diff --git a/core-java-modules/core-java-25/pom.xml b/core-java-modules/core-java-25/pom.xml
index 6455972a0cce..645f23f0accd 100644
--- a/core-java-modules/core-java-25/pom.xml
+++ b/core-java-modules/core-java-25/pom.xml
@@ -24,5 +24,4 @@
             </plugin>
         </plugins>
     </build>
-
-</project>
\ No newline at end of file
+</project>
diff --git a/core-java-modules/core-java-25/src/main/java/com/baeldung/flexibleconstructorbodies/Coffee.java b/core-java-modules/core-java-25/src/main/java/com/baeldung/flexibleconstructorbodies/Coffee.java
new file mode 100644
index 000000000000..c6e5ce3c69b3
--- /dev/null
+++ b/core-java-modules/core-java-25/src/main/java/com/baeldung/flexibleconstructorbodies/Coffee.java
@@ -0,0 +1,17 @@
+package com.baeldung.flexibleconstructorbodies;
+
+public class Coffee {
+
+    int water;
+    int milk;
+
+    public Coffee(int water, int milk) {
+        this.water = water;
+        this.milk = milk;
+    }
+
+    public int getTotalVolume() {
+        return water + milk;
+    }
+
+}
diff --git a/core-java-modules/core-java-25/src/main/java/com/baeldung/flexibleconstructorbodies/SmallCoffee.java b/core-java-modules/core-java-25/src/main/java/com/baeldung/flexibleconstructorbodies/SmallCoffee.java
new file mode 100644
index 000000000000..5961bf13526b
--- /dev/null
+++ b/core-java-modules/core-java-25/src/main/java/com/baeldung/flexibleconstructorbodies/SmallCoffee.java
@@ -0,0 +1,17 @@
+package com.baeldung.flexibleconstructorbodies;
+
+public class SmallCoffee extends Coffee {
+
+    String topping;
+
+    public SmallCoffee(int water, int milk, String topping) {
+        int maxCupVolume = 100;
+        int totalVolume = water + milk;
+        if(totalVolume > maxCupVolume) {
+            throw new IllegalArgumentException();
+        }
+        this.topping = topping;
+        super(water, milk);
+    }
+
+}
diff --git a/core-java-modules/core-java-25/src/test/java/FlexibleConstructorBodiesTest.java b/core-java-modules/core-java-25/src/test/java/FlexibleConstructorBodiesTest.java
new file mode 100644
index 000000000000..b5005895476e
--- /dev/null
+++ b/core-java-modules/core-java-25/src/test/java/FlexibleConstructorBodiesTest.java
@@ -0,0 +1,15 @@
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import org.junit.Test;
+
+import com.baeldung.flexibleconstructorbodies.SmallCoffee;
+
+public class FlexibleConstructorBodiesTest {
+
+    @Test
+    public void test() {
+        SmallCoffee smallCoffee = new SmallCoffee(30,40, "none");
+        assertEquals(70, smallCoffee.getTotalVolume());
+    }
+
+}