packaging all my classes into a nice package so I can send it to you

.idea/libraries/Maven__junit_junit_4_13_1.xml

@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: junit:junit:4.13.1">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/junit/junit/4.13.1/junit-4.13.1.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/junit/junit/4.13.1/junit-4.13.1-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/junit/junit/4.13.1/junit-4.13.1-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>

.idea/libraries/Maven__org_apiguardian_apiguardian_api_1_1_0.xml

@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: org.apiguardian:apiguardian-api:1.1.0">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/apiguardian/apiguardian-api/1.1.0/apiguardian-api-1.1.0.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/org/apiguardian/apiguardian-api/1.1.0/apiguardian-api-1.1.0-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/apiguardian/apiguardian-api/1.1.0/apiguardian-api-1.1.0-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>

.idea/libraries/Maven__org_hamcrest_hamcrest_core_1_3.xml

@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: org.hamcrest:hamcrest-core:1.3">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>

.idea/libraries/Maven__org_junit_jupiter_junit_jupiter_api_5_7_0.xml

@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: org.junit.jupiter:junit-jupiter-api:5.7.0">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/junit/jupiter/junit-jupiter-api/5.7.0/junit-jupiter-api-5.7.0.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/org/junit/jupiter/junit-jupiter-api/5.7.0/junit-jupiter-api-5.7.0-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/junit/jupiter/junit-jupiter-api/5.7.0/junit-jupiter-api-5.7.0-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>

.idea/libraries/Maven__org_junit_platform_junit_platform_commons_1_7_0.xml

@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: org.junit.platform:junit-platform-commons:1.7.0">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/junit/platform/junit-platform-commons/1.7.0/junit-platform-commons-1.7.0.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/org/junit/platform/junit-platform-commons/1.7.0/junit-platform-commons-1.7.0-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/junit/platform/junit-platform-commons/1.7.0/junit-platform-commons-1.7.0-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>

.idea/libraries/Maven__org_opentest4j_opentest4j_1_2_0.xml

@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: org.opentest4j:opentest4j:1.2.0">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/opentest4j/opentest4j/1.2.0/opentest4j-1.2.0.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/org/opentest4j/opentest4j/1.2.0/opentest4j-1.2.0-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/opentest4j/opentest4j/1.2.0/opentest4j-1.2.0-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>

RetardedClasses.iml

@@ -5,11 +5,18 @@
     <output-test url="file://$MODULE_DIR$/target/test-classes" />
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/test" isTestSource="true" />
       <excludeFolder url="file://$MODULE_DIR$/target" />
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
     <orderEntry type="library" name="Maven: com.github.shinixsensei-dev:OpenTDB4j:1.1.0" level="project" />
     <orderEntry type="library" name="Maven: org.json:json:20200518" level="project" />
+    <orderEntry type="library" name="Maven: junit:junit:4.13.1" level="project" />
+    <orderEntry type="library" name="Maven: org.hamcrest:hamcrest-core:1.3" level="project" />
+    <orderEntry type="library" name="Maven: org.junit.jupiter:junit-jupiter-api:5.7.0" level="project" />
+    <orderEntry type="library" name="Maven: org.apiguardian:apiguardian-api:1.1.0" level="project" />
+    <orderEntry type="library" name="Maven: org.opentest4j:opentest4j:1.2.0" level="project" />
+    <orderEntry type="library" name="Maven: org.junit.platform:junit-platform-commons:1.7.0" level="project" />
   </component>
 </module>

pom.xml

@@ -20,6 +20,17 @@
             <artifactId>OpenTDB4j</artifactId>
             <version>1.1.0</version>
         </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>RELEASE</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <version>5.7.0</version>
+        </dependency>
     </dependencies>
 
 </project>

src/main/java/com/github/nilstrieb/uselessclasses/Buddy.java

@@ -1,3 +1,5 @@
+package com.github.nilstrieb.uselessclasses;
+
 import java.util.Scanner;
 
 /**

src/main/java/com/github/nilstrieb/uselessclasses/DecimalNumber.java

@@ -1,3 +1,5 @@
+package com.github.nilstrieb.uselessclasses;
+
 /**
  * While being a very useful class, SingedInteger has a very big problem. It can't store decimal numbers.
  * That's why this class exists.

src/main/java/com/github/nilstrieb/uselessclasses/GoodRandom.java

@@ -1,4 +1,4 @@
-//codereview comment: "nice imports"
+package com.github.nilstrieb.uselessclasses; //codereview comment: "nice imports"
 import Requests.OpenTDB;
 
 import java.util.ArrayList;

src/main/java/com/github/nilstrieb/uselessclasses/SignedInteger.java

@@ -1,3 +1,5 @@
+package com.github.nilstrieb.uselessclasses;
+
 /**
  * When you need a way to store negative numbers
  */

src/main/java/com/github/nilstrieb/uselessclasses/StringOfChars.java

@@ -1,3 +1,5 @@
+package com.github.nilstrieb.uselessclasses;
+
 /**
  * Chars are quite useful for most applications, but sometimes, you need a lot of them
  * Then variable naming can get confusing and char arrays are a bit too complicated to effectively work with

src/main/java/com/github/nilstrieb/uselessclasses/TestClass.java

@@ -1,3 +1,5 @@
+package com.github.nilstrieb.uselessclasses;
+
 public class TestClass {
 
     public static void main(String[] args) {

src/main/java/com/github/nilstrieb/uselessclasses/ValueShouldProbablyActuallyBeANumberAndNotSomeWeirdGibberishDumbProgrammerException.java

@@ -1,3 +1,5 @@
+package com.github.nilstrieb.uselessclasses;
+
 /**
  * Sometimes I ask myself what is wrong with me but I always get a {@code ValueShouldProbablyActuallyBeANumberAndNotSomeWeirdGibberishDumbProgrammerException} instead of an answer
  */

src/main/java/com/github/nilstrieb/uselessclasses/u8.java

@@ -1,3 +1,5 @@
+package com.github.nilstrieb.uselessclasses;
+
 /**
  * An unsigned byte.
  * Unlike other programming languages like C, C++ and many others, Java is too high-level to