java 递归组织部门

下面是一个简单的 Java 递归组织部门的示例代码：

public class Department {
    private String name;
    private List<Department> subDepartments;

    public Department(String name) {
        this.name = name;
        this.subDepartments = new ArrayList<>();
    }

    public void addSubDepartment(Department department) {
        subDepartments.add(department);
    }

    public String getName() {
        return name;
    }

    public List<Department> getSubDepartments() {
        return subDepartments;
    }

    public void printDepartments(int level) {
        for (int i = 0; i < level; i++) {
            System.out.print("-");
        }
        System.out.println(name);

        for (Department subDepartment : subDepartments) {
            subDepartment.printDepartments(level + 1);
        }
    }
}

在这个示例中，`Department` 类表示一个部门，它包含一个名称和一个子部门列表。`addSubDepartment` 方法用于向子部门列表中添加新的子部门。`printDepartments` 方法使用递归方式打印出整个部门组织结构，它接受一个参数 `level`，表示当前部门在组织结构中所处的层级，根部门的 `level` 值为 0。

使用示例：

public static void main(String[] args) {
    Department root = new Department("公司总部");

    Department department1 = new Department("部门1");
    Department department11 = new Department("部门1-1");
    Department department111 = new Department("部门1-1-1");
    department11.addSubDepartment(department111);
    department1.addSubDepartment(department11);

    Department department2 = new Department("部门2");
    Department department21 = new Department("部门2-1");
    department2.addSubDepartment(department21);

    root.addSubDepartment(department1);
    root.addSubDepartment(department2);

    root.printDepartments(0);
}

输出结果：

公司总部
-部门1
--部门1-1
---部门1-1-1
-部门2
--部门2-1