作业6(接口题上机)含答案.doc

习题1具有照像功的设备：手机Phone，数码照像机Camera,平板电脑Tablet pc请遵循 照像功能Photographable实现其Public void takePhoto()方法提示分别是设计3种设备的类，分别实现其照像功能的接口package ;public class Camera extends Photographable implements TakePhoto public Camera( String name )super( name );System.out.println( -有参- +name );public Camera()public void takePhoto()System.out.println( getName() + :像素很高 );Overridepublic void takePhotoint() / TODO Auto-generated method stubSystem.out.println( getName() + 有夜间模式，微距离模式等 );package ;public class Phone extends Photographable implements TakePhoto public Phone( String name )super( name );System.out.println( -有参- +name );public Phone()public void takePhoto()System.out.println( getName() + :像素低 );Overridepublic void takePhotoint() / TODO Auto-generated method stubSystem.out.println( getName() + 有傻瓜照相功能，还能打电话 );package ;public class TabletPC extends Photographable implements TakePhotopublic TabletPC( String name )super( name );System.out.println( -有参- +name );public TabletPC()public void takePhoto()System.out.println( getName() + :像素还行 );Overridepublic void takePhotoint() / TODO Auto-generated method stubSystem.out.println( getName() + 屏幕大，看得爽，还能玩高清游戏 );package ;public abstract class Photographable private String name;public String getName() return name;public void setName(String name) = name;public Photographable( String name ) = name;public Photographable()public abstract void takePhoto();package ;public abstract interface TakePhoto public void takePhotoint();package .test;import .Camera;import .Phone;import .Photographable;import .TabletPC;public class TestPhoto /* * param args */public static void main(String args) / TODO Auto-generated method stubPhotographable pho = new Phone( 洛基亚 );pho.takePhoto();if( pho instanceof Phone )Phone p1 = (Phone)pho;p1.takePhotoint();System.out.println( * );Phone ph = new Phone( 小米 );ph.takePhoto();ph.takePhotoint();Camera ca = new Camera( 索尼数码 );ca.takePhoto();ca.takePhotoint();TabletPC ta = new TabletPC( ipad );ta.takePhoto();ta.takePhotoint();习题2打印机：打印机有多种类型，比如：黑白打印机、彩色打印机等学校可能配备其中任意一款打印机，负责打印人、或者书的详细信息系统要具备良好的可扩展性与可维护性package m;public interface BlackAndWhitePrinter public abstract void BAWPrint();package m;public interface ColourPrinter public abstract void colourPrint();package m;public class BookInformation implements ColourPrinter Overridepublic void colourPrint() / TODO Auto-generated method stubSystem.out.println( 我要打印一本彩色漫画书，需要彩色打印机 );package m;public class PersonnelInformation implements BlackAndWhitePrinter Overridepublic void BAWPrint() / TODO Auto-generated method stubSystem.out.println( 我要打印人事信息，需要用黑白打印机 );package m;public class TestPrinter /* * param args */public static void main(String args) / TODO Auto-generated method stubColourPrinter cp = new BookInformation();cp.colourPrint();BlackAndWhitePrinter bwp = new PersonnelInformation();bwp.BAWPrint();习题3在几何图形中，按图形的几何维数分为平面图和立体图，所有的平面图都能计算周长和面积，所有的立体图都能计算表面积和体积.定义Shape2D和Shape3D接口，分别描述平面图和立体图的特征和行为，在Shape2D中定义计算周长和面积的方法，Shape3D继承Shape2D接口，新增计算体积的方法，定义Circle圆类和Sphere球类，分别实现Shape2D和Shape3D接口。package mm;public interface Shape2D double pi = 3.14;public abstract double perimeter( double r );public abstract double area( double r );package mm;public interface Shape3D extends Shape2D public abstract double volume( double r );package mm;public class Circle implements Shape2D private double r;public double getR() return r;Overridepublic double area( double r ) / TODO Auto-generated method stubreturn pi*r*r;Overridepublic double perimeter( double r ) / TODO Auto-generated method stubreturn 2*pi*r;package mm;public class Sphere implements Shape3D private double r;public double getR() return r;Overridepublic double volume( double r ) / TODO Auto-generated method stubreturn 4.0/3.0*pi*r*r*r;Overridepublic double area(double r) / TODO Auto-generated method stubreturn 4*pi*r*r;Overridepublic double perimeter(double r) / TODO Auto-generated method stubreturn 2*pi*r;package mm;import java.util.Scanner;public class TestShape /* * param args */public static void main(String args) / TODO Auto-generated method stubScanner sc = new Scanner( System.in );System.out.println( 求圆的面积和周长请输入1 求球的面积、体积和周长请输入2 );int i = sc.nextInt();if( i = 1 )System.out.println( 请输入圆的半径： );double r = sc.nextDouble();Shape2D s2 = new Circle();System.out.println( 圆的面积为： + s2.area(r) + 平方米 );System.out.println( 圆的周长为： + s2.perimeter(r) + 米 );if( i = 2 )System.out.println( 请输入球的半径： );double r = sc.nextDouble();Shape3D s2 = new Sphere();System.out.println( 球的面积为： + s2.area(r) + 平方米 );System.out.println( 球的体积为： + s2.volume(r) + 立方米 );System.out.println( 球的最大截面周长为： + s2.perimeter(r) + 米 );习题4定义一个手机接口(定义5个方法：打电话、发短信、蓝牙、照相、gps功能)，再定义诺基亚类、三星类（注意：每种手机分为三个档次，高端机，中端机，低端机；高端机有所有5个功能，中端机没有GPS功能，低端机只有打电话和发短信功能）。在实现一个测试类，要求在测试类定义一个方法show出手机的所有功能：注，传入的手机有可能是任何手机package mmm;public interface MobilePhone public abstract void phone();public abstract void message();public abstract void blueteeth();public abstract void photo();public abstract void gps();package mmm;public class Nokia implements MobilePhone private String name;public String getName() return name;public Nokia( String name ) = name;System.out.println( name + 的功能有： );public Nokia()Overridepublic void blueteeth() / TODO Auto-generated method stubSystem.out.println( 蓝牙功能 );Overridepublic void gps() / TODO Auto-generated method stubSystem.out.println( gps功能 );Overridepublic void message() / TODO Auto-generated method stubSystem.out.println( 发短信功能 );Overridepublic void phone() / TODO Auto-generated method stubSystem.out.println( 打电话功能 );Overridepublic void photo() / TODO Auto-generated method stubSystem.out.println( 照相功能 );package mmm;public class NokiaHigh extends Nokia public NokiaHigh( String name )super( name );public NokiaHigh()public void blueteeth() System.out.println( 蓝牙功能 );public void gps() System.out.println( gps功能 );public void message() System.out.println( 发短信功能 );public void phone() System.out.println( 打电话功能 );public void photo() System.out.println( 照相功能 );package mmm;public class NokiaMiddle extends Nokia public NokiaMiddle( String name )super( name );public NokiaMiddle()public void blueteeth() System.out.println( 蓝牙功能 );public void gps() public void message() System.out.println( 发短信功能 );public void phone() System.out.println( 打电话功能 );public void photo() System.out.println( 照相功能 );package mmm;public class NokiaLow extends Nokia public NokiaLow( String name )super( name );public NokiaLow()public void blueteeth() public void gps() public void message() System.out.println( 发短信功能 );public void phone() System.out.println( 打电话功能 );public void photo() package mmm;import java.util.Scanner