Revision of Java FizzBuzz Like no Other

1 file changed, 34 insertions

leonfizzbuzz.java(file created)

		@@ -0,0 +1,34 @@
1	+	package com.github.curriculeon;
2	+
3	+	import java.util.*;
4	+	import java.util.function.Predicate;
5	+	import java.util.stream.Collectors;
6	+	import java.util.stream.IntStream;
7	+
8	+
9	+	// And https://github.com/Git-Leon personal memory optimizations of above.
10	+	// https://github.com/Git-Leon/FizzBuzz/blob/master/src/main/java/com/github/curriculeon/Main.java
11	+
12	+	public class Main {
13	+	public static void main(String[] args) {
14	+	System.out.println(
15	+	fizzBuzz(
16	+	IntStream.rangeClosed(1, 100).toArray(),
17	+	new LinkedHashMap<Predicate<Integer>, String>() {{
18	+	put(x1 -> x1 % 3 == 0, "Fizz");
19	+	put(x -> x % 5 == 0, "Buzz");
20	+	}}
21	+	)
22	+	);
23	+	}
24	+
25	+	private static String fizzBuzz(int[] arr, Map<Predicate<Integer>, String> preds) {
26	+	return Arrays.stream(arr)
27	+	.mapToObj(x -> preds.entrySet().stream()
28	+	.filter(entry -> entry.getKey().test(x))
29	+	.map(Map.Entry::getValue)
30	+	.reduce(String::concat)
31	+	.orElse(String.valueOf(x)))
32	+	.collect(Collectors.joining(" "));
33	+	}
34	+	}

1 file changed, 29 insertions

fizbuzz.java(file created)

		@@ -0,0 +1,29 @@
1	+	import java.util.*;
2	+	import java.util.function.Predicate;
3	+	import java.util.stream.Collectors;
4	+	import java.util.stream.IntStream;
5	+
6	+	// wowey, wow, wow.
7	+
8	+	public class Main {
9	+	public static void main(String[] args) {
10	+	int[] arr = IntStream.rangeClosed(1, 100).toArray();
11	+
12	+	Map<Predicate<Integer>, String> preds = new LinkedHashMap<>();
13	+	preds.put(x -> x % 3 == 0, "Fizz");
14	+	preds.put(x -> x % 5 == 0, "Buzz");
15	+
16	+	System.out.println(fizzBuzz(arr, preds));
17	+	}
18	+
19	+	private static String fizzBuzz(int[] arr, Map<Predicate<Integer>, String> preds) {
20	+	return Arrays.stream(arr)
21	+	.mapToObj(x -> preds.entrySet().stream()
22	+	.filter(entry -> entry.getKey().test(x))
23	+	.map(Map.Entry::getValue)
24	+	.reduce(String::concat)
25	+	.orElse(String.valueOf(x)))
26	+	.collect(Collectors.joining(" "));
27	+	}
28	+	}
29	+

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