组合模式

组合模式

参考博客：https://baijiahao.baidu.com/s?id=1639579541093787227&wfr=spider&for=pc

https://www.cnblogs.com/WindSun/p/10263376.html

Component: 抽象构件

public abstract class Component {

    public abstract void add(Component c);
    public abstract void remove(Component c);
    public abstract Component getChild(int i);
    public abstract void operation();

}

Leaf: 叶子构件

public class Leaf extends Component {
    @Override
    public void add(Component c) {
        //异常处理或错误提示
    }

    @Override
    public void remove(Component c) {
        //异常处理或错误提示
    }

    @Override
    public Component getChild(int i) {
        //异常处理或错误提示
        return null;
    }

    @Override
    public void operation() {
        //实现代码
    }
}

Composite: 容器构件