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