java程序設(shè)計(jì)(第二版)課后習(xí)題答案

1、習(xí)題2.2imptjava.util.classMyDateprivateintyearprivateintmonthprivateintdaypublicMyDate(intyintmintd)構(gòu)造函數(shù)，構(gòu)造方法year=ymonth=mday=dendpublicMyDate(intyintmintd)publicintgetYear()返回年returnyearendgetYear()publicintgetMonth()返回月r

2、eturnmonthendgetMonth()publicintgetDay()返回日returndayendgetDay()endclassMyDateclassEmployeeprivateStringnameprivatedoublesalaryprivateMyDatehireDaypublicEmployee(StringndoublesMyDated)name=nsalary=shireDay=dendpublicEmplo

3、yee(StringndoublesMyDated)publicvoidprint()System.out.println(“名字:“name“n工資:“salary“n雇傭年份:“hireYear()“n“)endprint()publicvoidraiseSalary(doublebyPercent)salary=1byPercent100endpublicinthireYear()returnhireDay.getYear()en

4、dclassEmployeepublicclassMyTestClasspublicstaticvoidmain(String[]args)Employee[]staff=newEmployee[3]staff[0]=newEmployee(“HarryHacker“35000newMyDate(1989101))endmain()習(xí)題2.9imptjava.util.classPubTest1privateintivar1privat

5、efloatfvar1fvar2publicPubTest1()fvar2=0.0fpublicfloatsum_f_I()fvar2=fvar1ivar1returnfvar2publicvoidprint()System.out.println(“fvar2=“fvar2)publicvoidsetIvar1(intivalue)ivar1=ivaluepublicvoidsetFvar1(floativalue)fvar1=iva

6、luepublicclassPubMainTestpublicstaticvoidmain(String[]args)PubTest1pubt1=newPubTest1()pubt1.setIvar1(10)pubt1.setFvar1(100.02f)pubt1.sum_f_I()pubt1.print()習(xí)題2.10imptjava.util.classDateprivateintyearprivateintmonthprivate