备忘录模式

package 备忘录模式;

public class 备忘录模式 {
	public static void main(String[] args) {
		//创建游戏
		CallOfDuty game = new CallOfDuty();
		game.play();
		//创建管理员
		Caretaker caretaker = new Caretaker();
		//存档
		caretaker.archive(game.createMemoto());
		//退出游戏
		game.quit();
		CallOfDuty newGame = new CallOfDuty();
		//恢复游戏
		newGame.restore(caretaker.getMemoto());
	}

}

package 备忘录模式;

public class CallOfDuty {
	private int mCheckpoint = 1;
	private int mLifeValue = 10;
	private String mWeapon = "沙漠之鹰";
	
	public void play(){
		System.out.println("玩游戏： "+ String.format("第 %d 关", mCheckpoint)+ "奋战杀敌中");
		mLifeValue -= 10;
		System.out.println("进度升级了");
		mCheckpoint ++;
		System.out.println(" 到达："+String.format("第 %d 关", mCheckpoint));
	}

	public void quit(){
		System.out.println(" ------------------- ");
		System.out.println("退出前的属性"+ toString());
		System.out.println("退出游戏");
		System.out.println(" ------------------- ");
	}

	@Override
	public String toString() {
		return "CallOfDuty [mCheckpoint=" + mCheckpoint + ", mLifeValue=" + mLifeValue + ", mWeapon=" + mWeapon + "]";
	}
	
	public Memoto createMemoto(){
		Memoto memoto = new Memoto();
		memoto.mCheckpoint = mCheckpoint;
		memoto.mLifeValue = mLifeValue;
		memoto.mWeapon = mWeapon;
		return memoto;
	}
	
	public void restore(Memoto memoto){
		mCheckpoint = memoto.mCheckpoint;
		mLifeValue = memoto.mLifeValue;
		mWeapon = memoto.mWeapon;
		System.out.println("恢复游戏后的属性 "+ toString());
	}
			
}

package 备忘录模式;

public class Memoto {
	public int mCheckpoint;
	public  int mLifeValue;
	public  String mWeapon;
	@Override
	public String toString() {
		return "Memoto [mCheckpoint=" + mCheckpoint + ", mLifeValue=" + mLifeValue + ", mWeapon=" + mWeapon + "]";
	}
	

}

package 备忘录模式;

public class Caretaker {
	private Memoto mMemoto;
	public Memoto getMemoto(){
		return mMemoto;
	}
	
	public void archive(Memoto memoto){
		mMemoto = memoto;
	}
	
}