关于一道JAVA作业，麻烦各位帮忙看看，很急！！！谢谢
import javax.swing.JOptionPane;
import java.util.Date;
/**
* A3Q2:Compound Interest
*
* COURSE: COMP 1010 SECTION: DE
* INSTRUCTOR: Mr. Victor Balogun
* ASSIGNMENT: 3 QUESTION: 2
* @author GuanNan Zhang, 7606172
* @version date of completion
*/
public class poin
{
double x,y;

public poin(){}
public poin(double x,double y)
{
this.x=x;
this.y=y;
}
public double distanceTo(double x,double y)
{
double distance;
distance = Math.sqrt((Math.pow(this.x,2))+(Math.pow(this.y,2)));

return distance;
}
public int getQuadrant()
{
int quadrant=0;
if (this.x>0)
{
if (this.y>0)
quadrant=1;
else
quadrant=4;
}
if(this.x<0)
{
if(this.y>0)
quadrant=2;
else
quadrant=3;
}
return quadrant;
}
public void translate(double dx, double dy)
{
double newx;
double newy;
newx=this.x+dx;
newy=this.y+dy;
System.out.println("p.toString(): Point[ x="+newx+",y="+newy+"]");
return;
}
public String toString()
{


}
public boolean isOrigin()
{
boolean origin=false;
if(this.x!=0&&this.y!=0)
origin=false;
else
origin=true;
return origin;

}
public static void main(String[] args)
{
String input;
double x;
double y;
double dx;
double dy;
input=JOptionPane.showInputDialog("please input the x");
x=Double.parseDouble(input);
input=JOptionPane.showInputDialog("please input the y");
y=Double.parseDouble(input);
input=JOptionPane.showInputDialog("please input the dx");
dx=Double.parseDouble(input);
input=JOptionPane.showInputDialog("please input the dy");
dy=Double.parseDouble(input);
poin a=new poin(x,y);

System.out.println(a.distanceTo(x,y));
System.out.println("Creating Point object, origin");
System.out.println("origin = new Point(): Point[x=0.0, y=0.0]");
System.out.println("Creating new Point object, p:");
System.out.println("p = new Point("+x+","+y+"): Point[ x="+x+",y="+y+"]");
System.out.println("p.getX(): "+x);
System.out.println("p.gety(): "+y);
System.out.println("p.translate("+dx+","+dy);


System.out.println("p.distanceTo(origin): "+a.distanceTo(x,y));
System.out.println("p.getQuadrant(): "+a.getQuadrant());
System.out.println("p.isOrigin(): "+a.isOrigin());
System.out.println("End of processing.");

}
}
现在需要在public String toString()这里来调用public void translate(double dx, double dy)
，来输出public void translate(double dx, double dy)里面计算出来的newx和newy，而且public void translate(double dx, double dy)这里的dx和dy是在public static void main(String[] args)来输入的，如何把这3者联系起来，现在我不清楚该怎样在main函数来输入dx和dy，并且在main函数调用tostring的输出newx和newy，麻烦各位帮忙把这段程序完整下，马上要交作业了，谢谢谢谢各位了

[解决办法]

Java code

import javax.swing.JOptionPane; import java.util.Date; /** * A3Q2:Compound Interest * * COURSE:      COMP 1010  SECTION:    DE * INSTRUCTOR:  Mr. Victor Balogun * ASSIGNMENT:  3      QUESTION:  2 * @author      GuanNan Zhang, 7606172 * @version    date of completion */ public class poin { double x,y; public poin(){}   public poin(double x,double y)   {   this.x=x;   this.y=y;   }   public double distanceTo(double x,double y)   {         double distance;         distance = Math.sqrt((Math.pow(this.x,2))+(Math.pow(this.y,2)));                 return distance;         }   public int getQuadrant()   {   int quadrant=0;   if (this.x>0)   {   if (this.y>0)   quadrant=1;   else   quadrant=4;   }   if(this.x <0)   {   if(this.y>0)   quadrant=2;   else   quadrant=3;   }   return quadrant;   }   public void translate(double dx, double dy)   {   double newx;   double newy;   newx=this.x+dx;   newy=this.y+dy;   System.out.println("p.toString(): Point[ x="+newx+",y="+newy+"]");   return;   }   public String toString()   {       }   public boolean isOrigin()   {   boolean origin=false;   if(this.x!=0&&this.y!=0)   origin=false;   else   origin=true;   return origin;     }   public static void main(String[] args)   {   String input;   double x;   double y;   double dx;   double dy;   input=JOptionPane.showInputDialog("please input the x");   x=Double.parseDouble(input);   input=JOptionPane.showInputDialog("please input the y");   y=Double.parseDouble(input);   input=JOptionPane.showInputDialog("please input the dx");   dx=Double.parseDouble(input);   input=JOptionPane.showInputDialog("please input the dy");   dy=Double.parseDouble(input);   poin a=new poin(x,y);     System.out.println(a.distanceTo(x,y));   System.out.println("Creating Point object, origin");   System.out.println("origin = new Point(): Point[x=0.0, y=0.0]");   System.out.println("Creating new Point object, p:");   System.out.println("p = new Point("+x+","+y+"): Point[ x="+x+",y="+y+"]");   System.out.println("p.getX(): "+x);   System.out.println("p.gety(): "+y);   System.out.println("p.translate("+dx+","+dy);     System.out.println("p.distanceTo(origin): "+a.distanceTo(x,y));   System.out.println("p.getQuadrant(): "+a.getQuadrant());   System.out.println("p.isOrigin(): "+a.isOrigin());   System.out.println("End of processing.");     }   }
[解决办法]
改成这样是否满意
Java code
import javax.swing.JOptionPane; import java.util.Date;/** * A3Q2:Compound Interest * * COURSE:      COMP 1010  SECTION:    DE * INSTRUCTOR:  Mr. Victor Balogun * ASSIGNMENT:  3      QUESTION:  2 * @author      GuanNan Zhang, 7606172 * @version    date of completion */ public class Poin{     static double x,y; static double dx,dy;static double newx,newy;public Poin(){}   public Poin(double x,double y){   this.x=x;   this.y=y;   }       public double distanceTo(double x,double y){         double distance;         distance = Math.sqrt((Math.pow(this.x,2))+(Math.pow(this.y,2)));                 return distance;   }      public int getQuadrant(){             int quadrant=0;             if (this.x>0){                 if (this.y>0)           quadrant=1;       else           quadrant=4;   }         if(this.x <0){                 if(this.y>0)               quadrant=2;           else               quadrant=3;       }             return quadrant;   }     public void translate(double dx, double dy){            newx=this.x+dx;       newy=this.y+dy;             System.out.println("p.toString(): Point[ x="+newx+",y="+newy+"]");         }     public String toString(){       return "p.toString(): Point[ x="+newx+",y="+newy+"]";  }     public boolean isOrigin(){             boolean origin=false;             if(this.x!=0&&this.y!=0)           origin=false;          else           origin=true;                 return origin;     }     public static void main(String[] args){             String input;            input=JOptionPane.showInputDialog("please input the x");       x=Double.parseDouble(input);             input=JOptionPane.showInputDialog("please input the y");          y=Double.parseDouble(input);                 input=JOptionPane.showInputDialog("please input the dx");       dx=Double.parseDouble(input);             input=JOptionPane.showInputDialog("please input the dy");      dy=Double.parseDouble(input);             Poin a=new Poin(x,y);         System.out.println(a.distanceTo(x,y));       System.out.println("Creating Point object, origin");       System.out.println("origin = new Point(): Point[x=0.0, y=0.0]");       System.out.println("Creating new Point object, p:");       System.out.println("p = new Point("+x+","+y+"): Point[ x="+x+",y="+y+"]");       System.out.println("p.getX(): "+x);       System.out.println("p.gety(): "+y);       System.out.println("p.translate("+dx+","+dy);       System.out.println("p.distanceTo(origin): "+a.distanceTo(x,y));       System.out.println("p.getQuadrant(): "+a.getQuadrant());       System.out.println("p.isOrigin(): "+a.isOrigin());       System.out.println("End of processing.");     }   }