/**
* @param args
*/
int shi,xu;//復數的實部和虛部
public ComplexNumber(int n,int ni){
shi = n;
xu = ni;
}
public void ComplexShow(){
String output = "";
output+=shi;
if(xu>=0){
output+="+";
}
output+=xu;
output+="i";
System.out.println(output);
}
public void ComplexShow1(){//不要換行
String output = "";
output+=shi;
if(xu>=0){
output+="+";
}
output+=xu;
output+="i";
System.out.print(output);
}
public static void ComplexAdd(ComplexNumber x1,ComplexNumber x2){//實現兩個復數相加
ComplexNumber cn = new ComplexNumber(0, 0);//將兩個復數相加等於cn
cn.shi = x1.shi + x2.shi;
cn.xu = x1.xu + x2.xu;
cn.ComplexShow();
}
public static void ComplexMinus(ComplexNumber x1,ComplexNumber x2){//實現兩個復數相減，第壹個數減第二個數
ComplexNumber cn = new ComplexNumber(0, 0);//將兩個復數相加等於cn
cn.shi = x1.shi - x2.shi;
cn.xu = x1.xu - x2.xu;
cn.ComplexShow();
}
public static void ComplexMultiply(ComplexNumber x1,ComplexNumber x2){//實現兩個復數相乘
ComplexNumber cn = new ComplexNumber(0, 0);//將兩個復數相加等於cn
cn.shi = x1.shi * x2.shi - x1.xu * x2.xu;
cn.xu = x1.xu * x2.shi + x2.xu * x1.shi;
cn.ComplexShow();
}
public static void ComplexDivide(ComplexNumber x1,ComplexNumber x2){//實現兩個復數相除，第壹個數除以第二個數
ComplexNumber x2_gong = new ComplexNumber(x2.shi,0-x2.xu);//求被除數的***軛復數
ComplexNumber cn = new ComplexNumber(0, 0);//將兩個復數相加等於cn
cn.shi = x1.shi * x2_gong.shi - x1.xu * x2_gong.xu;//x1/x2,求分子實部
cn.xu = x1.xu * x2_gong.shi + x2_gong.xu * x1.shi;//x1/x2,求分子虛部
int fenMu = x2.shi * x2.shi + x2.xu * x2.xu;
if(fenMu!=0){
System.out.print("(");
cn.ComplexShow1();
System.out.print(")");
System.out.println("/"+fenMu);
}
else
System.out.println("分母為零，無法相除");
}
public static void main(String[] args) {
// TODO Auto-generated method stub
ComplexNumber cn = new ComplexNumber(-1, -1);//初始化復數
cn.ComplexShow();//顯示復數
ComplexNumber c1 = new ComplexNumber(-1, -1);
ComplexNumber c2 = new ComplexNumber(1, 1);
System.out.print("加：");
ComplexAdd(c1, c2);
System.out.print("減：");
ComplexMinus(c1, c2);
System.out.print("乘：");
ComplexMultiply(c1, c2);
System.out.print("除：");
ComplexDivide(c1, c2);//自己化簡
}
}