diff --git a/core-java-modules/core-java-lang-oop-patterns/src/main/java/com/baeldung/deep_shallow_copy/Author.java b/core-java-modules/core-java-lang-oop-patterns/src/main/java/com/baeldung/deep_shallow_copy/Author.java
new file mode 100644
index 000000000000..9018b581f76a
--- /dev/null
+++ b/core-java-modules/core-java-lang-oop-patterns/src/main/java/com/baeldung/deep_shallow_copy/Author.java
@@ -0,0 +1,31 @@
+package com.baeldung.deep_shallow_copy;
+
+/**
+ * @author amitkumar
+ */
+
+public class Author {
+    private String firstName;
+    private String lastName;
+
+    public Author(String firstName, String lastName) {
+        this.firstName = firstName;
+        this.lastName = lastName;
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+}
diff --git a/core-java-modules/core-java-lang-oop-patterns/src/main/java/com/baeldung/deep_shallow_copy/Blog.java b/core-java-modules/core-java-lang-oop-patterns/src/main/java/com/baeldung/deep_shallow_copy/Blog.java
new file mode 100644
index 000000000000..f33033f79594
--- /dev/null
+++ b/core-java-modules/core-java-lang-oop-patterns/src/main/java/com/baeldung/deep_shallow_copy/Blog.java
@@ -0,0 +1,55 @@
+package com.baeldung.deep_shallow_copy;
+
+/**
+ * @author amitkumar
+ */
+public class Blog implements Cloneable {
+    private String title;
+    private String content;
+    private Author author;
+
+    public Blog(String title, String content, Author author) {
+        this.title = title;
+        this.content = content;
+        this.author = author;
+    }
+
+    public Blog createCopy() {
+        Author author = this.getAuthor();
+        return new Blog(this.getTitle(), this.getContent(), new Author(author.getFirstName(), author.getLastName()));
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public Author getAuthor() {
+        return author;
+    }
+
+    public void setAuthor(Author author) {
+        this.author = author;
+    }
+
+    @Override
+    protected Object clone() throws CloneNotSupportedException {
+        Author author = new Author(this.getAuthor()
+          .getFirstName(), this.getAuthor()
+          .getLastName());
+        Blog cloned = (Blog) super.clone();
+        cloned.setAuthor(author);
+        return cloned;
+    }
+}
diff --git a/core-java-modules/core-java-lang-oop-patterns/src/test/java/com/baeldung/deep_shallow_copy/BlogTest.java b/core-java-modules/core-java-lang-oop-patterns/src/test/java/com/baeldung/deep_shallow_copy/BlogTest.java
new file mode 100644
index 000000000000..c9be46154567
--- /dev/null
+++ b/core-java-modules/core-java-lang-oop-patterns/src/test/java/com/baeldung/deep_shallow_copy/BlogTest.java
@@ -0,0 +1,88 @@
+package com.baeldung.deep_shallow_copy;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+
+import org.junit.jupiter.api.Test;
+
+/**
+ * @author amitkumar
+ */
+class BlogTest {
+
+    @Test
+    public void whenObjectIsCopiedUsingReference_thenShallowCopyIsCreated() {
+        Blog blog = new Blog("Effective Jave", "some content", new Author("Joshua", "Bloch"));
+        Blog newBlog = blog;
+        assertEquals(blog.getContent(), newBlog.getContent());
+        assertEquals(blog.getTitle(), newBlog.getTitle());
+        assertEquals(blog.getAuthor()
+          .getFirstName(), newBlog.getAuthor()
+          .getFirstName());
+        assertEquals(blog.getAuthor()
+          .getLastName(), newBlog.getAuthor()
+          .getLastName());
+        blog.setContent("new Content");
+        assertEquals(blog.getContent(), newBlog.getContent());
+        newBlog.setTitle("new Title");
+        assertEquals(blog.getTitle(), newBlog.getTitle());
+    }
+
+    @Test
+    public void whenObjectIsCopiedUsingCopyConstructor_thenDeepCopyIsCreated() {
+        Blog blog = new Blog("Effective Jave", "some content", new Author("Joshua", "Bloch"));
+        Blog newBlog = blog.createCopy();
+        assertEquals(blog.getContent(), newBlog.getContent());
+        assertEquals(blog.getTitle(), newBlog.getTitle());
+        assertEquals(blog.getAuthor()
+          .getFirstName(), newBlog.getAuthor()
+          .getFirstName());
+        assertEquals(blog.getAuthor()
+          .getLastName(), newBlog.getAuthor()
+          .getLastName());
+        blog.setContent("new Content");
+        assertNotEquals(blog.getContent(), newBlog.getContent());
+        newBlog.setTitle("new Title");
+        assertNotEquals(blog.getTitle(), newBlog.getTitle());
+    }
+
+    @Test
+    public void whenObjectIsCopiedUsingDefaultOverriddenCloneMethod_thenShallowCopyIsCreated() throws CloneNotSupportedException {
+        Blog blog = new Blog("Effective Jave", "some content", new Author("Joshua", "Bloch"));
+        Blog newBlog = (Blog) blog.clone();
+        assertEquals(blog.getContent(), newBlog.getContent());
+        assertEquals(blog.getTitle(), newBlog.getTitle());
+        assertEquals(blog.getAuthor()
+          .getFirstName(), newBlog.getAuthor()
+          .getFirstName());
+        assertEquals(blog.getAuthor()
+          .getLastName(), newBlog.getAuthor()
+          .getLastName());
+        blog.getAuthor()
+          .setLastName("last name");
+        assertNotEquals(blog.getAuthor()
+          .getLastName(), newBlog.getAuthor()
+          .getLastName());
+    }
+
+    @Test
+    public void whenObjectIsCopiedUsingCustomOverriddenCloneMethod_thenDeepCopyIsCreated() {
+        Blog blog = new Blog("Effective Jave", "some content", new Author("Joshua", "Bloch"));
+        Blog newBlog = blog.createCopy();
+        assertEquals(blog.getContent(), newBlog.getContent());
+        assertEquals(blog.getTitle(), newBlog.getTitle());
+        assertEquals(blog.getAuthor()
+          .getFirstName(), newBlog.getAuthor()
+          .getFirstName());
+        assertEquals(blog.getAuthor()
+          .getLastName(), newBlog.getAuthor()
+          .getLastName());
+        blog.setContent("new Content");
+        assertNotEquals(blog.getContent(), newBlog.getContent());
+        newBlog.setTitle("new Title");
+        assertNotEquals(blog.getTitle(), newBlog.getTitle());
+        blog.getAuthor().setLastName("last name");
+        assertNotEquals(blog.getAuthor().getLastName(), newBlog.getAuthor().getLastName());
+    }
+
+}
\ No newline at end of file