diff --git a/core-java-modules/core-java-string-operations-8/src/test/java/com/baeldung/lastncharacters/LastNCharactersUnitTest.java b/core-java-modules/core-java-string-operations-8/src/test/java/com/baeldung/lastncharacters/LastNCharactersUnitTest.java
index 1dd45b0d89..d2b5227077 100644
--- a/core-java-modules/core-java-string-operations-8/src/test/java/com/baeldung/lastncharacters/LastNCharactersUnitTest.java
+++ b/core-java-modules/core-java-string-operations-8/src/test/java/com/baeldung/lastncharacters/LastNCharactersUnitTest.java
@@ -22,12 +22,14 @@ public class LastNCharactersUnitTest {
             .skip(s.length() - n)
             .map(String::valueOf)
             .collect(Collectors.joining());
+
         assertThat(result).isEqualTo("2024");
     }
 
     @Test
     void givenString_whenUsingOneArgSubstringMethod_thenObtainLastNCharacters() {
         int beginIndex = s.length() - n;
+
         assertThat(s.substring(beginIndex)).isEqualTo("2024");
     }
 
@@ -37,6 +39,7 @@ public class LastNCharactersUnitTest {
             .skip(s.length() - n)
             .map(String::valueOf)
             .collect(Collectors.joining());
+
         assertThat(result).isEqualTo("2024");
     }
 
@@ -49,6 +52,7 @@ public class LastNCharactersUnitTest {
     void givenString_whenUsingTwoArgSubstringMethod_thenObtainLastNCharacters() {
         int beginIndex = s.length() - n;
         String result = s.substring(beginIndex, s.length());
+
         assertThat(result).isEqualTo("2024");
     }