()
| 64 | } |
| 65 | |
| 66 | public int removeFirst() { |
| 67 | if(size == 0) { |
| 68 | System.out.println("empty LL"); |
| 69 | return Integer.MIN_VALUE; |
| 70 | } else if(size == 1) { |
| 71 | int val = head.data; |
| 72 | head = tail = null; |
| 73 | size = 0; |
| 74 | return val; |
| 75 | } |
| 76 | int val = head.data; |
| 77 | head = head.next; |
| 78 | size--; |
| 79 | return val; |
| 80 | } |
| 81 | |
| 82 | public int removeLast() { |
| 83 | if(size == 0) { |