Tutorial: Drawing lines.

g.drawLine(60,20,60,100) draws a line from (60,20) to (60,100) of the Graphic g. The current color and stroke will be used.

We can control the thickness of the line and the end-cap.

The cap determines what happens at the end of a line.

With the Graphics and the Graphics2D classes we can specify features of the Stroke used to draw the line.

g.setStroke(new BasicStroke(10))

Sets the thickness of the line to be drawn.

g.setStroke(new BasicStroke(10, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER))

The three parameters are thickness, cap style and join style.

The cap style dictates what happens at the end of the line.

BasicStroke.CAP_BUTT

BasicStroke.CAP_ROUND

BasicStroke.CAP_SQUARE

The join style determines what happens where two line of a polygon meet.

BasicStroke.JOIN_MITER

BasicStroke.JOIN_ROUND

BasicStroke.JOIN_BEVEL

1. Thickness and CAP style