Demo.java

/*
Copyright (C) Deepali Srivastava - All Rights Reserved
This code is part of DSA course available on CourseGalaxy.com    
*/

package stackArray;

import java.util.Scanner;

public class Demo 
{
	public static void main(String[] args) 
	{
		int choice,x;
		Scanner scan = new Scanner(System.in);	
		
		StackA st = new StackA(8); 

		while(true)
		{
			System.out.println("1.Push an element on the stack");
			System.out.println("2.Pop an element from the stack");
			System.out.println("3.Display the top element");
			System.out.println("4.Display all stack elements");
			System.out.println("5.Display size of the stack"); 
			System.out.println("6.Quit");
			System.out.println("Enter your choice : ");
			choice = scan.nextInt();
			
			if(choice==6)
				break;
			
			switch(choice)
			{
			 case 1 :
				System.out.println("Enter the element to be pushed : ");
				x=scan.nextInt();
				st.push(x);
				break;
			 case 2:
				x=st.pop();
				System.out.println("Popped element is : " + x);
				break;
			 case 3:
				System.out.println("Element at the top is : " + st.peek());
				break;
			 case 4:
				st.display();
				break;
			 case 5:
				System.out.println("Size of stack " + st.size());
				break;
			 default:
				System.out.println("Wrong choice");
			}
			System.out.println("");
		}
		scan.close();
	}
}