How to draw lines in Java

Question

I\'m wondering if there\'s a funciton in Java that can draw a line from the coordinates (x1, x2) to (y1, y2)?

What I want is to do something like this:

Answer 1

In your class you should have:

public void paint(Graphics g){
   g.drawLine(x1, y1, x2, y2);
}

Then in code if there is needed you will change x1, y1, x2, y2 and call repaint();.