public class Complex {
private int realPart;
private int imagPart;
public int getRealPart() {
return realPart;
}
public void setRealPart(int realPart) {
this.realPart = realPart;
}
public int getImagPart() {
return imagPart;
}
public void setImagPart(int imagPart) {
this.imagPart = imagPart;
}
public Complex plus(Complex c){
int real=this.realPart+c.realPart;
int imag=this.imagPart+c.imagPart;
Complex result=new Complex();
result.setRealPart(real);
result.setImagPart(imag);
return result;
}
public Complex minus(Complex c){
int real=this.realPart-c.realPart;
int imag=this.imagPart-c.imagPart;
Complex result=new Complex();
result.setRealPart(real);
result.setImagPart(imag);
return result;
}
public String format(){
if(this.imagPart<0){
return this.realPart+(this.imagPart+"i");
}else{
return this.realPart+"+"+this.imagPart+"i";
}
}
public static void main(String[] args) {
System.out.println("請輸入第壹個復數(格式：a+bi)：");
Scanner in=new Scanner(System.in);
String complex1=in.nextLine();
System.out.println("請輸入第二個復數(格式：a+bi)：");
String complex2=in.nextLine();
Complex c1=new Complex();
Complex c2=new Complex();
String[] c1Arr=complex1.split("\\+");
int real1=Integer.parseInt(c1Arr[0]);
int imag1=Integer.parseInt(c1Arr[1].substring(0, 1));
c1.setRealPart(real1);
c1.setImagPart(imag1);
String[] c2Arr=complex2.split("\\+");
int real2=Integer.parseInt(c2Arr[0]);
int imag2=Integer.parseInt(c2Arr[1].substring(0, 1));
c2.setRealPart(real2);
c2.setImagPart(imag2);
System.out.println("第壹個復數+第二個復數:"+c1.plus(c2).format());
System.out.println("第壹個復數-第二個復數:"+c1.minus(c2).format());
}
}