Data commit

Task/Nth/Java/nth-2.java

@@ -0,0 +1,48 @@
+package nth;
+
+import java.util.stream.IntStream;
+import java.util.stream.Stream;
+
+public interface Nth {
+  public static String suffix(int n){
+    if(n % 100 / 10 == 1){
+      return "th"; //teens are all "th"
+    }
+    switch(n % 10){
+      case 1: return "st";
+      case 2: return "nd";
+      case 3: return "rd";
+      default: return "th"; //most of the time it should be "th"
+    }
+  }
+
+  public static void print(int start, int end) {
+    IntStream.rangeClosed(start, end)
+      .parallel()
+      .mapToObj(i -> i + suffix(i) + " ")
+      .reduce(String::concat)
+      .ifPresent(System.out::println)
+    ;
+  }
+
+  public static void print(int[] startAndEnd) {
+    print(startAndEnd[0], startAndEnd[1]);
+  }
+
+  public static int[] startAndEnd(int start, int end) {
+    return new int[] {
+      start,
+      end
+    };
+  }
+
+  public static void main(String... arguments){
+    Stream.of(
+      startAndEnd(0, 25),
+      startAndEnd(250, 265),
+      startAndEnd(1000, 1025)
+    )
+      .forEach(Nth::print)
+    ;
+  }
+}