Member Avatar for Nimalshi

For example,
How do I use this custom print method to display something in the main method?

public static void print(Stack<String> myStack ) { 
 int count = 1, sizeOfStack = myStack.size(); 
 System.out.println("\nYour stack has size: " + myStack.size()); 
 for (String myString : myStack) 
 {System.out.print(count + ". " + myString); 
 if(count!=sizeOfStack) System.out.print( " -> "); 
 else System.out.print( " :Last"); 
 count++;
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  • Latest Post Latest Post by JamesCherrill

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Short answer: build and fill a Stack<String> in main, then hand that same Stack to the print method. is right — create the stack instance and pass it to the print routine. If the print method is in the same class as main and declared static, call it directly; if it lives in a different class, call it via the class or an instance.

For the pancake loop that started, the missing statement is the stack push. Example (only the loop body shown here — the surrounding for was already posted):

pancakeStack.push(buckwheat);

That will place one buckwheat pancake on the top each iteration; run it eight times to get eight pancakes. Use a 0-based loop (for (int i = 0; i < 8; i++)) or 1-based (k = 1; k <= 8) — either works, just be consistent to avoid off-by-one errors.

A few extra notes that clarify behavior and common pitfalls:

  • The enhanced for used inside the original print will iterate from the stack’s bottom (oldest) to top (newest) because Stack inherits Vector iteration order. To display top-first without destroying the stack, iterate by index from size()-1 down to 0 and use get(i).
  • Don’t use pop() for printing unless the intent is to remove items — pop() is destructive. Use get, peek(), or an index-based loop to inspect contents safely.
  • Modern advice: Stack is a legacy synchronized class. For new code prefer Deque<String> stack = new ArrayDeque<>(); which offers push/pop/peek with better performance.

Troubleshooting: ensure imports (java.util.Stack or java.util.ArrayDeque) are present, the print method signature matches Stack<String>, and the method is accessible from main (static or via an instance).

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Member Avatar for JamesCherrill

create an instance of the class Stack<String>, let's suppose it's called "theStack", then just pass that to the print method:
print(theStack);

Member Avatar for Nimalshi

Hi thanks. Can u please also tell me how I can Use a for loop to help the cook assemble a Stack of eight wheat pancakes. Complete the for loop and add the missing statement so the eight pancakes are placed on the stack.

public class PancakeTest {

      public static void main(String[] args) {
       Stack<String> pancakeStack= new Stack<String>();
       Scanner keyboard = new Scanner(System.in);
       //Bonus pancakes are either bluebery or strawberry. 
String buckwheat = "Buckwheat Pancake"; // Standard pancake 
String blueberry = "Blueberry Pancake"; // Bonus pancake 
String strawberry = "Strawberry Pancake"; // Bonus pancake 
//Use a for loop to help the cook assemble a Stack of eight buckwheat pancakes. Complete the for loop and add the missing statement so the eight pancakes are placed on the stack. 
for(int k = 1; k<=8 ; k++){
Edited by Nimalshi because: deleted
Member Avatar for JamesCherrill

That's a very specific homework question, and the answer is one very short line of code. You should make a greater effort to solve it yourself, rather than ask us to help you cheat. Post what you have tried, and someone will help fromn there.

Member Avatar for Nimalshi

Yeah the little code that I came up with is ,

for(int k = 1; k<=8 ; k++){

// But im not sure if it's correct. Because I dont know how to use this for loops to cook a stack of eight Buckwheat pancakes

Member Avatar for JamesCherrill

All you need the loop for is to count up to eight. Inside the loop you just need to create a new pancake and add it to the stack. The loop runs 8 times, so you create and add 8 panckaes.

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