Blame view
src/Enumerable.java
1.87 KB
1b1e928cc initial import of... |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 |
import java.util.ArrayList; import java.util.Collection; public class Enumerable { public static <T, U> Collection<U> map(Collection<T> c, Filter<T, U> f) { ArrayList<U> result = new ArrayList<U>(); for (T e : c) { result.add(f.apply(e)); } return result; } public static <T, U> Collection<U> map(T[] c, Filter<T, U> f) { ArrayList<U> result = new ArrayList<U>(); for (T e : c) { result.add(f.apply(e)); } return result; } public static <T> Collection<T> select(Collection<T> c, Predicate<T> p) { ArrayList<T> result = new ArrayList<T>(); for (T e : c) { if (p.apply(e)) { result.add(e); } } return result; } public static <T> Collection<T> select(T[] c, Predicate<T> p) { ArrayList<T> result = new ArrayList<T>(); for (T e : c) { if (p.apply(e)) { result.add(e); } } return result; } public static <T> Collection<T> reject(Collection<T> c, Predicate<T> p) { ArrayList<T> result = new ArrayList<T>(); for (T e : c) { if (! p.apply(e)) { result.add(e); } } return result; } public static <T> Collection<T> reject(T[] c, Predicate<T> p) { ArrayList<T> result = new ArrayList<T>(); for (T e : c) { if (! p.apply(e)) { result.add(e); } } return result; } public static <T> boolean all(Collection<T> c, Predicate<T> p) { for (T e : c) { if (! p.apply(e)) { return false; } } return true; } public static <T> boolean all(T[] c, Predicate<T> p) { for (T e : c) { if (! p.apply(e)) { return false; } } return true; } public static <T> boolean any(Collection<T> c, Predicate<T> p) { for (T e : c) { if (p.apply(e)) { return true; } } return false; } public static <T> boolean any(T[] c, Predicate<T> p) { for (T e : c) { if (p.apply(e)) { return true; } } return false; } } |