TestStackArray.java

import java.util.*;

public class TestStackArray {
   public static void main(String[] args) {
      
     
         Scanner scann = new Scanner(System.in); 
         String choice = "";

         System.out.println("Enter size");
      int size = scann.nextInt();
      stackArray SA = new stackArray(size);
      scann.nextLine();
      

      do {
         System.out.println("------Welcome to Stack Menu---------------------------");
         System.out.println(" Press [1] to push");
         System.out.println(" Press [2] to pop");
         System.out.println(" Press [3] to peek");
         System.out.println(" Press [4] to display stack");
         System.out.println(" Press [5] to Exit");
         System.out.println("----------------------------------------------------------");

         System.out.print(" Enter your choice: ");
         choice = scann.nextLine();

         switch (choice) {
            case "1":
               System.out.print(" Enter value to push to stack: ");
               String value = scann.nextLine(); // Get user input for the value
               if (SA.push(value)) {
                  System.out.println("Value pushed: " + value);
               } else {
                  System.out.println("Stack is full. Cannot push.");
               }
               break;
            case "2":
               if (SA.pop()) {
                  System.out.println("Value popped.");
               } else {
                  System.out.println("Stack is empty. Cannot pop.");
               }
               break;
            case "3":
               String topValue = SA.peek();
               if (topValue != null) {
                  System.out.println("Current top value: " + topValue);
               } else {
                  System.out.println("Stack is empty.");
               }
               break;
            case "4":
               SA.displayStack();
               break;
            case "5":
               System.out.println(" Exiting Program...");
               break;
            default:
               System.out.println(" Invalid choice. Please try again.");
               break;
         }

      } while (!choice.equals("5"));
         
    
      
   }
      
      
}