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ulrich/FizzBuzz.java

Created November 13, 2020 16:03
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Fizzbuz Java style 1
Raw
FizzBuzz.java
package tech.ingenico.ah;
import java.util.function.Function;
import java.util.stream.IntStream;
public class FizzBuzz {
public static final Function<Integer, Integer> MODULO_3 = v -> v % 3;
public static final Function<Integer, Integer> MODULO_5 = v -> v % 5;
public static void run(IntStream intStream) {
intStream.parallel().forEach(value -> {
if (siDivisiblePar(MODULO_3, value) && siDivisiblePar(MODULO_5, value)) {
System.out.println("FizzBuzz: " + value);
return;
}
if (siDivisiblePar(MODULO_3, value)) {
System.out.println("Fizz: " + value);
return;
}
if (siDivisiblePar(MODULO_5, value)) {
System.out.println("Buzz: " + value);
}
});
}
private static boolean siDivisiblePar(Function<Integer, Integer> f, int valeur) {
return f.apply(valeur) == 0;
}
}
Raw
FizzBuzzTest.java
package tech.ingenico.ah;
import org.junit.jupiter.api.Test;
import java.util.stream.IntStream;
public class FizzBuzzTest {
@Test
public void shouldDisplay() {
try (IntStream intStream = IntStream.rangeClosed(0, 1_000)) {
FizzBuzz.run(intStream);
}
}
}
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