Enumerable.java
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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;
}
}