New addon

.gitignore

+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store
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.idea/.gitignore

+# Default ignored files
+/shelf/
+/workspace.xml

.idea/encodings.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
+  </component>
+</project>
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.idea/misc.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/pom.xml" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_22" default="true" project-jdk-name="22" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
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.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings" defaultProject="true" />
+</project>
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pom.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>fi.utu.tjmkal</groupId>
+    <artifactId>Week4-E1</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>22</maven.compiler.source>
+        <maven.compiler.target>22</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <version>5.9.2</version>
+        </dependency>
+    </dependencies>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>2.22.2</version>
+            </plugin>
+        </plugins>
+    </build>
+</project>
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src/main/java/fi/utu/tjmkal/Calculator.java

+package fi.utu.tjmkal;
+
+public class Calculator {
+    int result;
+
+    public Calculator() {
+        reset();
+    }
+
+    public void reset() {
+        this.result = 0;
+    }
+
+    public int getResult() {
+        return this.result;
+    }
+
+    public void add(int value) {
+        this.result += value;
+    }
+
+    public void subtract(int value) {
+        this.result -= value;
+    }
+
+    public void multiply(int value) {
+        this.result *= value;
+    }
+
+    public void exponent(int value) {
+        while (value != 1) {
+            result *= result;
+            --value;
+        }
+    }
+}
+

src/main/java/fi/utu/tjmkal/Main.java

+package fi.utu.tjmkal;
+
+public class Main {
+    public static void main(String[] args) {
+        System.out.println("Hello world!");
+    }
+}
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src/test/java/fi/utu/tjmkal/CalculatorTest.java

+package fi.utu.tjmkal;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+class CalculatorTest {
+
+    @Test
+    void reset() {
+    }
+
+    @Test
+    void getResult() {
+        Calculator calculator = new Calculator();
+        assertEquals(0, calculator.getResult());
+    }
+
+    @Test
+    void add() {
+        Calculator calculator = new Calculator();
+        calculator.add(10);
+        calculator.add(-5);
+        assertEquals(5, calculator.getResult());
+    }
+
+    @Test
+    void subtract() {
+        Calculator calculator = new Calculator();
+        calculator.add(10);
+        calculator.subtract(5);
+        assertEquals(5, calculator.getResult());
+    }
+
+    @Test
+    void multiply() {
+        Calculator calculator = new Calculator();
+        calculator.add(5);
+        calculator.multiply(2);
+        calculator.multiply(-3);
+        assertEquals(-30, calculator.getResult());
+    }
+
+    @Test
+    void exponent() {
+        Calculator calculator = new Calculator();
+        calculator.add(10);
+        calculator.exponent(3);
+        assertEquals(10000, calculator.getResult());
+    }
+}
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