Java 設計模式之 命令模式（Command Pattern） 代碼實現

public interface Command {
    public void execute();
}

public class Student implements Command {


@Override
public void execute() {
    System.out.println("學生執行。。。。");
}


}</pre> 
  
public class Teacher implements Command{


@Override
public void execute() {
    System.out.println("老師執行");
}


}</pre> 
  
public class Test {
    public static void main(String[] args) {
        List<Command> list=new ArrayList<Command>();
        list.add(new Student());
        list.add(new Teacher());
        for (Command commond : list) {
            commond.execute();
        }
    }
}