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Question

定义部件（Component）的重量（wight）概念，则其重量为本身重量加各子部件的重量之和，getWeight函数计算Component的重量，完成填空

public class Component {

private List <Component> children;

private  int weight;

private int getWeight(){

    int result = _________;

    if(children != null){

        for (Component child : children){

            if(child != null){

                result += ______________;
            }
        }
    }
    return result;
}

}

Answer 1

(1). 0
(2). weight