java接口与实现接口的类实验报告

java接口与实现接口的类实验报告java接口与实现接口的类实验报告java接口与实现接口的类实验报告xxx公司java接口与实现接口的类实验报告文件编号：文件日期：修订次数：第1.0次更改批准审核制定方案设计，管理制度实验报告课程名称面向对象程序设计实验名称实验六、接口与实现接口的类日期2018/4/29学生学号姓名班级实验目的：通过本次实验，要求学生能进一步掌握接口、包中的基础类库和包中的工具类库的使用方法。实验条件：电脑一台、能上网查阅资料。1.定义Person类，包含name（姓名）、birthday（出生日期）、idCard（身份证号）、sex（性别）、age(年龄)等基本信息，通过使用Comparator<T>接口实验Person类可以按姓名、年龄、出生日期等多种比较规则进行排序。源代码：packageperson;publicclassPerson{ Stringname; StringidCard; Stringbirthday; charsex; intage; publicPerson(){ } publicPerson(Stringname,StringidCard,Stringbirthday,charsex,intage){ super(); =name; =idCard; =birthday; =sex; =age; } }packageperson;importclassCompareNameimplementsComparator<Person>{ @Override publicintcompare(Personp1,Personp2){ ame+"性别:"+person[i].sex+"年龄:"+person[i].age+"生日:"+person[i].birthday); } "\n按姓名排序后顺序为:"); (person,newCompareName()); for(inti=0;i<n;i++){ "姓名:"+person[i].name+"性别:"+person[i].sex+"年龄:"+person[i].age+"生日:"+person[i].birthday); } "\n按年龄排序后顺序为:"); (person,newCompareAge()); for(inti=0;i<n;i++){ "姓名:"+person[i].name+"性别:"+person[i].sex+"年龄:"+person[i].age+"生日:"+person[i].birthday); } "\n按生日排序后顺序为:"); (person,newCompareBirthday()); for(inti=0;i<n;i++){ "姓名:"+person[i].name+"性别:"+person[i].sex+"年龄:"+person[i].age+"生日:"+person[i].birthday); } }}实验结果：2.首先定义基本几何图形接口（IShape），然后定义IShape的实现类Circle(圆形)、Square（正方形）和Triangle(三角形)。要求计算各种图形的面积和周长。(提示:求三角形的面积用海伦公式：，其中a,b,c是三角形的边长，L=(a+b+c)/2，即周长的一半。)源代码：packagejiekoushape;publicinterfaceIShape{ publicdoublearea(); publicdoublelength();}packagejiekoushape;publicclassCircleimplementsIShape{ privateStringname; privatedoubler; publicCircle(Stringname,doubler){ super(); =name; =r; } publicStringgetName(){ returnname; } publicvoidsetName(Stringname){ =name; } publicdoublegetR(){ returnr; } publicvoidsetR(doubler){ =r; } @Override publicdoublearea(){ //TODO自动生成的方法存根 return*(r,2); } @Override publicdoublelength(){ //TODO自动生成的方法存根 return*r*2; } @Override publicStringtoString(){ //TODO自动生成的方法存根 returnname+"周长是："+length()+","+"面积是："+area(); }}packagejiekoushape;publicclassSquareimplementsIShape{ privateStringname; privatedoublea; publicSquare(Stringname,doublea){ super(); =name; =a; } publicStringgetName(){ returnname; } publicvoidsetName(Stringname){ =name; } publicdoublegetA(){ returna; } publicvoidsetA(doublea){ =a; } @Override publicdoublearea(){ //TODO自动生成的方法存根 returna*a; } @Override publicdoublelength(){ //TODO自动生成的方法存根 return4*a; } @Override publicStringtoString(){ //TODO自动生成的方法存根 returnname+"周长是："+length()+","+"面积是："+area(); }}packagejiekoushape;publicclassTriangleimplementsIShape{ privateStringname; privatedoublea; privatedoubleb; privatedoublec; publicTriangle(Stringname,doublea,doubleb,doublec){ super(); =name; =a; =b; =c; } publicStringgetName(){ returnname; } publicvoidsetName(Stringname){ =name; } publicdoublegetA(){ returna; } publicvoidsetA(doublea){ =a; } publicdoublegetB(){ returnb; } publicvoidsetB(doubleb){ =b; } publicdoublegetC(){ returnc; } publicvoidsetC(doublec){ =c; } publicdoublearea(){ //TODOAuto-generatedmethodstub doublel=(a+b+c)/2; return(l*(l-a)*(l-b)*(l-c)); } publicdoublelength(){ //TODOAuto-generatedmethodstub returna+b+c; } @Override publicStringtoString(){ //TODO自动生成的方法存根 returnname+"周长是："+length()+","+"面积是："+area(); } }packagejiekoushape;publicclassDemoIShape{ publicstaticvoidmain(String[]args){ //TODO自动生成的方法存根 IShapeshape=null; shape=newCircle("圆形",3);