);
stack.Push(21);
stack.Push(31);
Console.WriteLine(stack.Pop());
Console.WriteLine($"Count: {stack.Count()}");
stack.Clear();
Console.WriteLine(stack.Pop());
}
public static void Demo()
{
var stack = new StackLinkList <string>();
while (true)
{
Console.Write("\nEnter Space Separated Postfix String (0 or Enter to exit): ");
var postfixString = Console.ReadLine() ?? "0";
if (postfixString.Trim() == "0" || postfixString.Trim() == "")
{
return;
}
var postfixList = postfixString.Split(' ');
var validString = true;
foreach (var token in postfixList)
{
switch (GetTokenType(token))
{
case "Operand":
stack.Push(token);
break;
case "Operator":
var op2 = stack.Pop();
var op1 = stack.Pop();
stack.Push(Apply(op1, op2, token).ToString());
break;
case "Invalid Token":
Console.WriteLine("Invalid character in postfix string");
validString = false;
break;
}
}
if (validString)
{
Console.WriteLine($"Result: {stack.Pop()}");
}
}
}