計(jì)科1141廣東海洋大學(xué)java10(實(shí)驗(yàn)4)解答

1、廣東海洋大學(xué)學(xué)生實(shí)驗(yàn)報(bào)告書（學(xué)生用GDOU-B-11-112表)Java程序設(shè)計(jì)與開發(fā) 實(shí)驗(yàn)名稱實(shí)驗(yàn)四.類的基本編程課程名稱 技術(shù) 學(xué)院（系）數(shù)學(xué)與計(jì)算機(jī)學(xué)院專業(yè)計(jì)算機(jī)科學(xué)與技術(shù)課程號(hào)班級(jí)計(jì)科1141Comp lex Imidl = new Comp lex();學(xué)生姓名鄧超榮實(shí)驗(yàn)日期2016.10.2鐘海樓學(xué)號(hào)201411621110實(shí)驗(yàn)地點(diǎn) 040仃實(shí)驗(yàn)?zāi)康?掌握J(rèn)ava類的基本知識(shí)及應(yīng)用實(shí)驗(yàn)內(nèi)容:定義一個(gè)名為Complex的類實(shí)現(xiàn)復(fù)數(shù)概念及運(yùn)算，它的UML圖如下,先實(shí)現(xiàn)該類的相關(guān)方法，再試編寫主方法來測(cè)試該類這些的方法。Comp lex-rea IP art:double -imag i

2、naryP art:double實(shí)部虛部+Com pl ex()+Co mpl ex(double r,double i)默認(rèn)構(gòu)造方法 帶參數(shù)的構(gòu)造方法+getReal Part():double +setReal Part(double d): void返回實(shí)部設(shè)置實(shí)部+getlmagi nary (): double +setlmag inary (double d):void返回虛部 設(shè)置虛部+compl exAdd(Co mp lex c1, Complex c2): Comp lex+compl exAdd(Co mp lex c1, double c2): Comp lex+co

3、mp lexAdd(Co mp lex c1, Comp lex c2, Complex c3): Comple復(fù)數(shù)對(duì)象與復(fù)數(shù)對(duì)象相加 復(fù)數(shù)對(duì)象與實(shí)數(shù)相加:三個(gè)復(fù)數(shù)相加+co mp lexM inu s(Co mp lex c1, Complex c2) : Comp lex +co mp lexM inu s(Co mp lex c1, double c2) : Comp lex復(fù)數(shù)對(duì)象與復(fù)數(shù)對(duì)象相減 復(fù)數(shù)對(duì)象與實(shí)數(shù)相減+co mp lexMul(Co mplex c1, Comp lex c2) : Complex+co mp lexMul(Co mplex c1, double c2)

4、: Comp lex+co mp lexMul(Co mplex c1, Comp lex c2 Complex c3) : Complex復(fù)數(shù)對(duì)象與復(fù)數(shù)對(duì)象相乘 復(fù)數(shù)對(duì)象與實(shí)數(shù)相乘 三個(gè)復(fù)數(shù)相乘+toStri ng():Stri ng以a+bi的形式顯示復(fù)數(shù)(l+2i)+(2+3i)=3+5i(l+2i)+(-2)=-l+2i (l+2i)+(2+3i)+(4-2i)=7+3i (l+2i)-(2+3i)=-l-li (l+2i)-(-2)=3+2i (l+2i)*(2+3i)=-4+7i (l+2i)*(-2)=-2-4i(l+2i)*(2+3i)*(4-2i)=-2+36i代碼:publ

5、ic class ComplexDemo args ) public static void main(StringComplex c1 =new Com plex(1,2);Comp lex c2 =new Comp lex(2,3);Complex c3 =new Com pl ex(4,-2);double c = -2;Complex sum =new Comp lex();sum = sumcomplexAdd( c1, c2);System. out .println("(1+2i)+(2+3i)=" +sum);sum = sumcomplexAdd( c1,

6、 c);System. out .println("(1+2i)+(-2)=" +sum);sum = sumcomplexAdd( c1, c2 , c3);+sum);System. out .println("(1+2i)+(2+3i)+(4-2i)二"classmid| = mid|.complexMinus( c1, c2);System. out .println( "(1+2i)-(2+3i)="mid| = plexMinus( c1, c);System. out .println( "(1+2i)-(-2

7、)="Comp lex mul = new Comp lex();mul = plexMul( c1, c2);System. out .println("(1+2i)*(2+3i)="mul = plexMul( c1, c);System. out .println( "(1+2i)*(-2)="mul = plexMul( c1, c2 , c3);+mid|);+mul);+mul);System. out .println("(1+2i)*(2+3i)*(4-2i)二"+mul);Comp lex double r

8、ealPartdouble imagi naryPartComp lex()默認(rèn)構(gòu)造函數(shù)Com pl ex( double r, double i ) / 帶參數(shù)的構(gòu)造函數(shù)realPartimagi naryParti ;double getRealPart() / 返回實(shí)部return realPartvoid setRealPart( double d) / 設(shè)置實(shí)部realPartd;double getImaginaryPart() / 返回虛部return imaginaryPartvoid setImaginaryPart( doubled) / 設(shè)置虛部imaginaryPart

9、d;/ 復(fù)數(shù)Complex complexAdd(Complexc1 ,Complex c2) 對(duì)象與復(fù)數(shù)對(duì)象相加Complex sum = new Complex();sum. realPartc1. realPart + c2. realPartsum. imaginaryPartc1. imaginaryPart +c2. imaginaryPart/ 復(fù)數(shù)return sum;Complex complexAdd(Complex c1, double c2) 對(duì)象與實(shí)數(shù)相加Complex sum = new Complex();sum. realPartc1. realPart + c

10、2;sum. imaginaryPartc1. imaginaryPartc2. imaginaryPartreturn sum;Complex complexAdd(Complex c1 ,Complex c2 ,Complex c3) / 三個(gè)復(fù)數(shù)相加Complex sum = new Complex();sum. realPartc1. realPart + c2. realPart +c3. realPartsum. imaginaryPartc1. imaginaryPart +c2. imaginaryPart + c3. imaginaryPart/return sum;Comp

11、lex complexMinus(Complexc1 ,Complex c2) 復(fù)數(shù)對(duì)象與復(fù)數(shù)對(duì)象相減Complex mid = new Complex();mid. realPartc1. realPartc2. realPartmid. imaginaryPartc1. imaginaryPartreturn mid;if (imaginaryPart >0) /Complex complexMinus(Complexc1 , double c2) 復(fù)數(shù)對(duì)象與實(shí)數(shù)相減Complex mid = new Complex();mid. realPartc1. realPartc2;mid

12、. imaginaryPartc1. imaginaryPartreturn mid;Complex complexMul(Complexc1 ,Complex c2) / 復(fù)數(shù)對(duì)象與復(fù)數(shù)對(duì)象相乘Complex mul = new Complex();mul. realPartc1. realPart * c2. realPartc1. imaginaryPart * c2. imaginaryPartmul. imaginaryPart = c1. realPart * c2. imaginaryPart+ c1 . imaginaryPart* c2 . realPartreturn mu

13、l;Complex complexMul(Complex c1, double c2) / 復(fù)數(shù)對(duì)象與實(shí)數(shù)相乘Complex mul = new Complex();mul. realPartc1. realPart * c2;return mul;Complex complexMul(Complexc1 ,Complex c2,Complex c3)/三個(gè)復(fù)數(shù)相乘Comp lex mul = new Comp lex();mul. rea IP artc1. realPart* c2. realPartc1. imaginaryPart* c2. imaginaryPartmul. imag

14、inaryPart= c1. realPart * c2. imaginaryPart+ c1. imaginaryPartc2. real Partdouble r =mul.realPartdouble imul.imagi naryPartmul. rea IP artr * c3. rea IP artc3. imaginaryPartmul. imaginaryPartr * c3. imaginaryPart + i *c3. real Partreturn mul;public Stri ng toStri ng() /以a+bL的形式顯示復(fù)Stri ng s = new Stri ng();if (realPart !=0)s = ( int ) realPart + "+" + ( int ) imaginaryPartH：Helse if ( imaginaryPart =0) s = String. valueOf ( int ) realPar