DDA13.java

package hw;

import java.lang.Math;
import java.awt.Graphics;
import java.util.Scanner;
import java.applet.Applet;

public class DDA13 extends Applet {

	int x1, x2, y1, y2;
	double steps;
	double dx, dy;
	double xInc, yInc;
	double x, y;
	int xx, yy;

	public void paint(Graphics g) {
		Scanner input = new Scanner(System.in);
		System.out.println("Enter x1,y1,x2 y2");
		x1 = input.nextInt();
		y1 = input.nextInt();
		;
		x2 = input.nextInt();
		;
		y2 = input.nextInt();
		;
		dx = x2 - x1;
		dy = y2 - y1;
		if (Math.abs(dx) > Math.abs(dy)) {
			steps = Math.abs(dx);
		} else {
			steps = Math.abs(dy);
		}
		xInc = dx / steps;
		yInc = dy / steps;

		x = x1;
		y = y1;
		System.out.println(steps);
		for (int i = 0; i < steps; i++) {
			x = x + Math.round(xInc);
			y = y + Math.round(yInc);
			xx = (int) x;
			yy = (int) y;
			System.out.println(x + " " + y);

			g.fillOval(xx, yy, 10, 10);
		}
	}
}