// Stack class of package java.util.
import java.util.Stack;
import java.util.EmptyStackException;
public class StackTest
 {
 public static void main(String[] args)
 {
tack<Number> stack = new Stack<>(); // create a Stack
 // use push method
stack.push(12L);
14 System.out.println("Pushed 12L");
15 printStack(stack);
16 stack.push(34567);
17 System.out.println("Pushed 34567");
18 printStack(stack);
19stack.push(1.0F);
20 System.out.println("Pushed 1.0F");
21 printStack(stack);
22 stack.push(1234.5678); //
23 System.out.println("Pushed 1234.5678 ");
24 printStack(stack);
25
26 // remove items from stack
27 try
28 {
29 Number removedObject = null;
30
31 // pop elements from stack
32 while (true)
33 {
34 removedObject = stack.pop(); // use pop method

35 System.out.printf("Popped %s%n", removedObject);
36 printStack(stack);
37 }
38 }
39 catch (EmptyStackException emptyStackException)
40 {
emptyStackException.printStackTrace();
42 }
43 }
44
45 // display Stack contents
46 private static void printStack(Stack<Number> stack)
47 {
48 if (stack.isEmpty() )
49 System.out.printf("stack is empty%n%n"); // the stack is empty
50 else // stack is not empty
51 System.out.printf("stack contains: %s (top)%n", stack);
52 }
53 } // end class StackTest