()
| 68 | } |
| 69 | |
| 70 | public int removeFirst() { |
| 71 | if(size == 0) { |
| 72 | System.out.println("LL is empty"); |
| 73 | return Integer.MIN_VALUE; |
| 74 | } else if(size == 1) { |
| 75 | int val = head.data; |
| 76 | head = tail = null; |
| 77 | size = 0; |
| 78 | return val; |
| 79 | } |
| 80 | int val = head.data; |
| 81 | head = head.next; |
| 82 | size--; |
| 83 | return val; |
| 84 | } |
| 85 | |
| 86 | public int removeLast() { |
| 87 | if(size == 0) { |