已知有如下代码: package a; public abstract class Animal{ public abstract void run(){ System.out.println("running"); } public void walk(){ System.out.println("walking"); } } 请判断代码正确与否?
【简答题】Translate the following phrase into Chinese. If society were a train, the etiquette would be the rails along which only the train could rumble forth; if society were a stagecoach, the etiquette would ...