(完整版)设计模式

设计题get(intindex)方法遍历链表所有的时get(intindex)方法遍历链表所有的时mportjava.util.*;publicclassTestSpeed{publicstaticvoidmain(String[]args)mportjava.util.*;publicclassTestSpeed{publicstaticvoidmain(String[]args){LinkedList<String>list=for(inti=0;i<=60096;i++){list.add("speed"+i);}IteratorvString>iter=list.iterator();longstarttime=System.while(iter.hasNext()){Stringte=iter.next();newLinkedList<String>();currentTimeMillis();}currentTimeMillis();longendTime=System.currentTimeMillis();longresult=endTime-starttime;System.out.println(

starttime=System."使用迭代遍历集合所用时间currentTimeMillis();result+"毫秒“);for(inti=0;i<list.size();i++){Stringte=list.get(i);();}();endTime=System.currentTimeMillisresult=endTime-starttime;System.out.println(”使用get方法历集合所用时间"+result+"毫秒“);}}编写饿汉式和懒汉式单件模式示意代码，并说明这两种方式的适应性。(1)饿汉式：publicclassSingleton{privatestatic SingletonunigueInstanee=newSingleton();privateSingleton(){}publicstaticSingletongetInstance(){publicstaticreturnunigueInstanee;}}(2)懒汉式：publicclassSingleton{privatestatic SingletonunigueInstanee;privateSingleton(){}publicstaticsynchronizedSingletongetInstance(){publicstaticif(unigueInstanee==null){unigueInstaneenewSingleton();}returnunigueInstanee;}}以下你看到的类和接口是取自一个动作冒险游戏，它们代表游戏角色(Character)的类和角色可以使用的武器行为的类。每个角色一次只能使用一种武器，但是可以在游戏的过程中换武器。你的工作是使用策略模式实现该游戏的架构。 CftjfactarTnMIKfiifeBehaviorBiOwAndArrowBehAvicr「实区HITMAxeBehjiviarTnMIKfiifeBehaviorBiOwAndArrowBehAvicr「实区HITMAxeBehjiviar(］广实班用磬npublicabstractclassCharacter{WeaponBehaviorweapon;publicvoidperformWeapon(){weapon.useWeapon();}publicabstractvoidfight();publicvoidsetWeaponBehavior(WeaponBehaviorw){this.weapon=w;}}publicclassQueenextendsCharacter{publicQueen(){weapon=newKnifeBehavior();}publicvoidfight(){System.out.println("皇后在战斗。");}}publicclassKing extendsCharacter{publicKing(){weapon=newSwordBehavior();}publicvoidfight(){System.out.println("国王在战斗。");}publicclassTrollextendsCharacter{publicTroll(){weapon=newBowAndArrowBehavior();publicvoidfight(){System.out.println("妖怪在战斗。");}}publicclassKnightextendsCharacter{publicKnight(){weapon=newAxeBehavior();}publicvoidfight(){System.out.println("骑士在战斗。");}}publicinterfaceWeaponBehavior{publicvoiduseWeapon();publicclassKnifeBehavior implementsWeaponBehavior{publicvoiduseWeapon(){System.out.println("使用匕首战斗！");}}publicclassBowAndArrowBehaviorimplementsWeaponBehavior{publicvoiduseWeapon(){System.out.println("使用弓箭战斗！");}}publicclassAxeBehavior implementsWeaponBehavior{publicvoiduseWeapon(){System.out.println(} 使用斧头战斗！");}publicclassSwordBehaviorimplementsWeaponBehavior{publicvoiduseWeapon(){//TODOAuto-generatedmethodstub}publicclassGame{publicstaticvoidmain(String[]args){//Kingking=newKing();Characterking=newKing();//显示谁在战斗king.fight();//使用武器king.performWeapon();System.out.println( 使用宝剑战斗！");//改变武器(对象)king.setWeaponBehavior(newKnifeBehavior());//再次使用武器king.performWeapon();System.out.println("\n另一个角色");Charactertroll= newTroll();//Trolltroll=newTroll();troll.fight();troll.performWeapon();troll.setWeaponBehavior(newSwordBehavior());troll.performWeapon();}}使用责任链模式计算阶乘，设计要求：设计一个类，该类使用int型数据计算阶乘。设计一个类，该类使用long型数据计算阶乘。设计一个类，该类使用BigInteger型数据计算阶乘。使用责任链模式将上述对象组成一个责任链，要求责任链上对象的顺序是：首先使用int型数据计算阶乘，然后使用long型数据计算阶乘，最后使用BigInteger型数据计算阶乘。用户可以使用责任链计算任意整数的阶乘，类图如下所示。注意：不够写可写到背面并注明voidcompuerMultiply(Stringnumber);voidsetNextHandler(Handlerhandler);publicinterfaceHandler{voidcompuerMultiply(Stringnumber);voidsetNextHandler(Handlerhandler);}publicclassUselnt implementsHandler{private Handlerhandlerprivate intresult=1;publicvoidcompuerMultiply(Stringnumber){try{intn=lnteger.parseInt(number);inti=1;while(i<=n){

result=result*i;);if(result<=0){);System.out.println( "超出我的能力范围，我计算不了puerMultiply(number);return;}i++;}System.out.println(number+ "的阶乘："+result);}catch(NumberFormatExceptionexp){System.out.println(exp.toString());publicvoidsetNextHandler(Handlerhandler){this.handler=handler;}}PublicclassUseLongimplementSdAanprivateHandlerhandler;privatelongresult=1;publicvoidcompuerMultiply(Stringnumber){

try{longn=Long.parseLong(number);longi=1;while(i<=n){result=result*i;if(result<=0){System.out.println( "超出我的能力范围，我计算不了 ");puerMultiply(number);return;}i++;}System.out.println(number+ "的阶乘："+result);}catch(NumberFormatExceptionexp){System.out.println(exp.toString());}}publicvoidsetNextHandler(Handlerhandler){this.handler=handler;}}importjava.math.Biglnteger;publicclassUseBigInteger implementsHandler{privateHandlerhandler;privateBigInteger result=newBigInteger("1");publicvoidcompuerMultiply(Stringnumber){try{BigIntegern=newBigInteger(number);BigIntegerONE=newBigInteger("1");BigIntegeri=ONE;while(pareTo(n)<=0){result=result.multiply(i);i=i.add(ONE);}System.out.println(number+ "的阶乘:"+result);}catch(NumberFormatExceptionexp){System.out.println(exp.toString());}}publicvoidsetNextHandler(Handlerhandler){this.handler=handler;this.handler=handler;}publicclassApplication{privateHandleruseInt,useLong,useBig;publicvoidcreateChain(){useInt=newUseInt();useLong=newUseLong();useBig=newUseBigInt