Java开发人员必备的10个工具和技巧

public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello, World!");
    }
}

git init
git add .
git commit -m "Initial commit"
git branch feature-branch

mvn clean install

import org.apache.log4j.Logger;

public class HelloWorld {
    private static final Logger logger = Logger.getLogger(HelloWorld.class);

    public static void main(String[] args) {
        logger.info("Hello, World!");
    }
}

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

public class CalculatorTest {
    @Test
    public void testAdd() {
        Calculator calculator = new Calculator();
        int result = calculator.add(2, 3);
        assertEquals(5, result);
    }
}

sonar-scanner

jvisualvm

findbugs .

/**
 * This class represents a rectangle.
 */
public class Rectangle {
    private int width;
    private int height;

    /**
     * Constructs a new Rectangle with the specified
     * width and height.
     *
     * @param width The width of the rectangle.
     * @param height The height of the rectangle.
     */
    public Rectangle(int width, int height) {
        this.width = width;
        this.height = height;
    }

    /**
     * Calculates the area of the rectangle.
     *
     * @return The area of the rectangle.
     */
    public int area() {
        return width * height;
    }
}

java -Xmx2g -jar mat.jar