Merge pull request #18808 from sam-gardner/BAEL-9384-Flexible-constructor-bodies-in-java

BAEL-9384 Flexible constructor bodies in java

Author: davidmartinezbarua

core-java-modules/core-java-25/pom.xml

@@ -24,5 +24,4 @@
             </plugin>
         </plugins>
     </build>
-
-</project>
+</project>

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;
+    }
+
+}

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);
+    }
+
+}

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());
+    }
+
+}