diff --git a/core-java-modules/core-java-lang-2/README.md b/core-java-modules/core-java-lang-2/README.md
index 635746251f..c043d29811 100644
--- a/core-java-modules/core-java-lang-2/README.md
+++ b/core-java-modules/core-java-lang-2/README.md
@@ -13,4 +13,4 @@ This module contains articles about core features in the Java language
 - [Comparing Long Values in Java](https://www.baeldung.com/java-compare-long-values)
 - [Comparing Objects in Java](https://www.baeldung.com/java-comparing-objects)
 - [Casting int to Enum in Java](https://www.baeldung.com/java-cast-int-to-enum)
-- [[<-- Prev]](/core-java-modules/core-java-lang)
+[[ <-- Prev]](/core-java-modules/core-java-lang)[[Next --> ]](/core-java-modules/core-java-lang-3)
diff --git a/core-java-modules/core-java-lang-3/README.md b/core-java-modules/core-java-lang-3/README.md
index a7f9bc01a2..f496b74bfb 100644
--- a/core-java-modules/core-java-lang-3/README.md
+++ b/core-java-modules/core-java-lang-3/README.md
@@ -2,5 +2,4 @@
 
 This module contains articles about core features in the Java language
 
-### Relevant Articles: 
 - [[<-- Prev]](/core-java-modules/core-java-lang-2)
diff --git a/core-java-modules/core-java-lang-3/pom.xml b/core-java-modules/core-java-lang-3/pom.xml
index ecde534193..2a2856a80a 100644
--- a/core-java-modules/core-java-lang-3/pom.xml
+++ b/core-java-modules/core-java-lang-3/pom.xml
@@ -8,6 +8,7 @@
     <version>0.1.0-SNAPSHOT</version>
     <name>core-java-lang-3</name>
     <packaging>jar</packaging>
+
     <parent>
         <groupId>com.baeldung.core-java-modules</groupId>
         <artifactId>core-java-modules</artifactId>
@@ -16,7 +17,12 @@
     </parent>
 
     <dependencies>
-        
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj.version}</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>
@@ -30,7 +36,7 @@
     </build>
 
     <properties>
-        
+        <assertj.version>3.12.2</assertj.version>
     </properties>
-
+      
 </project>
diff --git a/core-java-modules/core-java-lang-3/src/test/java/com/baeldung/stringtoboolean/StringToBooleanUnitTest.java b/core-java-modules/core-java-lang-3/src/test/java/com/baeldung/stringtoboolean/StringToBooleanUnitTest.java
new file mode 100644
index 0000000000..8b10d78fe3
--- /dev/null
+++ b/core-java-modules/core-java-lang-3/src/test/java/com/baeldung/stringtoboolean/StringToBooleanUnitTest.java
@@ -0,0 +1,30 @@
+package com.baeldung.stringtoboolean;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import org.junit.Test;
+
+public class StringToBooleanUnitTest {
+    
+    @Test
+    public void givenStringTrue_whenUsingParseBoolean_thenTrue() {
+        assertThat(Boolean.parseBoolean("true")).isTrue();
+    }
+
+    @Test
+    public void givenStringTrue_whenUsingValueOf_thenTrue() {
+        assertThat(Boolean.valueOf("true")).isTrue();
+    }
+
+    @Test
+    public void givenStringTrue_whenUsingGetBoolean_thenFalse() {
+        assertThat(Boolean.getBoolean("true")).isFalse();
+    }
+
+    @Test
+    public void givenSystemProperty_whenUsingGetBoolean_thenTrue() {
+        System.setProperty("CODING_IS_FUN", "true");
+        
+        assertThat(Boolean.getBoolean("CODING_IS_FUN")).isTrue();
+    }
+}
diff --git a/core-java-modules/core-java-lang/README.md b/core-java-modules/core-java-lang/README.md
index 9166b93b7f..963a1e623e 100644
--- a/core-java-modules/core-java-lang/README.md
+++ b/core-java-modules/core-java-lang/README.md
@@ -13,4 +13,5 @@ This module contains articles about core features in the Java language
 - [Retrieving a Class Name in Java](https://www.baeldung.com/java-class-name)
 - [The Java continue and break Keywords](https://www.baeldung.com/java-continue-and-break)
 - [Infinite Loops in Java](https://www.baeldung.com/infinite-loops-java)
-- [[More --> ]](/core-java-modules/core-java-lang-2)
+
+[[Next --> ]](/core-java-modules/core-java-lang-2)
diff --git a/core-java-modules/pom.xml b/core-java-modules/pom.xml
index d01a7cc792..4757ddea72 100644
--- a/core-java-modules/pom.xml
+++ b/core-java-modules/pom.xml
@@ -85,6 +85,7 @@
         <module>core-java-lambdas</module>
         <module>core-java-lang</module>
         <module>core-java-lang-2</module>
+        <module>core-java-lang-3</module>
         <module>core-java-lang-math</module>
         <module>core-java-lang-math-2</module>
         <module>core-java-lang-oop-constructors</module>