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IP屬地：廣西 上傳時(shí)間：2024-01-02 格式：DOC 頁(yè)數(shù)：8 大?。?2KB 積分：12 舉報(bào) 版權(quán)申訴

實(shí)驗(yàn)二面向?qū)ο缶幊?．實(shí)驗(yàn)?zāi)康摹?〕掌握類(lèi)與對(duì)象根本知識(shí)；〔2〕Java中的繼承機(jī)制及包〔package〕、接口〔interface〕等的設(shè)計(jì)方法；〔3〕掌握static、this、super等關(guān)鍵字的使用；〔4〕掌握J(rèn)ava中兩種比擬器的用法。2．實(shí)驗(yàn)內(nèi)容實(shí)驗(yàn)題1定義一個(gè)類(lèi)Book，包含兩個(gè)屬性：一個(gè)是private的String類(lèi)型的屬性title、一個(gè)是private的float類(lèi)型的屬性listPrice，封裝這兩個(gè)屬性的四個(gè)方法setTitle〔〕和getTitle〔〕、setListPrice()和geListPrice〔〕。根本要求：〔1〕設(shè)計(jì)類(lèi)Book及類(lèi)BookManagement，在類(lèi)BookManagement中輸出Book類(lèi)的對(duì)象的兩個(gè)private屬性；〔2〕重寫(xiě)父類(lèi)的toString〔〕方法，實(shí)現(xiàn)Book類(lèi)實(shí)例的兩個(gè)屬性的輸出。package.nwsuaf.jp.p2.data;publicclassBook{privateStringtitle;privatefloatlistPrice;publicstaticintnum;publicBook(Stringt,doublep){this.title=t;this.listPrice=(float)p;num++;}publicStringgetTitle(){returntitle;}publicvoidsetTitle(Stringtitle){this.title=title;}publicfloatgetListPrice(){returnlistPrice;}publicvoidsetListPrice(floatlistPrice){this.listPrice=listPrice;}@OverridepublicStringtoString(){returngetTitle()+"\n￥："+getListPrice();}}package.nwsuaf.jp.p2;importjavax.swing.JOptionPane;import.nwsuaf.jp.p2.data.Book;publicclassBookManagement{ publicstaticvoidmain(String[]args){ Bookbook1=newBook("《閑話中國(guó)人》",28.5); Bookbook2=newBook("《吼叫山莊》",20); //System.out.println(book.toString()); JOptionPane.showMessageDialog(null,"Book:\n"+book1 +"\n"+book2+"\n"+"Thereare"+Book.num+"books.");}}實(shí)驗(yàn)題2有兩個(gè)類(lèi)：MobileManagement和Mobile，Mobile類(lèi)的的兩個(gè)實(shí)例分別描述如圖3.4所示兩部名稱(chēng)及價(jià)格，類(lèi)MobileManagement在包中，而Mobile在包中。根本要求：設(shè)計(jì)Mobile類(lèi)與MobileManagement類(lèi)，在類(lèi)MobileManagement類(lèi)中實(shí)例化Mobile類(lèi)的對(duì)象使程序能夠顯示兩部的價(jià)格和數(shù)量，運(yùn)行結(jié)果如圖3.5。E365,1780RMBM330,1450RMB圖3.4及價(jià)格圖圖3.5運(yùn)行結(jié)果package.nwsuaf.jp.p3.data;publicclassMobile{publicstaticintnum;privateStringname;privatefloatprice;publicMobile(Stringname,floatprice){=name;this.price=price;num++;}publicStringgetName(){returnname;}publicfloatgetPrice(){returnprice;}}package.nwsuaf.jp.p3;importjavax.swing.JOptionPane;import.nwsuaf.jp.p3.data.Mobile;publicclassMobileManagement{publicstaticvoidmain(String[]args){Mobilemobile1=newMobile("E365",1780);Mobilemobile2=newMobile("M330",1450);JOptionPane.showMessageDialog(null,"Mobilephones:\n\n"+mobile1.getName()+":"+mobile1.getPrice()+"RMB"+"\n"+mobile2.getName()+":"+mobile2.getPrice()+"RMB"+"\n\n"+"Thereare"+Mobile.num+"mobilephones");}}實(shí)驗(yàn)題3有四個(gè)類(lèi)，主類(lèi)Store在包中，Mobile、Mp3Player、Product在包.data中，Mobile、Mp3Player是Product的子類(lèi)，Product類(lèi)為抽象類(lèi)。根本要求：設(shè)計(jì)類(lèi)Mobile和類(lèi)MP3Player，使它們和類(lèi)Product、Store組成一個(gè)完整的程序，且運(yùn)行結(jié)果如圖3.6所示。圖3.6運(yùn)行結(jié)果package.nwsuaf.jp.p4.data;publicclassMobileextendsProduct{privateStringMakePlace;publicMobile(Stringtitle,floatPrice,StringmakePlace){super(title,Price);this.MakePlace=makePlace; }publicStringgetMakePlace(){returnMakePlace; }publicvoidsetMakePlace(StringmakePlace){MakePlace=makePlace; }@OverridepublicStringgetName(){//TODOAuto-generatedmethodstubreturntitle+"on"+MakePlace+"Mobile,"+Price+"RMB\n"; }}package.nwsuaf.jp.p4.data;publicclassMp3PlayerextendsProduct{privatelongMemorySize;publicMp3Player(Stringtitle,floatPrice,longmemorySize){super(title,Price);this.MemorySize=memorySize; }publiclonggetMemorySize(){returnMemorySize; }publicvoidsetMemorySize(longmemorySize){MemorySize=memorySize; }publicStringgetName(){returntitle+"("+MemorySize+"MB"+"),"+Price+"RMB"; }}package.nwsuaf.jp.p4.data;publicabstractclassProduct{protectedStringtitle;protectedfloatPrice;protectedstaticintnum;publicProduct(Stringtitle,floatPrice){super();this.title=title;this.Price=Price;num++; }publicStringgetTitle(){returntitle; }publicvoidsetTitle(Stringtitle){this.title=title; }publicfloatgetPrice(){returnPrice; }publicvoidsetPrice(floatprice){Price=price; }publicstaticintgetNum(){returnnum; }publicstaticvoidsetNum(intnum){ Product.num=num; }publicabstractStringgetName();@OverridepublicStringtoString(){returngetName(); }}package.nwsuaf.jp.p4;importjavax.swing.JOptionPane;import.nwsuaf.jp.p4.data.Mobile;import.nwsuaf.jp.p4.data.Mp3Player;import.nwsuaf.jp.p4.data.Product;publicclassStore{publicstaticvoidmain(String[]args){Mobilemobile1=newMobile("E365",1780,"China");Mobilemobile2=newMobile("M330",1450,"China");Mp3Playermp3Player1=newMp3Player("MeizoX3",399,256);Mp3Playermp3Player2=newMp3Player("MeizoE5",580,512);Mp3Playermp3Player3=newMp3Player("XliveXMMP3Player",930,256);JOptionPane.showMessageDialog(null,"Theproductsare:\n\n"+mp3Player1+"\n"+mp3Player2+"\n"+mp3Player3+"\n"+mobile1+mobile2+"\nThereare"+Product.getNum()+"products.");}}實(shí)驗(yàn)題4有四個(gè)類(lèi)，主類(lèi)Store在包中，Mobile、Mp3Player、Product在包.data中，Mobile、Mp3Player是Product的子類(lèi)，Product類(lèi)實(shí)現(xiàn)Comparable接口，請(qǐng)重寫(xiě)Comparable接口中方法compareTo，實(shí)現(xiàn)product對(duì)象按照價(jià)格排序，運(yùn)行結(jié)果如圖3.8所示。圖3.7運(yùn)行結(jié)果packagep.p5.data;publicclassMobileextendsProduct{privateStringbus;publicMobile(Stringbuss,Stringname,floatprice){super(name,price);this.bus=buss; }publicStringgetName(){returnname; }publicfloatgetPrice(){returnprice; }publicstaticintgetCount(){returncount; }publicStringtoString(){returnname+"on"+bus+","+String.valueOf(price)+"RMB"; }}package.nwsuaf.jp.p5.data;publicclassMp3PlayerextendsProduct{privateintmomery;publicMp3Player(Stringname,intmm,intprice){super(name,(float)price);this.momery=mm; }publicStringgetName(){returnname; }publicfloatgetPrice(){returnprice; }publicstaticintgetCount(){returncount; }publicStringtoString(){returnname+"("+momery+"MB"+"),"+String.valueOf(price)+"RMB"; }}package.nwsuaf.jp.p5.data;publicabstractclassProductimplementsComparable<Product>{protectedStringname;protectedfloatprice;protectedstaticintcount;protectedProduct(Stringname,floatprice){=name;this.price=price; ++count; }publicStringgetName(){returnname; }publicfloatgetPrice(){returnprice; }publicstaticintgetCount(){returncount; }publicintcompareTo(Productproduct){returnnewFloat(product.getPrice())pareTo(price); }}package.nwsuaf.jp.p5;importjava.util.Arrays;importjavax.swing.JOptionPane;import.nwsuaf.jp.p5.data.Mobile;import.nwsuaf.jp.p5.data.Mp3Player;import.nwsuaf.jp.p5.data.Product;publicclassStore{publicstaticvoidmain(String[]args){Mobilemobile1=newMobile("ChinaMobile","E365",1780);Mobilemobile2=newMobile("ChinaMobile","M330",1450);Mp3Playerplayer1=newMp3Player("M