## **pom.xml**

```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>com.example</groupId>
    <artifactId>solution</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.13.2</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
</project>

```



## **src/main/java/com/example/solution/Solution.java**

```java
package com.example.solution;

public class Solution {

    public int solution(int a, int b) {
        return a * b;
    }
}

```


## **src/test/java/com/example/solution/SolutionTest.java**

```java
package com.example.solution;

import org.junit.Test;
import static org.junit.Assert.*;

public class SolutionTest {

    @Test
    public void testPositiveNumbers() {
        Solution solution = new Solution();
        int result = solution.solution(5, 3);
        assertEquals(15, result);
    }

    @Test
    public void testNegativeNumbers() {
        Solution solution = new Solution();
        int result = solution.solution(-2, -4);
        assertEquals(8, result);
    }

    @Test
    public void testZeroMultiplication() {
        Solution solution = new Solution();
        int result = solution.solution(7, 0);
        assertEquals(0, result);
    }
}
```



## **Compile**

```bash
mvn compile
```

## **Test**

```bash
mvn test
```