learn constructor chain in Java

fishercoder1534 · fishercoder1534 · commit 3b5b8d68c038 · 2016-08-06T09:10:13.000-07:00
diff --git a/RandomProblems/src/learnHeadFirstJava/Animal.java b/RandomProblems/src/learnHeadFirstJava/Animal.java
@@ -0,0 +1,11 @@
+package learnHeadFirstJava;
+
+
+public class Animal extends Creature {
+
+	public Animal() {
+		System.out.println("Animal constructor is getting called!");
+	}
+}
+
+
diff --git a/RandomProblems/src/learnHeadFirstJava/Creature.java b/RandomProblems/src/learnHeadFirstJava/Creature.java
@@ -0,0 +1,9 @@
+package learnHeadFirstJava;
+
+public abstract class Creature {
+
+	public Creature() {
+		System.out.println("Creature constructor is getting called!");
+	}
+
+}
diff --git a/RandomProblems/src/learnHeadFirstJava/Dog.java b/RandomProblems/src/learnHeadFirstJava/Dog.java
@@ -0,0 +1,17 @@
+package learnHeadFirstJava;
+
+public class Dog extends Pet {
+
+    public Dog() {
+        System.out.println("Dog constructor is getting called!");
+    }
+
+    public static void main(String[] args) {
+        Dog myDog = new Dog();
+        System.out
+                .println("\nThis is really calling as the book stated and as I expected,\n"
+                        + "each method gets put onto the stack, up to the end of the inheritance "
+                        + "tree, then the root constructor is called, "
+                        + "then down to the bottom subclass's constructor is called!\nNice!\nProgram ended.");
+    }
+}
diff --git a/RandomProblems/src/learnHeadFirstJava/Pet.java b/RandomProblems/src/learnHeadFirstJava/Pet.java
@@ -0,0 +1,10 @@
+package learnHeadFirstJava;
+
+
+public class Pet extends Animal {
+
+	public Pet() {
+		System.out.println("Pet constructor is getting called!");
+	}
+
+}
