Question

定义一个复数类Complex:

1）包含实部real、虚部imag，
2）定义带参数构造函数初始化实部和虚部 ，
3）定义不带参数构造函数初始化实部和虚部值为零，
4）重载运算符+，实现两个复数相加，
5）重载<<输出运算符，输出复数。

Answer 1

参考代码如下：
public class Program
{
public static void main(String[] args)
{

class complex /*class complex begin*/

{
private double real,imagin;
public complex()
{
real=0;
imagin=0;
}
public complex(double a,double b)
{
real = a;
imagin = b;
}
public complex(complex C)
{
real=C.real;
imagin=C.imagin;
}

/*~complex(){}*/
double GetReal(){return real;}
double GetImagin(){return imagin;}
void SetReal(double realx){real=realx;}
void SetImagin(double imaginx){imagin=imaginx;}
public complex complexAdd(complex C)
{
double x,y;
x=real+C.real;
y=imagin+C.imagin;
SetReal(x);
SetImagin(y);
return this;
}
public complex complexMinus(complex C)
{
double x,y;
x=real-C.real;
y=imagin-C.imagin;
SetReal(x);
SetImagin(y);
return this;
}
public complex complexMulti(complex C)
{
double x,y,a,b,c,d;
a=real;
b=imagin;
c=C.real;
d=C.imagin;
x=-(a*c)+(b*d);
y=a*d+b*c;
SetReal(x);
SetImagin(y);
return this;
}
public complex complexdiv(complex C)
{
double a,b,c,d,x,y;
a=real;
b=imagin;
c=C.real;
d=C.imagin;
x=(a*c)/(c*c+d*d);
y=(a*d-c*b);
SetReal(x);
SetImagin(y);
return this;
}
public static boolean isEquals(complex C1,complex C2)
{
if(C1.real==C2.real && C1.imagin==C2.imagin)return true;
else return false;
}
public void StringToString()
{
System.out.println(real+"+"+imagin+"i");
}
};/*class complex end*/

complex a1 = new complex(3.2,4.5);
complex a2=new complex(a1);
complex a3 = new complex(a1.complexAdd(a2));
if(complex.isEquals(a1,a2)){System.out.println("Yes");}
else {System.out.println("Not");}
a1.StringToString();
a2.StringToString();
a3.StringToString();
}
}