| 4 | import java.awt.*; |
| 5 | |
| 6 | public class AssortedMethods { |
| 7 | public static int randomInt(int n) { |
| 8 | return (int) (Math.random() * n); |
| 9 | } |
| 10 | |
| 11 | public static int randomIntInRange(int min, int max) { |
| 12 | return randomInt(max + 1 - min) + min; |
| 13 | } |
| 14 | |
| 15 | public static boolean randomBoolean() { |
| 16 | return randomIntInRange(0, 1) == 0; |
| 17 | } |
| 18 | |
| 19 | public static boolean randomBoolean(int percentTrue) { |
| 20 | return randomIntInRange(1, 100) <= percentTrue; |
| 21 | } |
| 22 | |
| 23 | public static int[][] randomMatrix(int M, int N, int min, int max) { |
| 24 | int[][] matrix = new int[M][N]; |
| 25 | for (int i = 0; i < M; i++) { |
| 26 | for (int j = 0; j < N; j++) { |
| 27 | matrix[i][j] = randomIntInRange(min, max); |
| 28 | } |
| 29 | } |
| 30 | return matrix; |
| 31 | } |
| 32 | |
| 33 | public static int[] randomArray(int N, int min, int max) { |
| 34 | int[] array = new int[N]; |
| 35 | for (int j = 0; j < N; j++) { |
| 36 | array[j] = randomIntInRange(min, max); |
| 37 | } |
| 38 | return array; |
| 39 | } |
| 40 | |
| 41 | public static LinkedListNode randomLinkedList(int N, int min, int max) { |
| 42 | LinkedListNode root = new LinkedListNode(randomIntInRange(min, max), |
| 43 | null, null); |
| 44 | LinkedListNode prev = root; |
| 45 | for (int i = 1; i < N; i++) { |
| 46 | int data = randomIntInRange(min, max); |
| 47 | LinkedListNode next = new LinkedListNode(data, null, null); |
| 48 | prev.setNext(next); |
| 49 | prev = next; |
| 50 | } |
| 51 | return root; |
| 52 | } |
| 53 | |
| 54 | public static LinkedListNode linkedListWithValue(int N, int value) { |
| 55 | LinkedListNode root = new LinkedListNode(value, null, null); |
| 56 | LinkedListNode prev = root; |
| 57 | for (int i = 1; i < N; i++) { |
| 58 | LinkedListNode next = new LinkedListNode(value, null, null); |
| 59 | prev.setNext(next); |
| 60 | prev = next; |
| 61 | } |
| 62 | return root; |
| 63 | } |
nothing calls this directly
no outgoing calls
no test coverage detected