package java2d;

import java.awt.*;
import java.awt.geom.*;
import javax.swing.JFrame;

public class DDA extends JFrame {

    public static void main(String[] args) {

        JFrame frame = new JFrame();

        DDA z = new DDA();
        z.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        z.setVisible(true);
        z.setTitle("Java 2D program");
        z.setSize(1024,768);




    }

    public void paint (Graphics g)
    {


        Graphics2D g2d =  (Graphics2D) g;


        double dx,dy,steps,x1,x2,y1,y2;
        double x3,y3,xinc,yinc;


        x1=110; y1= 150 ; x2 = 500; y2 = 140;
        dx = x2-x1;
        dy = y2-y1;

        if(Math.abs(dx) > Math.abs(dy))
        {
            steps = Math.abs(dx);





        }

        else

            steps = Math.abs(dy);


        xinc = (float)dx/steps;
        yinc = (float)dy/steps;

        x3 = x1; y3 = y1;


        drawPoint(x3,y3,g2d);

        for(int i = 1; i<steps;i++)
        {

            x3 = x3+xinc;
            y3 = y3 + yinc;
            drawPoint((int)(x3+0.5),(int) (y3+0.5),g2d );



        }




    }

    public static void drawPoint(double x , double y,Graphics2D g2d)
    {

        Line2D.Double line = new Line2D.Double(x, y, x, y);
         g2d.setColor(Color.red);
                g2d.draw(line);
    }


}