PointDemo.java

public class PointDemo{

  private class Point{

    private int x,y;

 

    public Point(){

    }

 

    public void setPoint(int x,int y){

      this.x=x;

      this.y=y;

    }

 

    public int getX(){return x;}

    public int getY(){return y;}

  }

 

  private Point[] points;

 

  public PointDemo(int length){

    points=new Point[length];

 

    for(int i=0;i<points.length;i++){

      points[i]=new Point();

      points[i].setPoint(i*5,i*5);

    }

  }

 

  public void showPoints(){

    for(int i=0;i<points.length;i++){

     System.out.printf("Point[%d]:x=%d,y=%d%n",i,points[i].getX(),points[i].getY());

    }

  }

}