class MemoryExample {
    void modifyObject(StringBuilder sb, int value) {
        sb.append("Изменено"); // Изменяет объект в куче
        value = 100; // Изменяет локальную копию, не влияет на исходное значение
    }
}

StringBuilder sb = new StringBuilder("Привет");
int value = 42;
MemoryExample example = new MemoryExample();
example.modifyObject(sb, value);
System.out.println(sb); // Вывод: ПриветИзменено
System.out.println(value); // Вывод: 42

/**
 * Вычисляет сумму двух чисел.
 * @param firstNumber Первое число
 * @param secondNumber Второе число
 * @return Сумма чисел
 */
int calculateSum(int firstNumber, int secondNumber) {
    return firstNumber + secondNumber;
}

public class Task020725 {
    
    static void modify(int x) {
        x = x + 10;
    }
    
    public static void main(String[] args) {
        int num = 5;
        modify(num);
        System.out.println(num);
    }
}

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-core</artifactId>
    <version>5.3.20</version>
</dependency>

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>1.2</version>
        </dependency>
    </dependencies>
</dependencyManagement>

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-enforcer-plugin</artifactId>
    <version>3.4.1</version>
    <executions>
        <execution>
            <id>enforce</id>
            <goals>
                <goal>enforce</goal>
            </goals>
            <configuration>
                <rules>
                    <dependencyConvergence/>
                </rules>
            </configuration>
        </execution>
    </executions>
</plugin>

<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>1.7.36</version>
    <optional>true</optional>
</dependency>

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-dependencies</artifactId>
            <version>2.7.18</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.example</groupId>
            <artifactId>custom-bom</artifactId>
            <version>1.0.0</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

mvn dependency:tree

[INFO] com.example:my-project:jar:1.0-SNAPSHOT
[INFO] +- org.springframework:spring-core:jar:5.3.20:compile
[INFO] |  \- commons-logging:commons-logging:jar:1.2:compile
[INFO] \- org.junit.jupiter:junit-jupiter:jar:5.9.2:test

mvn dependency:analyze

public class Task030725 {
    private static int counter = 0;

    public static void main(String[] args) throws InterruptedException {
        Runnable task = () -> {
            for (int i = 0; i < 1_000_000; i++) {
                counter++;
            }
        };

        Thread t1 = new Thread(task);
        Thread t2 = new Thread(task);

        t1.start();
        t2.start();

        t1.join();
        t2.join();

        System.out.println(counter);
    }
}