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/**
* @Author: Yeman
* @Date: 2021-09-23-9:03
* @Description:
*/
class Complex{
private double realPart; //复数的实部
private double imaginaryPart; //复数的虚部
public Complex() { //空参构造器
}
public Complex(double realPart, double imaginaryPart) {
this.realPart = realPart;
this.imaginaryPart = imaginaryPart;
}
//属性的get、set方法
public double getRealPart() {
return realPart;
}
public void setRealPart(double realPart) {
this.realPart = realPart;
}
public double getImaginaryPart() {
return imaginaryPart;
}
public void setImaginaryPart(double imaginaryPart) {
this.imaginaryPart = imaginaryPart;
}
//加法运算
public Complex add(Complex otherComplex){
if (otherComplex != null) {
return new Complex(this.getRealPart() + otherComplex.getRealPart(),this.getImaginaryPart() + otherComplex.getImaginaryPart());
}else throw new RuntimeException("参与运算的对象为空！");
}
//减法运算
public Complex decrease(Complex otherComplex){
if (otherComplex != null) {
return new Complex(this.getRealPart() - otherComplex.getRealPart(),this.getImaginaryPart() - otherComplex.getImaginaryPart());
}else throw new RuntimeException("参与运算的对象为空！");
}
//乘法运算
public Complex multiply(Complex otherComplex){
if (otherComplex != null) {
double newReal = this.getRealPart() * otherComplex.getRealPart() - this.getImaginaryPart() * otherComplex.getImaginaryPart();
double newImaginary = this.getImaginaryPart() * otherComplex.getRealPart() + this.getRealPart() * otherComplex.getImaginaryPart();
return new Complex(newReal,newImaginary);
}else throw new RuntimeException("参与运算的对象为空！");
}
//除法运算
public Complex divide(Complex otherComplex){
if (otherComplex != null) {
if (otherComplex.getRealPart() != 0 && otherComplex.getImaginaryPart() != 0){
double newReal = (this.getRealPart() * otherComplex.getRealPart() + this.getImaginaryPart() * otherComplex.getImaginaryPart()) / (otherComplex.getRealPart() * otherComplex.getRealPart() + otherComplex.getImaginaryPart() * otherComplex.getImaginaryPart());
double newImaginary = (this.getImaginaryPart() * otherComplex.getRealPart() - this.getRealPart() * otherComplex.getImaginaryPart()) / (otherComplex.getRealPart() * otherComplex.getRealPart() + otherComplex.getImaginaryPart() * otherComplex.getImaginaryPart());
return new Complex(newReal,newImaginary);
}else throw new RuntimeException("除数不能为0！");
}else throw new RuntimeException("参与运算的对象为空！");
}
//取模
public double delivery(){
return Math.sqrt(this.getRealPart() * this.getRealPart() + this.getImaginaryPart() * this.getImaginaryPart());
}
//幅度值（角度）
public double angle(){
double atan;
if (this.getRealPart() != 0) { //注意，该处double型变量若有进行其他操作，则不能以此方式判断其等于0，应该是其绝对值小于某个很小的数；而这当前情景下，其实精度问题并不影响，因此可以这样写
atan = Math.atan(this.getImaginaryPart() / this.getRealPart());
}else {
if (this.getImaginaryPart() > 0) {
atan = Math.PI / 2;
}else if (this.getImaginaryPart() |