complexnumber.java

java是一种面向对象程序的语言,我这里介绍了有关java课件的许多事例,它能帮助刚入门的人

public class Complexnumber{
  public double realpart=0.0f;
  public double imgpart=0.0f;
  
  public Complexnumber(){realpart=0.0;imgpart=0.0;}
  public Complexnumber(double r,double i)
     {realpart=r;imgpart=i;}
  
  public void Add(Complexnumber t)
   {this.realpart+=t.realpart;
    this.imgpart+=t.imgpart;
    }
  public void Sub(Complexnumber t)
   {this.realpart-=t.realpart;
    this.imgpart-=t.imgpart;
   }
   
  public void Add( double r)
   {this.realpart+=r;}
  public void Sub( double r)
   {this.realpart-=r;} 
  public String toString( )
   {return "\nrealpart="+realpart+"\nimgpart="+imgpart;
  }
public static void main(String[] args)	 
  {Complexnumber a=new Complexnumber(1,2);
   Complexnumber b=new Complexnumber(-1,-1);
   System.out.println("A:"+a);
   System.out.println("B:"+b);
   a.Add(b);
   System.out.println("A+B:"+a);
   a.Add(2);
   System.out.println("A+2:"+a);
  }
}