@@ -0,0 +1,34 @@
+package com.hellokoding.java.java14;
+
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class PatternMatchingForInstanceOf {
+    public String instanceOf(Object o) {
+        if (o instanceof Book) {
+            Book b = (Book) o;
+            if (b.id() == 1) {
+                return b.title();
+            }
+        }
+
+        return "";
+    }
+
+    public String instanceOfWithPatternMatching(Object o) {
+        if (o instanceof Book b && b.id() == 1) {
+            return b.title();
+        } else {
+            return "";
+        }
+    }
+
+    @Test
+    public void testInstanceOf() {
+        Book b = new Book(1, "Java 14");
+        String s = instanceOfWithPatternMatching(b);
+
+        assertThat(s).isEqualTo("Java 14");
+    }
+}
@@ -0,0 +1,20 @@
+package com.hellokoding.java.java14;
+
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class Records {
+    @Test
+    public void testRecord() {
+        Book b = new Book(1, "Java 14");
+        int id = b.id();
+        String title = b.title();
+
+        assertThat(id).isEqualTo(1);
+        assertThat(title).isEqualTo("Java 14");
+    }
+}
+
+record Book(int id, String title) {
+}