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Dec 18th, 2017
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  1. import java.util.LinkedList;
  2.  
  3. public class MyStack implements Push {
  4.  
  5. LinkedList<Integer> llist = new LinkedList<Integer>();
  6.  
  7. /**
  8. * Empty constructor
  9. * @return
  10. */
  11. public void Stack() {
  12. }
  13.  
  14. public boolean isEmpty() {
  15.  
  16. return llist.isEmpty();
  17. }
  18.  
  19. public Object top() {
  20.  
  21. return llist.getLast();
  22. }
  23.  
  24. public Object length() {
  25.  
  26. return llist.size();
  27. }
  28.  
  29. public void pop() {
  30. llist.removeLast();
  31. }
  32.  
  33. public void push(int i) {
  34. llist.add(i);
  35. }
  36. }
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