public interface IGamePlayer {
    public void killBoss();
    public void upGrade();
}


public class GamePlayer implements IGamePlayer{

    private String name;

    public GamePlayer() {
    }

    public GamePlayer(String name) {
        this.name = name;
    }

    @Override
    public void killBoss() {
        System.out.println("打怪");
    }

    @Override
    public void upGrade() {
        System.out.println("升级");
    }


}



public class GamePlayerProxy implements IGamePlayer{
    private IGamePlayer player = null;
    public GamePlayerProxy(IGamePlayer player){
        this.player= player;
    }

    private void log(){
        System.out.println("打怪 时间  " + new Date().toString());
    }

    @Override
    public void killBoss() {
        System.out.println("打怪前");
        player.killBoss();
        System.out.println("打怪后");
    }

    @Override
    public void upGrade() {

    }
}


public class Client {

    public static void main(String[] args) {
        GamePlayer gamePlayer = new GamePlayer("李逍遥");
        GamePlayerProxy gamePlayerProxy = new GamePlayerProxy(gamePlayer);
        gamePlayerProxy.killBoss();
    }
}

public abstract class Article {
    public abstract void produce();
}
public abstract class Video {
    public abstract void produce();
}

//实现类
public class JavaArticle extends Article{

    @Override
    public void produce() {
        System.out.println("生产文章");
    }
}
public class JavaVideo extends Video{

    @Override
    public void produce() {
        System.out.println("生成video");
    }
}

课程
public interface CourseFactory {
    Video getVideo();
    Article getArtcle();
}

public class MyFactory implements CourseFactory{

    @Override
    public Video getVideo() {
        return new JavaVideo();
    }

    @Override
    public Article getArtcle() {
        return new JavaArticle();
    }
}


//主类
public class Client {
    public static void main(String[] args) {
        MyFactory myFactory = new MyFactory();
        Article artcle = myFactory.getArtcle();
        Video video = myFactory.getVideo();
        artcle.produce();
        video.produce();
    }
}

public class AbstractLeaveHandler {
    /**直接主管审批处理的请假天数*/
    protected int MIN = 1;
    /**部门经理处理的请假天数*/
    protected int MIDDLE = 3;
    /**总经理处理的请假天数*/
    protected int MAX = 30;

    /**领导名称*/
    protected String handlerName;

    /**下一个处理节点（即更高级别的领导）*/
    protected AbstractLeaveHandler nextHandler;

    /**设置下一节点*/
    protected void setNextHandler(AbstractLeaveHandler handler){
        this.nextHandler = handler;
    }

    /**处理请假的请求，子类实现*/
    protected void handlerRequest(LeaveRequest request){

    }
}



//直接主管
public class DirectLeaderLeaveHandler extends AbstractLeaveHandler{
    public DirectLeaderLeaveHandler(String name) {
        this.handlerName = name;
    }

    @Override
    protected void handlerRequest(LeaveRequest request) {
        if(request.getLeaveDays() <= this.MIN){
            System.out.println("直接主管:" + handlerName + ",已经处理;流程结束。");
            return;
        }

        if(null != this.nextHandler){
            this.nextHandler.handlerRequest(request);
        }else{
            System.out.println("审批拒绝！");
        }

    }
}

//部门经理
public class DeptManagerLeaveHandler extends AbstractLeaveHandler{
    public DeptManagerLeaveHandler(String name) {
        this.handlerName = name;
    }

    @Override
    protected void handlerRequest(LeaveRequest request) {
        if(request.getLeaveDays() >this.MIN && request.getLeaveDays() <= this.MIDDLE){
            System.out.println("部门经理:" + handlerName + ",已经处理;流程结束。");
            return;
        }

        if(null != this.nextHandler){
            this.nextHandler.handlerRequest(request);
        }else{
            System.out.println("审批拒绝！");
        }
    }
}

//总经理
public class GManagerLeaveHandler extends AbstractLeaveHandler{
    public GManagerLeaveHandler(String name) {
        this.handlerName = name;
    }

    @Override
    protected void handlerRequest(LeaveRequest request) {
        if(request.getLeaveDays() > this.MIDDLE && request.getLeaveDays() <= this.MAX){
            System.out.println("总经理:" + handlerName + ",已经处理;流程结束。");
            return;
        }

        if(null != this.nextHandler){
            this.nextHandler.handlerRequest(request);
        }else{
            System.out.println("审批拒绝！");
        }
    }

}

//请求
public class LeaveRequest {
	
    //请求天数和名字
    private int leaveDays;
    private String name;
}

//客户端
public class ResponsibilityTest {
    public static void main(String[] args) {
        LeaveRequest request = LeaveRequest.builder().leaveDays(5).name("小明").build();


        AbstractLeaveHandler directLeaderLeaveHandler = new DirectLeaderLeaveHandler("县令");
        DeptManagerLeaveHandler deptManagerLeaveHandler = new DeptManagerLeaveHandler("知府");
        GManagerLeaveHandler gManagerLeaveHandler = new GManagerLeaveHandler("京兆尹");

        directLeaderLeaveHandler.setNextHandler(deptManagerLeaveHandler);
        deptManagerLeaveHandler.setNextHandler(gManagerLeaveHandler);

        directLeaderLeaveHandler.handlerRequest(request);


    }
}

//策略类
public abstract class Strategy {
    public abstract void algorithmInterface();
}


//策略A 和 策略B
public class StrategyA extends Strategy{

    @Override
    public void algorithmInterface() {
        System.out.println("算法A 的思想");
    }
}


// 策略B
public class StrategyB extends Strategy{

    @Override
    public void algorithmInterface() {
        System.out.println("算法B 的思想");
    }
}


// 策略的执行对象
public class Context {

    Strategy strategy;

    public Context(Strategy strategy){
        this.strategy = strategy;
    }

    public void contextInterFace(){
        strategy.algorithmInterface();
    }
}

//客户端
public class Client {


    public static void main(String[] args) {
        Context context;
        context = new Context(new StrategyA());
        context.contextInterFace();
        context = new Context(new StrategyB());
        context.contextInterFace();
    }

}