| 1 | |
| 2 | /** |
| 3 | * |
| 4 | */ |
| 5 | public class Pile { |
| 6 | private int int_array[]; |
| 7 | private int array_size; |
| 8 | private int stack_head_index; |
| 9 | |
| 10 | /** |
| 11 | * set the size of the internal array |
| 12 | * @param int size the size of the array |
| 13 | */ |
| 14 | private void setSize(int size) { |
| 15 | array_size = size; |
| 16 | } |
| 17 | |
| 18 | /** |
| 19 | * get the size of the internal array |
| 20 | * @return the integer size of the internal array |
| 21 | */ |
| 22 | private int getSize() { |
| 23 | return array_size; |
| 24 | } |
| 25 | |
| 26 | /** |
| 27 | * set the stack head index |
| 28 | * @param int index the stack head index |
| 29 | */ |
| 30 | private void setHeadIndex(int index) { |
| 31 | stack_head_index = index; |
| 32 | } |
| 33 | |
| 34 | /** |
| 35 | * get the stack head current index |
| 36 | * @return the integer stack head index |
| 37 | */ |
| 38 | private int getHeadIndex() { |
| 39 | return stack_head_index; |
| 40 | } |
| 41 | |
| 42 | /** |
| 43 | * [Pile description] |
| 44 | * @param int size [description] |
| 45 | */ |
| 46 | Pile(int size) { |
| 47 | int_array = new int[size]; |
| 48 | setSize(size); |
| 49 | setHeadIndex(0); |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * [empiler description] |
| 54 | * @param int value [description] |
| 55 | */ |
| 56 | public void empiler(int value) { |
| 57 | if (!plein()) { |
| 58 | int_array[stack_head_index] = value; |
| 59 | stack_head_index++; |
| 60 | } else { |
| 61 | System.out.println("La pile est pleine"); |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | /** |
| 66 | * [depiler description] |
| 67 | * @return [description] |
| 68 | */ |
| 69 | public int depiler() { |
| 70 | if (!vide()) { |
| 71 | stack_head_index--; |
| 72 | return int_array[stack_head_index]; |
| 73 | } else { |
| 74 | return -1; |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | /** |
| 79 | * [plein description] |
| 80 | * @return [description] |
| 81 | */ |
| 82 | private boolean plein() { |
| 83 | return (getHeadIndex() >= getSize()); |
| 84 | } |
| 85 | |
| 86 | /** |
| 87 | * [vide description] |
| 88 | * @return [description] |
| 89 | */ |
| 90 | private boolean vide() { |
| 91 | return (getHeadIndex() == 0); |
| 92 | } |
| 93 | |
| 94 | /** |
| 95 | * [afficher description] |
| 96 | */ |
| 97 | public void afficher() { |
| 98 | for (int i = 0; i < getHeadIndex(); i++) { |
| 99 | System.out.println("element " + i + " " + int_array[i]); |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * The main() function |
| 105 | * @param String[] args main() function arguments array |
| 106 | */ |
| 107 | public static void main(String[] args) { |
| 108 | Pile stack = new Pile(5); |
| 109 | |
| 110 | stack.empiler(3); |
| 111 | stack.empiler(5); |
| 112 | stack.empiler(4); |
| 113 | stack.empiler(7); |
| 114 | stack.empiler(8); |
| 115 | |
| 116 | stack.afficher(); |
| 117 | |
| 118 | System.out.println("Stack index " + stack.getHeadIndex()); |
| 119 | System.out.println("Stack head value " + stack.depiler()); |
| 120 | System.out.println("Stack index " + stack.getHeadIndex()); |
| 121 | System.out.println("Stack head value " + stack.depiler()); |
| 122 | System.out.println("Stack index " + stack.getHeadIndex()); |
| 123 | System.out.println("Stack head value " + stack.depiler()); |
| 124 | System.out.println("Stack index " + stack.getHeadIndex()); |
| 125 | System.out.println("Stack head value " + stack.depiler()); |
| 126 | System.out.println("Stack index " + stack.getHeadIndex()); |
| 127 | System.out.println("Stack head value " + stack.depiler()); |
| 128 | System.out.println("Stack index " + stack.getHeadIndex()); |
| 129 | System.out.println("Stack head value " + stack.depiler()); |
| 130 | System.out.println("Stack index " + stack.getHeadIndex()); |
| 131 | |
| 132 | stack.afficher(); |
| 133 | } |
| 134 | } |