import java.util.Stack;
/**
*
* @author heerababu
*/
public class Stack_example {
public static void main(String args[])
{
Stack s1= new Stack();
s1.push(10);
s1.push(12);
s1.push(11);
System.out.println(s1.peek());//11
System.out.println(s1);//[10, 12, 11]
s1.pop();
System.out.println(s1);//[10, 12]
}
}
Output:
