Java-COde/StackTester.java at master · BearSolitary/Java-COde · GitHub

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import java.util.Scanner;
public class StackTester
{
   /**
    * Tests the LinkedlistStack class.
    *
    * @param argument not used
    */
   public static void main(String[] argument)
   {
       Scanner scan = new Scanner(System.in);
        /* Creating object of class linkedStack */
        LinkListStack ls = new LinkListStack();
        /* Perform Stack Operations */
        System.out.println("Linked Stack Test\n");
        char ch;
        do
        {
            System.out.println("\nLinked Stack Operations");
            System.out.println("1. push");
            System.out.println("2. pop");
            System.out.println("3. peek");
            System.out.println("4. check empty");
            System.out.println("5. size");
            int choice = scan.nextInt();
            switch (choice)
            {
            case 1 :
                System.out.println("Enter integer element to push");
                ls.push( scan.nextInt() );
                break;
            case 2 :
                try
                {
                    System.out.println("Popped Element = "+ ls.pop());
                }
                catch (Exception e)
                {
                    System.out.println("Error : " + e.getMessage());
                }
                break;
            case 3 :
                try
                {
                    System.out.println("Peek Element = "+ ls.peek());
                }
                catch (Exception e)
                {
                    System.out.println("Error : " + e.getMessage());
                }
                break;
            case 4 :
                System.out.println("Empty status = "+ ls.isEmpty());
                break;
            case 5 :
                System.out.println("Size = "+ ls.getSize());
                break;
            case 6 :
                System.out.println("Stack = ");
                ls.display();
                break;
            default :
                System.out.println("Wrong Entry \n ");
                break;
            }
            /* display stack */
            ls.display();
            System.out.println("\nDo you want to continue (Type y or n) \n");
            ch = scan.next().charAt(0);

        } while (ch == 'Y'|| ch == 'y');

   } // end of main(String[] argument)

} // end of class StackTester