Institute of Information Science - University of Miskolc

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Java példa Előfeltételek

• Visual Studio Code
• JDK

  java -version

• Extension pack for Java
• Maven

Lépések

• View → Command Palette: Create Java Project / Maven / maven-archetype-quickstart / version: 1.4 (legújabb), groupId: hu.example

artifactId: junit-demo

• pom.xml

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>21</maven.compiler.source>
    <maven.compiler.target>21</maven.compiler.target>
  </properties>
 
  <dependencies>
<dependency>
    <groupId>org.junit.jupiter</groupId>
    <artifactId>junit-jupiter</artifactId>
    <version>5.11.1</version>
    <scope>test</scope>
</dependency>
  </dependencies>

• futtasd a maven tesztet

mvn clean test

• bal oldalt az Explorerben jobb klikk a src/main/java mappán / New File / név: Calculator.java

public class Calculator {
 
    public int add(int a, int b) {
        return a + b;
    }
}

• src/test/java mappában létrehozunk hozzá egy:CalculatorTest.java

package hu.example;
import org.junit.jupiter.api.Test;
 
import static org.junit.jupiter.api.Assertions.assertEquals;
 
class CalculatorTest {
 
    @Test
    void addTwoNumbers() {
        Calculator calculator = new Calculator();
 
        int result = calculator.add(2, 3);
 
        assertEquals(5, result);
    }
}

A teljes project: teljes project