BAEL-453 some improvments, formatting etc.

spring-core/src/main/java/com/baeldung/factorybean/FactoryBeanAppConfig.java

@@ -5,6 +5,7 @@ import org.springframework.context.annotation.Configuration;
 
 @Configuration
 public class FactoryBeanAppConfig {
+    
     @Bean
     public ToolFactory tool() {
         ToolFactory factory = new ToolFactory();

spring-core/src/main/java/com/baeldung/factorybean/InitializationToolFactory.java

@@ -7,6 +7,7 @@ import org.springframework.beans.factory.InitializingBean;
 import org.springframework.util.StringUtils;
 
 public class InitializationToolFactory implements FactoryBean<Tool>, InitializingBean {
+    
     private int factoryId;
     private int toolId;
     private String toolName;

spring-core/src/main/java/com/baeldung/factorybean/NonSingleToolFactory.java

@@ -3,6 +3,7 @@ package com.baeldung.factorybean;
 import org.springframework.beans.factory.config.AbstractFactoryBean;
 
 public class NonSingleToolFactory extends AbstractFactoryBean<Tool> {
+    
     private int factoryId;
     private int toolId;
     private String toolName;

spring-core/src/main/java/com/baeldung/factorybean/PostConstructToolFactory.java

@@ -8,6 +8,7 @@ import org.springframework.beans.factory.FactoryBean;
 import org.springframework.util.StringUtils;
 
 public class PostConstructToolFactory implements FactoryBean<Tool> {
+    
     private int factoryId;
     private int toolId;
     private String toolName;

spring-core/src/main/java/com/baeldung/factorybean/SingleToolFactory.java

@@ -4,6 +4,7 @@ import org.springframework.beans.factory.config.AbstractFactoryBean;
 
 //no need to set singleton property because default value is true
 public class SingleToolFactory extends AbstractFactoryBean<Tool> {
+    
     private int factoryId;
     private int toolId;
     private String toolName;

spring-core/src/main/java/com/baeldung/factorybean/Tool.java

@@ -1,13 +1,11 @@
 package com.baeldung.factorybean;
 
 public class Tool {
+    
     private int id;
     private String name;
     private double price;
 
-    public Tool() {
-    }
-
     public Tool(int id, String name, double price) {
         this.id = id;
         this.name = name;

spring-core/src/main/java/com/baeldung/factorybean/ToolFactory.java

@@ -3,6 +3,7 @@ package com.baeldung.factorybean;
 import org.springframework.beans.factory.FactoryBean;
 
 public class ToolFactory implements FactoryBean<Tool> {
+   
     private int factoryId;
     private int toolId;
     private String toolName;

spring-core/src/main/java/com/baeldung/factorybean/Worker.java

@@ -1,11 +1,11 @@
 package com.baeldung.factorybean;
 
 public class Worker {
+
     private String number;
     private Tool tool;
 
-    public Worker() {
-    }
+    public Worker() {}
 
     public Worker(String number, Tool tool) {
         this.number = number;

spring-core/src/test/java/com/baeldung/factorybean/AbstractFactoryBeanTest.java

@@ -9,6 +9,7 @@ import org.springframework.context.ApplicationContext;
 import org.springframework.context.support.ClassPathXmlApplicationContext;
 
 public class AbstractFactoryBeanTest {
+    
     @Test
     public void testSingleToolFactory() {
         ApplicationContext context = new ClassPathXmlApplicationContext("classpath:factorybean-abstract-spring-ctx.xml");

spring-core/src/test/java/com/baeldung/factorybean/FactoryBeanInitializeTest.java

@@ -5,6 +5,7 @@ import org.springframework.beans.factory.BeanCreationException;
 import org.springframework.context.support.ClassPathXmlApplicationContext;
 
 public class FactoryBeanInitializeTest {
+	
     @Test(expected = BeanCreationException.class)
     public void testInitializationToolFactory() {
         new ClassPathXmlApplicationContext("classpath:factorybean-init-spring-ctx.xml");

spring-core/src/test/java/com/baeldung/factorybean/FactoryBeanTest.java

@@ -9,6 +9,7 @@ import org.springframework.context.annotation.AnnotationConfigApplicationContext
 import org.springframework.context.support.ClassPathXmlApplicationContext;
 
 public class FactoryBeanTest {
+    
     @Test
     public void testConstructWorkerByXml() {
         ApplicationContext context = new ClassPathXmlApplicationContext("classpath:factorybean-spring-ctx.xml");