checking lint issue

Signed-off-by: JeevaRamanathan <jeevaramanathan.m@infosys.com>

Author: JeevaRamanathan

src/main/java/com/thealgorithms/strings/Isogram.java

@@ -80,4 +80,4 @@ public static boolean isIsogramByLength(String str) {
         }
         return uniqueChars.size() == str.length();
     }
-}
+ }

src/test/java/com/thealgorithms/strings/IsogramTest.java

@@ -21,6 +21,7 @@ private static Stream<IsogramTestCase> isogramArrayTestData() {
             // Not isograms - letters repeat
             new IsogramTestCase("hello", false), new IsogramTestCase("programming", false), new IsogramTestCase("java", false), new IsogramTestCase("coffee", false), new IsogramTestCase("book", false), new IsogramTestCase("letter", false), new IsogramTestCase("mississippi", false),
             new IsogramTestCase("google", false),
+ 
             // Edge cases
             new IsogramTestCase("", true), new IsogramTestCase("a", true), new IsogramTestCase("ab", true), new IsogramTestCase("abc", true), new IsogramTestCase("aa", false), new IsogramTestCase("abcdefghijklmnopqrstuvwxyz", true),
 
@@ -44,7 +45,6 @@ private static Stream<IsogramTestCase> isogramLengthTestData() {
             // Case insensitive
             new IsogramTestCase("Python", true), new IsogramTestCase("BACKGROUND", true), new IsogramTestCase("Hello", false), new IsogramTestCase("PROGRAMMING", false),
 
-
             // Strings with symbols and numbers
             new IsogramTestCase("abc@def", true), // all characters unique
             new IsogramTestCase("test-case", false), // 't', 's', 'e' repeat