diff --git a/core-java/src/main/java/com/baeldung/java/reflection/Animal.java b/core-java/src/main/java/com/baeldung/java/reflection/Animal.java
new file mode 100644
index 0000000000..2107c7522d
--- /dev/null
+++ b/core-java/src/main/java/com/baeldung/java/reflection/Animal.java
@@ -0,0 +1,27 @@
+package com.baeldung.java.reflection;
+
+public abstract class Animal implements Eating {
+
+    public static final String CATEGORY = "domestic";
+
+    private String name;
+
+    public Animal(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String makeSound() {
+        return getSound();
+    }
+
+    protected abstract String getSound();
+
+}
diff --git a/core-java/src/main/java/com/baeldung/java/reflection/Bird.java b/core-java/src/main/java/com/baeldung/java/reflection/Bird.java
new file mode 100644
index 0000000000..bd6f13094c
--- /dev/null
+++ b/core-java/src/main/java/com/baeldung/java/reflection/Bird.java
@@ -0,0 +1,36 @@
+package com.baeldung.java.reflection;
+
+public class Bird extends Animal {
+    private boolean walks;
+
+    public Bird() {
+        super("bird");
+    }
+
+    public Bird(String name, boolean walks) {
+        super(name);
+        setWalks(walks);
+    }
+
+    public Bird(String name) {
+        super(name);
+    }
+
+    @Override
+    public String eats() {
+        return "grains";
+    }
+
+    @Override
+    protected String getSound() {
+        return "chaps";
+    }
+
+    public boolean walks() {
+        return walks;
+    }
+
+    public void setWalks(boolean walks) {
+        this.walks = walks;
+    }
+}
diff --git a/core-java/src/main/java/com/baeldung/java/reflection/Eating.java b/core-java/src/main/java/com/baeldung/java/reflection/Eating.java
new file mode 100644
index 0000000000..479425cad4
--- /dev/null
+++ b/core-java/src/main/java/com/baeldung/java/reflection/Eating.java
@@ -0,0 +1,5 @@
+package com.baeldung.java.reflection;
+
+public interface Eating {
+    String eats();
+}
diff --git a/core-java/src/main/java/com/baeldung/java/reflection/Goat.java b/core-java/src/main/java/com/baeldung/java/reflection/Goat.java
new file mode 100644
index 0000000000..503717ae5e
--- /dev/null
+++ b/core-java/src/main/java/com/baeldung/java/reflection/Goat.java
@@ -0,0 +1,24 @@
+package com.baeldung.java.reflection;
+
+public class Goat extends Animal implements Locomotion {
+
+    public Goat(String name) {
+        super(name);
+    }
+
+    @Override
+    protected String getSound() {
+        return "bleat";
+    }
+
+    @Override
+    public String getLocomotion() {
+        return "walks";
+    }
+
+    @Override
+    public String eats() {
+        return "grass";
+    }
+
+}
diff --git a/core-java/src/main/java/com/baeldung/java/reflection/Locomotion.java b/core-java/src/main/java/com/baeldung/java/reflection/Locomotion.java
new file mode 100644
index 0000000000..047c00cb13
--- /dev/null
+++ b/core-java/src/main/java/com/baeldung/java/reflection/Locomotion.java
@@ -0,0 +1,5 @@
+package com.baeldung.java.reflection;
+
+public interface Locomotion {
+    String getLocomotion();
+}
diff --git a/core-java/src/main/java/com/baeldung/java/reflection/Person.java b/core-java/src/main/java/com/baeldung/java/reflection/Person.java
new file mode 100644
index 0000000000..f3d7f9f001
--- /dev/null
+++ b/core-java/src/main/java/com/baeldung/java/reflection/Person.java
@@ -0,0 +1,6 @@
+package com.baeldung.java.reflection;
+
+public class Person {
+    private String name;
+    private int age;
+}
diff --git a/core-java/src/test/java/com/baeldung/java/reflection/ReflectionTest.java b/core-java/src/test/java/com/baeldung/java/reflection/ReflectionTest.java
new file mode 100644
index 0000000000..6a0ad7d34f
--- /dev/null
+++ b/core-java/src/test/java/com/baeldung/java/reflection/ReflectionTest.java
@@ -0,0 +1,326 @@
+package com.baeldung.java.reflection;
+
+import org.junit.Test;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Stream;
+
+import static java.util.stream.Collectors.toList;
+import static org.junit.Assert.*;
+
+public class ReflectionTest {
+
+    @Test
+    public void givenObject_whenGetsFieldNamesAtRuntime_thenCorrect() {
+        Object person = new Person();
+        Field[] fields = person.getClass().getDeclaredFields();
+
+        List<String> actualFieldNames = getFieldNames(fields);
+
+        assertTrue(Arrays.asList("name", "age")
+          .containsAll(actualFieldNames));
+
+    }
+
+    @Test
+    public void givenObject_whenGetsClassName_thenCorrect() {
+        Object goat = new Goat("goat");
+        Class<?> clazz = goat.getClass();
+
+        assertEquals("Goat", clazz.getSimpleName());
+        assertEquals("com.baeldung.java.reflection.Goat", clazz.getName());
+        assertEquals("com.baeldung.java.reflection.Goat", clazz.getCanonicalName());
+    }
+
+    @Test
+    public void givenClassName_whenCreatesObject_thenCorrect()
+      throws ClassNotFoundException {
+        Class<?> clazz = Class.forName("com.baeldung.java.reflection.Goat");
+
+        assertEquals("Goat", clazz.getSimpleName());
+        assertEquals("com.baeldung.java.reflection.Goat", clazz.getName());
+        assertEquals("com.baeldung.java.reflection.Goat", clazz.getCanonicalName());
+    }
+
+    @Test
+    public void givenClass_whenRecognisesModifiers_thenCorrect()
+      throws ClassNotFoundException {
+        Class<?> goatClass = Class.forName("com.baeldung.java.reflection.Goat");
+        Class<?> animalClass = Class.forName("com.baeldung.java.reflection.Animal");
+        int goatMods = goatClass.getModifiers();
+        int animalMods = animalClass.getModifiers();
+
+        assertTrue(Modifier.isPublic(goatMods));
+        assertTrue(Modifier.isAbstract(animalMods));
+        assertTrue(Modifier.isPublic(animalMods));
+    }
+
+    @Test
+    public void givenClass_whenGetsPackageInfo_thenCorrect() {
+        Goat goat = new Goat("goat");
+        Class<?> goatClass = goat.getClass();
+        Package pkg = goatClass.getPackage();
+
+        assertEquals("com.baeldung.java.reflection", pkg.getName());
+    }
+
+    @Test
+    public void givenClass_whenGetsSuperClass_thenCorrect() {
+        Goat goat = new Goat("goat");
+        String str = "any string";
+
+        Class<?> goatClass = goat.getClass();
+        Class<?> goatSuperClass = goatClass.getSuperclass();
+
+        assertEquals("Animal", goatSuperClass.getSimpleName());
+        assertEquals("Object", str.getClass().getSuperclass().getSimpleName());
+
+    }
+
+    @Test
+    public void givenClass_whenGetsImplementedInterfaces_thenCorrect()
+      throws ClassNotFoundException {
+        Class<?> goatClass = Class.forName("com.baeldung.java.reflection.Goat");
+        Class<?> animalClass = Class.forName("com.baeldung.java.reflection.Animal");
+        Class<?>[] goatInterfaces = goatClass.getInterfaces();
+        Class<?>[] animalInterfaces = animalClass.getInterfaces();
+
+        assertEquals(1, goatInterfaces.length);
+        assertEquals(1, animalInterfaces.length);
+        assertEquals("Locomotion", goatInterfaces[0].getSimpleName());
+        assertEquals("Eating", animalInterfaces[0].getSimpleName());
+    }
+
+    @Test
+    public void givenClass_whenGetsConstructor_thenCorrect()
+      throws ClassNotFoundException {
+        Class<?> goatClass = Class.forName("com.baeldung.java.reflection.Goat");
+        Constructor<?>[] constructors = goatClass.getConstructors();
+
+        assertEquals(1, constructors.length);
+        assertEquals("com.baeldung.java.reflection.Goat", constructors[0].getName());
+    }
+
+    @Test
+    public void givenClass_whenGetsFields_thenCorrect()
+      throws ClassNotFoundException {
+        Class<?> animalClass = Class.forName("com.baeldung.java.reflection.Animal");
+        Field[] fields = animalClass.getDeclaredFields();
+
+        List<String> actualFields = getFieldNames(fields);
+
+        assertEquals(2, actualFields.size());
+        assertTrue(actualFields.containsAll(Arrays.asList("name", "CATEGORY")));
+    }
+
+    @Test
+    public void givenClass_whenGetsMethods_thenCorrect()
+      throws ClassNotFoundException {
+        Class<?> animalClass = Class.forName("com.baeldung.java.reflection.Animal");
+        Method[] methods = animalClass.getDeclaredMethods();
+        List<String> actualMethods = getMethodNames(methods);
+
+        assertEquals(4, actualMethods.size());
+        assertTrue(actualMethods.containsAll(Arrays.asList("getName",
+          "setName", "getSound", "makeSound")));
+    }
+
+    @Test
+    public void givenClass_whenGetsAllConstructors_thenCorrect()
+      throws ClassNotFoundException {
+        Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
+        Constructor<?>[] constructors = birdClass.getConstructors();
+
+        assertEquals(3, constructors.length);
+    }
+
+    @Test
+    public void givenClass_whenGetsEachConstructorByParamTypes_thenCorrect()
+      throws Exception {
+        Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
+        Constructor<?> cons1 = birdClass.getConstructor();
+        Constructor<?> cons2 = birdClass.getConstructor(String.class);
+        Constructor<?> cons3 = birdClass.getConstructor(String.class,
+          boolean.class);
+    }
+
+    @Test
+    public void givenClass_whenInstantiatesObjectsAtRuntime_thenCorrect()
+      throws Exception {
+        Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
+
+        Constructor<?> cons1 = birdClass.getConstructor();
+        Constructor<?> cons2 = birdClass.getConstructor(String.class);
+        Constructor<?> cons3 = birdClass.getConstructor(String.class,
+          boolean.class);
+
+        Bird bird1 = (Bird) cons1.newInstance();
+        Bird bird2 = (Bird) cons2.newInstance("Weaver bird");
+        Bird bird3 = (Bird) cons3.newInstance("dove", true);
+
+        assertEquals("bird", bird1.getName());
+        assertEquals("Weaver bird", bird2.getName());
+        assertEquals("dove", bird3.getName());
+        assertFalse(bird1.walks());
+        assertTrue(bird3.walks());
+    }
+
+    @Test
+    public void givenClass_whenGetsPublicFields_thenCorrect()
+      throws ClassNotFoundException {
+        Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
+        Field[] fields = birdClass.getFields();
+        assertEquals(1, fields.length);
+        assertEquals("CATEGORY", fields[0].getName());
+
+    }
+
+    @Test
+    public void givenClass_whenGetsPublicFieldByName_thenCorrect()
+      throws Exception {
+        Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
+        Field field = birdClass.getField("CATEGORY");
+        assertEquals("CATEGORY", field.getName());
+
+    }
+
+    @Test
+    public void givenClass_whenGetsDeclaredFields_thenCorrect()
+      throws ClassNotFoundException {
+        Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
+        Field[] fields = birdClass.getDeclaredFields();
+        assertEquals(1, fields.length);
+        assertEquals("walks", fields[0].getName());
+    }
+
+    @Test
+    public void givenClass_whenGetsFieldsByName_thenCorrect()
+      throws Exception {
+        Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
+        Field field = birdClass.getDeclaredField("walks");
+        assertEquals("walks", field.getName());
+
+    }
+
+    @Test
+    public void givenClassField_whenGetsType_thenCorrect()
+      throws Exception {
+        Field field = Class.forName("com.baeldung.java.reflection.Bird")
+          .getDeclaredField("walks");
+        Class<?> fieldClass = field.getType();
+        assertEquals("boolean", fieldClass.getSimpleName());
+    }
+
+    @Test
+    public void givenClassField_whenSetsAndGetsValue_thenCorrect()
+      throws Exception {
+        Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
+        Bird bird = (Bird) birdClass.newInstance();
+        Field field = birdClass.getDeclaredField("walks");
+        field.setAccessible(true);
+
+        assertFalse(field.getBoolean(bird));
+        assertFalse(bird.walks());
+
+        field.set(bird, true);
+
+        assertTrue(field.getBoolean(bird));
+        assertTrue(bird.walks());
+
+    }
+
+    @Test
+    public void givenClassField_whenGetsAndSetsWithNull_thenCorrect()
+      throws Exception {
+        Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
+        Field field = birdClass.getField("CATEGORY");
+        field.setAccessible(true);
+
+        assertEquals("domestic", field.get(null));
+    }
+
+    @Test
+    public void givenClass_whenGetsAllPublicMethods_thenCorrect()
+      throws ClassNotFoundException {
+        Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
+        Method[] methods = birdClass.getMethods();
+        List<String> methodNames = getMethodNames(methods);
+
+        assertTrue(methodNames.containsAll(Arrays
+          .asList("equals", "notifyAll", "hashCode",
+            "walks", "eats", "toString")));
+
+    }
+
+    @Test
+    public void givenClass_whenGetsOnlyDeclaredMethods_thenCorrect()
+      throws ClassNotFoundException {
+        Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
+        List<String> actualMethodNames = getMethodNames(birdClass.getDeclaredMethods());
+
+        List<String> expectedMethodNames = Arrays.asList("setWalks", "walks", "getSound", "eats");
+
+        assertEquals(expectedMethodNames.size(), actualMethodNames.size());
+        assertTrue(expectedMethodNames.containsAll(actualMethodNames));
+        assertTrue(actualMethodNames.containsAll(expectedMethodNames));
+
+    }
+
+    @Test
+    public void givenMethodName_whenGetsMethod_thenCorrect()
+      throws Exception {
+        Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
+        Method walksMethod = birdClass.getDeclaredMethod("walks");
+        Method setWalksMethod = birdClass.getDeclaredMethod("setWalks",
+          boolean.class);
+
+        assertFalse(walksMethod.isAccessible());
+        assertFalse(setWalksMethod.isAccessible());
+
+        walksMethod.setAccessible(true);
+        setWalksMethod.setAccessible(true);
+
+        assertTrue(walksMethod.isAccessible());
+        assertTrue(setWalksMethod.isAccessible());
+
+    }
+
+    @Test
+    public void givenMethod_whenInvokes_thenCorrect()
+      throws Exception {
+        Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
+        Bird bird = (Bird) birdClass.newInstance();
+        Method setWalksMethod = birdClass.getDeclaredMethod("setWalks",
+          boolean.class);
+        Method walksMethod = birdClass.getDeclaredMethod("walks");
+        boolean walks = (boolean) walksMethod.invoke(bird);
+
+        assertFalse(walks);
+        assertFalse(bird.walks());
+
+        setWalksMethod.invoke(bird, true);
+        boolean walks2 = (boolean) walksMethod.invoke(bird);
+
+        assertTrue(walks2);
+        assertTrue(bird.walks());
+
+    }
+
+    private static List<String> getMethodNames(Method[] methods) {
+        return Stream.of(methods)
+          .map((Method::getName))
+          .collect(toList());
+    }
+
+    private static List<String> getFieldNames(Field[] fields) {
+        return Stream.of(fields)
+          .map(Field::getName)
+          .collect(toList());
+    }
+
+}