BAEL-833: How to get last element of a Stream in Java? (#1930)

* Different Types of Bean Injection in Spring

* Fixed code formatting and test names for "Different Types of Bean Injection in Spring"

* BAEL-833: How to get last element of a Stream in Java?

* BAEL-833: Updated based on review from editor

spring-core/src/test/java/com/baeldung/beaninjection/FileReaderTest.java

@@ -0,0 +1,24 @@
+package com.baeldung.beaninjection;
+
+import static org.junit.Assert.assertNotNull;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.ApplicationContext;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(classes = ReaderApplicationConfig.class)
+public class FileReaderTest {
+
+    @Autowired
+    private ApplicationContext context;
+
+    @Test
+    public void testAutowiredAnnotation_WhenField_ThenInjected() {
+        FileReader service = context.getBean(FileReader.class);
+        assertNotNull(service.getLocation());
+    }
+}

spring-core/src/test/java/com/baeldung/beaninjection/FtpReaderTest.java

@@ -0,0 +1,25 @@
+package com.baeldung.beaninjection;
+
+import static org.junit.Assert.assertNotNull;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.ApplicationContext;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(locations = "classpath:injectiontypes.xml")
+public class FtpReaderTest {
+
+    @Autowired
+    private ApplicationContext context;
+
+    @Test
+    public void testXMLBeanConfig_WhenConstructorArguments_ThenInjected() {
+        FtpReader service = context.getBean(FtpReader.class);
+        assertNotNull(service.getFtpHost());
+        assertNotNull(service.getFtpPort());
+    }
+}

spring-core/src/test/java/com/baeldung/beaninjection/ReaderManagerTest.java

@@ -0,0 +1,25 @@
+package com.baeldung.beaninjection;
+
+import static org.junit.Assert.assertNotNull;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.ApplicationContext;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(classes = ReaderApplicationConfig.class)
+public class ReaderManagerTest {
+
+    @Autowired
+    private ApplicationContext context;
+
+    @Test
+    public void testAutowiredAnnotation_WhenConstructorAndSetter_ThenInjected() {
+        ReaderManager service = context.getBean(ReaderManager.class);
+        assertNotNull(service.getFtpReader());
+        assertNotNull(service.getFileReader());
+    }
+}

spring-core/src/test/java/com/baeldung/beaninjection/ReaderServiceTest.java

@@ -0,0 +1,24 @@
+package com.baeldung.beaninjection;
+
+import static org.junit.Assert.assertNotNull;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.ApplicationContext;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(locations = "classpath:injectiontypes.xml")
+public class ReaderServiceTest {
+
+    @Autowired
+    private ApplicationContext context;
+
+    @Test
+    public void testXMLBeanConfig_WhenSetter_ThenInjected() {
+        ReaderService service = context.getBean(ReaderService.class);
+        assertNotNull(service.getFtpReader());
+    }
+}