From 2840347d60a93ad4cac680fbfeaef48d71d8fd68 Mon Sep 17 00:00:00 2001
From: myluckagain <myluckagain@gmail.com>
Date: Fri, 23 Mar 2018 18:36:49 +0500
Subject: [PATCH] BAEL-1612 (#3811)

* bael-1612

* line
---
 .../com/baeldung/finalkeyword/BlackCat.java   |  5 +++
 .../com/baeldung/finalkeyword/BlackDog.java   |  6 ++++
 .../java/com/baeldung/finalkeyword/Cat.java   | 18 ++++++++++
 .../java/com/baeldung/finalkeyword/Dog.java   |  7 ++++
 .../baeldung/finalkeyword/FinalUnitTest.java  | 33 +++++++++++++++++++
 5 files changed, 69 insertions(+)
 create mode 100644 core-java/src/main/java/com/baeldung/finalkeyword/BlackCat.java
 create mode 100644 core-java/src/main/java/com/baeldung/finalkeyword/BlackDog.java
 create mode 100644 core-java/src/main/java/com/baeldung/finalkeyword/Cat.java
 create mode 100644 core-java/src/main/java/com/baeldung/finalkeyword/Dog.java
 create mode 100644 core-java/src/test/java/com/baeldung/finalkeyword/FinalUnitTest.java

diff --git a/core-java/src/main/java/com/baeldung/finalkeyword/BlackCat.java b/core-java/src/main/java/com/baeldung/finalkeyword/BlackCat.java
new file mode 100644
index 0000000000..7a978d3c3d
--- /dev/null
+++ b/core-java/src/main/java/com/baeldung/finalkeyword/BlackCat.java
@@ -0,0 +1,5 @@
+package com.baeldung.finalkeyword;
+
+public class BlackCat {
+
+}
diff --git a/core-java/src/main/java/com/baeldung/finalkeyword/BlackDog.java b/core-java/src/main/java/com/baeldung/finalkeyword/BlackDog.java
new file mode 100644
index 0000000000..096bad3a96
--- /dev/null
+++ b/core-java/src/main/java/com/baeldung/finalkeyword/BlackDog.java
@@ -0,0 +1,6 @@
+package com.baeldung.finalkeyword;
+
+public class BlackDog extends Dog {
+    // public void sound() {
+    // }
+}
diff --git a/core-java/src/main/java/com/baeldung/finalkeyword/Cat.java b/core-java/src/main/java/com/baeldung/finalkeyword/Cat.java
new file mode 100644
index 0000000000..bfb24cd26f
--- /dev/null
+++ b/core-java/src/main/java/com/baeldung/finalkeyword/Cat.java
@@ -0,0 +1,18 @@
+package com.baeldung.finalkeyword;
+
+public final class Cat {
+
+    private int weight;
+
+    public int getWeight() {
+        return weight;
+    }
+
+    public void setWeight(int weight) {
+        this.weight = weight;
+    }
+
+    public void methodWithFinalArguments(final int x) {
+        // x=1;
+    }
+}
diff --git a/core-java/src/main/java/com/baeldung/finalkeyword/Dog.java b/core-java/src/main/java/com/baeldung/finalkeyword/Dog.java
new file mode 100644
index 0000000000..f1163b1f41
--- /dev/null
+++ b/core-java/src/main/java/com/baeldung/finalkeyword/Dog.java
@@ -0,0 +1,7 @@
+package com.baeldung.finalkeyword;
+
+public class Dog {
+    
+    public final void sound() {
+    }
+}
diff --git a/core-java/src/test/java/com/baeldung/finalkeyword/FinalUnitTest.java b/core-java/src/test/java/com/baeldung/finalkeyword/FinalUnitTest.java
new file mode 100644
index 0000000000..b09a9ec0bb
--- /dev/null
+++ b/core-java/src/test/java/com/baeldung/finalkeyword/FinalUnitTest.java
@@ -0,0 +1,33 @@
+package com.baeldung.finalkeyword;
+
+import org.junit.Test;
+import static org.junit.Assert.*;
+
+public class FinalUnitTest {
+
+    @Test
+    public void whenChangedFinalClassProperties_thenChanged() {
+        Cat cat = new Cat();
+        cat.setWeight(1);
+
+        assertEquals(1, cat.getWeight());
+
+    }
+
+    @Test
+    public void whenFinalVariableAssign_thenOnlyOnce() {
+        final int i;
+        i = 1;
+        // i=2;
+    }
+
+    @Test
+    public void whenChangedFinalReference_thenChanged() {
+
+        final Cat cat = new Cat();
+        // cat=new Cat();
+        cat.setWeight(5);
+
+        assertEquals(5, cat.getWeight());
+    }
+}