diff --git a/core-java-modules/core-java-collections-set/src/main/java/com/baeldung/set/CopySets.java b/core-java-modules/core-java-collections-set/src/main/java/com/baeldung/set/CopySets.java
index 011ccb9b56..0a173cb772 100644
--- a/core-java-modules/core-java-collections-set/src/main/java/com/baeldung/set/CopySets.java
+++ b/core-java-modules/core-java-collections-set/src/main/java/com/baeldung/set/CopySets.java
@@ -2,7 +2,6 @@ package com.baeldung.set;
 
 import java.io.Serializable;
 import java.util.HashSet;
-import java.util.Objects;
 import java.util.Set;
 import java.util.stream.Collectors;
 
@@ -12,63 +11,54 @@ import com.google.gson.Gson;
 
 public class CopySets {
 
-    public static <T> Set<T> copyByConstructor(Set<T> original) {
-        Set<T> copy = new HashSet<>(original);
-        return copy;
-    }
+	// Copy Constructor
+	public static <T> Set<T> copyByConstructor(Set<T> original) {
+		Set<T> copy = new HashSet<>(original);
+		return copy;
+	}
 
-    public static <T> Set<T> copyBySetAddAll(Set<T> original) {
-        Set<T> copy = new HashSet<>();
-        copy.addAll(original);
-        return copy;
-    }
+	// Set.addAll
+	public static <T> Set<T> copyBySetAddAll(Set<T> original) {
+		Set<T> copy = new HashSet<>();
+		copy.addAll(original);
+		return copy;
+	}
 
-    public static <T> Set<T> copyBySetClone(HashSet<T> original) {
-        Set<T> copy = (Set<T>) original.clone();
-        return copy;
-    }
+	// Set.clone
+	public static <T> Set<T> copyBySetClone(HashSet<T> original) {
+		Set<T> copy = (Set<T>) original.clone();
+		return copy;
+	}
 
-    public static <T> Set<T> copyByJson(Set<T> original) {
-        Gson gson = new Gson();
-        String jsonStr = gson.toJson(original);
-        Set<T> copy = gson.fromJson(jsonStr, Set.class);
+	// JSON
+	public static <T> Set<T> copyByJson(Set<T> original) {
+		Gson gson = new Gson();
+		String jsonStr = gson.toJson(original);
+		Set<T> copy = gson.fromJson(jsonStr, Set.class);
 
-        return copy;
-    }
+		return copy;
+	}
 
-    public static <T extends Serializable> Set<T> copyByApacheCommonsLang(Set<T> original) {
-        Set<T> copy = new HashSet<>();
-        for (T item : original) {
-            copy.add((T) SerializationUtils.clone(item));
-        }
-        return copy;
-    }
+	// Apache Commons Lang
+	public static <T extends Serializable> Set<T> copyByApacheCommonsLang(Set<T> original) {
+		Set<T> copy = new HashSet<>();
+		for (T item : original) {
+			copy.add((T) SerializationUtils.clone(item));
+		}
+		return copy;
+	}
 
-    public static <T> void copyByStreamsAPI(Set<T> original) {
-        Set<T> copy1 = original.stream()
-            .collect(Collectors.toSet());
+	// Collectors.toSet
+	public static <T extends Serializable> Set<T> copyByCollectorsToSet(Set<T> original) {
+		Set<T> copy = original.stream().collect(Collectors.toSet());
 
-        // Skip the first element
-        Set<T> copy2 = original.stream()
-            .skip(1)
-            .collect(Collectors.toSet());
+		return copy;
+	}
 
-        // Filter by comparing the types and attributes
-        Set<T> copy3 = original.stream()
-            .filter(f -> f.getClass()
-                .equals(Integer.class))
-            .collect(Collectors.toSet());
-
-        // Null check in case of expecting null values
-        Set<T> copy4 = original.stream()
-            .filter(Objects::nonNull)
-            .collect(Collectors.toSet());
-
-    }
-
-    public static <T> Set<T> copyByJava8(Set<T> original) {
-        Set<T> copy = Set.copyOf(original);
-        return copy;
-    }
+	// Using Java 10
+	public static <T> Set<T> copyBySetCopyOf(Set<T> original) {
+		Set<T> copy = Set.copyOf(original);
+		return copy;
+	}
 
 }