问题描述：
设计一个复数类,成员变量包括实部和虚部,成员方法包括实现复数加法、减法、比较等运算或者操作,并验证
问题解答：
我来补答
class complex{
double x,y;
complex(double a,double b){x=a;y=b;}
}
public class shiyan42 {
public static void main(String[] args)
{
complex num1=new complex(6,-23);
complex num2=new complex(1,-7);
System.out.println("num1的realpart="+"6"+" 其imagepart="+"-23i");
System.out.println("num2的realpart="+"1"+" 其imagepart="+"-7i");
double realpart=num1.x+num2.x;
double imagepart=num1.y+num2.y;
System.out.println("相加后 realpart="+realpart+" imagepart="+imagepart+"i");
realpart=num1.x-num2.x;
imagepart=num1.y-num2.y;
System.out.println("相减后 realpart="+realpart+" imagepart="+imagepart+"i");
}
}
