java复数四则运算-类的定义与对象.rar

//import java.awt.*; import java.util.*; //import java.lang.Object; class ComplexNumber{ private double m_dRealPart; private double m_dImaginPart; ComplexNumber(){} ComplexNumber(double r,double i){ m_dRealPart=r; m_dImaginPart=i; } double getRealPart(){ return m_dRealPart; } double getImaginPart(){ return m_dImaginPart; } public void setRealPart(double d){ m_dRealPart=d; } public void setImaginPart(double d){ m_dImaginPart=d; } public void complexAdd(ComplexNumber c){ this.m_dRealPart+=c.m_dRealPart; this.m_dImaginPart+=c.m_dImaginPart; } public void complexAdd(double c){ this.m_dRealPart+=c; //this.m_dImaginPart=this.m_dImaginPart; } public void complexMinus(ComplexNumber c){ this.m_dRealPart=this.m_dRealPart-c.m_dRealPart; this.m_dImaginPart=this.m_dImaginPart-c.m_dImaginPart; } public void complexMinus(double c){ this.m_dRealPart=this.m_dRealPart-c; //this.m_dImaginPart=this.m_dImaginPart; } public void complexMulti(ComplexNumber c){ //ComplexNumber b; double Newm_dRealPart = (c.m_dRealPart*this.m_dRealPart)-(c.m_dImaginPart*this.m_dImaginPart); this.m_dImaginPart = (c.m_dRealPart*this.m_dImaginPart)+(c.m_dImaginPart*this.m_dRealPart); this.m_dRealPart=Newm_dRealPart; } public void complexMulti(double c){ //ComplexNumber b; this.m_dRealPart = this.m_dRealPart*c; this.m_dImaginPart=this.m_dImaginPart*c; } public void ToString(){ String p=null; if(this.m_dRealPart==0) p=this.m_dImaginPart+"i"; else{ if(this.m_dImaginPart>0) p=this.m_dRealPart+"+"+this.m_dImaginPart+"i"; if(this.m_dImaginPart==0) p=Double.toString(this.m_dRealPart); if(this.m_dImaginPart<0){ p=this.m_dImaginPart+"i"; p=this.m_dRealPart+p;} } System.out.println(p); } } public class Plural{ public static void main(String args[]){ Scanner reader=new Scanner(System.in); System.out.print("输入第一个复数的实部："); double a=reader.nextDouble(); System.out.print("输入第一个复数的虚部："); double b=reader.nextDouble(); System.out.print("输入第二个复数的实部："); double d=reader.nextDouble(); System.out.print("输入第二个复数的虚部："); double e=reader.nextDouble(); ComplexNumber n=new ComplexNumber(a,b); System.out.println("第一个复数的实部："+n.getRealPart()+" "+"第一个复数的虚部："+n.getImaginPart()); //n.getRealPart(); //n.getImaginPart(); ComplexNumber m=new ComplexNumber(); System.out.println("选择要进行的复数四则运算："); System.out.println("1.1——复数间的加法，1.2——复数与实数间的加法；"); System.out.println("2.1——复数间的减法，1.2——复数与实数间的减法；"); System.out.println("3.1——复数间的乘法，3.2——复数与实数间的乘法；"); System.out.println("0——结束符号。"); int tag=1; while(true){ //Scanner tag=new Scanner(System.in); m.setRealPart(d); m.setImaginPart(e); if(tag==1){ System.out.print("第一个复数："); n.ToString(); System.out.print("第二个复数："); m.ToString(); tag=0;} double t=reader.nextDouble(); if(t!=1.1&&t!=1.2&&t!=2.1&&t!=2.2&&t!=3.1&&t!=3.2&&t!=0){ System.out.println("输入错误，请重新选择运算："); continue;} if(t==1.1){ m.complexAdd(n); System.out.print("复数间的加法结果："); m.ToString();continue;} if(t==1.2){ System.out.print("输入实数："); double c=reader.nextDouble(); m.complexAdd(c); System.out.print("第二个复数与实数间的加法结果："); m.ToString();continue;} if(t==2.1){ m.complexMinus(n); System.out.print("复数间的减法结果："); m.ToString();continue;} if(t==2.2){ System.out.print("输入实数："); double c=reader.nextDouble(); m.complexMinus(c); System.out.print("第二个复数与实数间的减法结果："); m.ToString();continue;} if(t==3.1){ m.complexMulti(n); System.out.println("复数间的乘法结果："); m.ToString();continue;} if(t==3.2){ System.out.print("输入实数："); double c=reader.nextDouble(); m.complexMulti(c); System.out.print("第二个复数与实数间的乘法结果："); m.ToString();continue;} if(t==0) break; } } }