minor formatting work

core-java/src/main/java/com/baeldung/generics/Building.java

@@ -4,9 +4,9 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 public class Building {
-	private static final Logger LOGGER = LoggerFactory.getLogger(Building.class);
+    private static final Logger LOGGER = LoggerFactory.getLogger(Building.class);
 
-	public void paint() {
-		LOGGER.info("Painting Building");
-	}
+    public void paint() {
+        LOGGER.info("Painting Building");
+    }
 }

core-java/src/main/java/com/baeldung/generics/Generics.java

@@ -15,11 +15,9 @@ public class Generics {
     // definition of a generic method
     public static <T, G> List<G> fromArrayToList(T[] a, List<G> list, Function<T, G> mapperFunction) {
         List<T> listWithTypeT = Arrays.stream(a).collect(Collectors.toList());
-        return listWithTypeT.stream().map(mapperFunction)
-          .collect(Collectors.toList());
+        return listWithTypeT.stream().map(mapperFunction).collect(Collectors.toList());
     }
 
-
     // example of a generic method that has Number as an upper bound for T
     public static <T extends Number> List<T> fromArrayToListWithUpperBound(T[] a) {
         return Arrays.stream(a).collect(Collectors.toList());