docs: update dependency injection

dependency-injection/src/main/java/com/iluwatar/dependency/injection/App.java

@@ -28,7 +28,7 @@ import com.google.inject.Guice;
 
 /**
  * Dependency Injection pattern deals with how objects handle their dependencies. The pattern
- * implements so called inversion of control principle. Inversion of control has two specific rules:
+ * implements so-called inversion of control principle. Inversion of control has two specific rules:
  * - High-level modules should not depend on low-level modules. Both should depend on abstractions.
  * - Abstractions should not depend on details. Details should depend on abstractions.
  *
@@ -37,7 +37,7 @@ import com.google.inject.Guice;
  * concrete implementation which cannot be changed.
  *
  * <p>The second and third wizards({@link AdvancedWizard} and {@link AdvancedSorceress}) are more
- * flexible. They do not depend on any concrete implementation but abstraction. They utilizes
+ * flexible. They do not depend on any concrete implementation but abstraction. They utilize
  * Dependency Injection pattern allowing their {@link Tobacco} dependency to be injected through
  * constructor ({@link AdvancedWizard}) or setter ({@link AdvancedSorceress}). This way, handling
  * the dependency is no longer the wizard's responsibility. It is resolved outside the wizard

dependency-injection/src/test/java/com/iluwatar/dependency/injection/AdvancedSorceressTest.java

@@ -58,7 +58,7 @@ class AdvancedSorceressTest {
    * her through the setter's parameter
    */
   @Test
-  void testSmokeEveryThing() throws Exception {
+  void testSmokeEveryThing() {
 
     List<Tobacco> tobaccos = List.of(
         new OldTobyTobacco(),

dependency-injection/src/test/java/com/iluwatar/dependency/injection/AdvancedWizardTest.java

@@ -57,7 +57,7 @@ class AdvancedWizardTest {
    * through the constructor parameter
    */
   @Test
-  void testSmokeEveryThing() throws Exception {
+  void testSmokeEveryThing() {
 
     List<Tobacco> tobaccos = List.of(
         new OldTobyTobacco(),

dependency-injection/src/test/java/com/iluwatar/dependency/injection/AppTest.java

@@ -35,7 +35,6 @@ class AppTest {
 
   /**
    * Issue: Add at least one assertion to this test case.
-   *
    * Solution: Inserted assertion to check whether the execution of the main method in {@link App#main(String[])}
    * throws an exception.
    */

dependency-injection/src/test/java/com/iluwatar/dependency/injection/GuiceWizardTest.java

@@ -58,7 +58,7 @@ class GuiceWizardTest {
    * through the constructor parameter
    */
   @Test
-  void testSmokeEveryThingThroughConstructor() throws Exception {
+  void testSmokeEveryThingThroughConstructor() {
 
     List<Tobacco> tobaccos = List.of(
         new OldTobyTobacco(),
@@ -83,7 +83,7 @@ class GuiceWizardTest {
    * through the Guice google inject framework
    */
   @Test
-  void testSmokeEveryThingThroughInjectionFramework() throws Exception {
+  void testSmokeEveryThingThroughInjectionFramework() {
 
     List<Class<? extends Tobacco>> tobaccos = List.of(
         OldTobyTobacco.class,