Find Chess960 starting position identifier: Difference between revisions

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@@ Line 599: / Line 599: @@
 		}
+		List<Integer> rookKing = List.of(aPosition.indexOf('R'), aPosition.indexOf('K'), aPosition.lastIndexOf('R'));
-		List<Integer> rookAndKing =
+		if ( ! ( rookKing.get(0) < rookKing.get(1) && rookKing.get(1) < rookKing.get(2) ) ) {
-            List.of(aPosition.indexOf('R'), aPosition.indexOf('K'), aPosition.lastIndexOf('R'));
-		if ( ! ( rookAndKing.get(0) < rookAndKing.get(1) && rookAndKing.get(1) < rookAndKing.get(2) ) ) {
 			throw new AssertionError("The king must be between the two rooks.");
 		}
@@ Line 622: / Line 621: @@
 	private static String retainIf(String aText, Predicate<Character> aPredicate) {
-		return aText.chars().mapToObj( i -> (char) i ).filter(aPredicate)
+		return aText.chars()
+				    .mapToObj( i -> (char) i )
-            .map(String::valueOf).reduce("", String::concat);
+				    .filter(aPredicate)
+				    .map(String::valueOf)
+				    .reduce("", String::concat);
 	}