public interface ICommand {
void execute();
}
public class ConcreteCommand implements ICommand {
private Receiver receiver;
public ConcreteCommand(Receiver receiver) {
this.receiver = receiver;
}
@Override
public void execute() {
this.receiver.action();
}
}
public class Receiver {
public void action() {
System.out.println("receiver do something");
}
}
public class Invoker {
private ICommand command;
public Invoker(ICommand command) {
this.command = command;
}
public void invoke() {
this.command.execute();
}
}
public class Test {
public static void main(String[] args) {
Receiver receiver = new Receiver();//真正的执行者
ICommand command = new ConcreteCommand(receiver);//用于的隔离的命令
Invoker invoker = new Invoker(command );//调用者
invoker.invoke();
}
}
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